Earthquake 5 km NE Ragalna (CT), Magnitude Mw 3.4, 31 December 2020 time 21:58:09 (Timezone Italy)

A magnitude Mw 3.4 earthquake occured in region: 5 km NE Ragalna (CT), on

31-12-2020 20:58:09 (UTC)
31-12-2020 21:58:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6690, 14.9710 at 16 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Did you feel it? Fill in the questionnaire.

Display location by

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).

Municipality	Region	Distance (km)	Inhabitants	Cumulative Inhabitants
Ragalna	CT	5	3924	3924
Nicolosi	CT	8	7463	11387
Belpasso	CT	9	28108	39495
Biancavilla	CT	9	24007	63502
Santa Maria di Licodia	CT	9	7641	71143
Pedara	CT	10	14102	85245
Trecastagni	CT	11	10910	96155
Camporotondo Etneo	CT	12	5023	101178
San Pietro Clarenza	CT	12	7743	108921
Paternò	CT	12	48228	157149
Zafferana Etnea	CT	12	9517	166666
Adrano	CT	12	36122	202788
Viagrande	CT	13	8563	211351
Mascalucia	CT	13	31958	243309
Tremestieri Etneo	CT	14	20589	263898
Milo	CT	14	1087	264985
Gravina di Catania	CT	14	25838	290823
Aci Bonaccorsi	CT	15	3524	294347
San Giovanni la Punta	CT	15	23060	317407
Santa Venerina	CT	15	8592	325999
Aci Sant'Antonio	CT	15	17984	343983
Sant'Agata li Battiati	CT	16	9479	353462
Misterbianco	CT	17	49410	402872
San Gregorio di Catania	CT	17	11966	414838
Aci Catena	CT	17	29851	444689
Valverde	CT	17	7840	452529
Motta Sant'Anastasia	CT	17	12116	464645
Sant'Alfio	CT	18	1582	466227
Bronte	CT	18	19172	485399
Acireale	CT	18	52622	538021
Aci Castello	CT	20	18723	556744

Municipalities with at least 50000 inhabitants

An earthquake occurred to

18 Km W of Acireale (52622 inhabitants)

21 Km NW of Catania (314555 inhabitants)

73 Km NW of Siracusa (122291 inhabitants)

77 Km SW of Reggio di Calabria (183035 inhabitants)

78 Km SW of Messina (238439 inhabitants)

82 Km E of Caltanissetta (63360 inhabitants)

85 Km N of Ragusa (73313 inhabitants)

89 Km NE of Vittoria (63339 inhabitants)

92 Km N of Modica (54633 inhabitants)

92 Km NE of Gela (75827 inhabitants)

Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.

Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.

Shakemap

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and updated as more data become available. See http://shakemap.ingv.it for additional information. The black star indicates the epicenter. The triangles show the accelerometric and velocimetric stations used in the calculation, colored according to the recorded shaking.

Intensity Shakemap

This map shows the distribution of instrumental intensities. The intensity is derived through an empirical law that correlates the recorded values of actual ground shaking, e.g., acceleration and velocity, with the macroseismic intensity for Italian earthquakes, as reported in the Italian Macroseismic Database (DBMI15, https://doi.org/10.13127/cpti/cpti15.3).

Peak ground acceleration Shakemap

This map shows the distribution of peak ground acceleration expressed as percent of the acceleration of gravity (i.e., g = 9.81 m/s²).

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.

Felt maps

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.

Locations history

Type	Magnitude	Date and Time (UTC)	Latitude	Longitude	Depth (km)	Published time (UTC)	Author	Location ID
Bulletin Rev1000	ML 3.6	2020-12-31 20:58:09	37.6687	14.9707	16	2021-02-26 14:56:20	Bollettino Sismico Italiano INGV	87500871
Reviewed Evaluation Mw Rev501	Mw 3.4	2020-12-31 20:58:09	37.666	14.943	12	2021-01-03 17:30:08	TDMT-INGV Revised	85998851
Reviewed Rev200	ML 3.5	2020-12-31 20:58:09	37.666	14.943	11	2020-12-31 21:24:51	Sala Operativa INGV-OE (Catania)	85919861

Preferred location and magnitude until now.

Origin information

Origin

Field	Value
Time (UTC)	2020-12-31 20:58:09 ± 0.06
Latitude	37.6687 ± 0.0036
Longitude	14.9707 ± 0.0068
Depth (km)	16 ± 1 (from location)
Evaluation mode of Origin	manual
Evaluation status of Origin	reviewed
Version	1000 -> BULLETIN-INGV
Event type	earthquake
Origin ID	87500871

Uncertainty

Field	Value
Preferred uncertainty description	uncertainty ellipse
Semi-major axis of confidence ellipse (meter)	501
Semi-minor axis of confidence ellipse (meter)	264
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)	286
Circular confidence region, given by single value of horizontal uncertainty (meter)	500.0
Confidence level of the uncertainty (%)	68

Quality

Field	Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)	44
Number of associated phases, regardless of their use for origin computation	102
Number of defining phases	100
RMS of the travel time residuals of the arrivals used for the origin computation (sec)	0.38
Epicentral distance of station closest to the epicenter (degree)	0.00000
Epicentral distance of station farthest from the epicenter (degree)	3.51455
Number of stations at which the event was observed	75
Number of stations from which data was used for origin computation	73

Magnitudes information

Mw:3.4

Field	Value
Value	3.4
Uncertainty
Num. used stations
Type of magnitude	Mw
Reference to an origin	85998851
Agency	INGV
Autore	TDMT-INGV Revised
Time of creation (UTC)	2021-01-03 17:30:08

ML:3.6

Field	Value
Value	3.6
Uncertainty	0.3
Num. used stations	148
Type of magnitude	ML
Reference to an origin	87500871
Agency	INGV
Autore	Bollettino Sismico Italiano INGV
Time of creation (UTC)	2021-02-26 10:53:47

ML:3.5

Field	Value
Value	3.5
Uncertainty	0.2
Num. used stations
Type of magnitude	ML
Reference to an origin	85919861
Agency	INGV
Autore	Sala Operativa INGV_OE (Catania)
Time of creation (UTC)	2020-12-31 21:24:51

Picking and Arrival

SCNL	Time	Uncertainty	Polarity	Evaluation_mode	Phase	Azimuth	Distance(km)	Takeoff_angle	Residual	Weight
IV.MTMR.HNZ.	2020-12-31T20:59:47.25	3.0	undecidable	manual	Sg				8.6	0
IV.LRP.EHZ.	2020-12-31T20:59:16.16	3.0	negative	manual	Pn				4.61	0
IV.AMUR.HHZ.	2020-12-31T20:59:03.18	0.6	undecidable	manual	P	21	385.6251	54	-0.72	10
IV.NOCI.HHZ.	2020-12-31T20:59:03.49	0.3	undecidable	manual	P	27	390.1095	54	-0.96	13
OT.TAR1.HHZ.	2020-12-31T20:59:01.20	0.3	undecidable	manual	P	31	374.3475	54	-1.29	11
GE.MATE.HHZ.	2020-12-31T20:59:00.70	0.6	undecidable	manual	P	24	362.6592	54	-0.34	11
IV.MIGL.HHZ.	2020-12-31T20:58:59.92	0.6	undecidable	manual	P	21	349.3836	54	0.54	11
IV.SLCN.HHZ.	2020-12-31T20:58:53.46	0.6	undecidable	manual	P	10	307.2591	54	-0.68	11
IV.SALB.HHZ.	2020-12-31T20:58:49.24	0.6	undecidable	manual	P	25	272.3163	54	-0.56	15
IV.PIPA.HHZ.	2020-12-31T20:58:48.98	0.3	undecidable	manual	P	38	257.3535	54	1.05	22
IV.LADO.EHZ.	2020-12-31T20:58:47.04	0.6	undecidable	manual	P	44	250.0608	54	0.01	21
IV.TDS.HHZ.	2020-12-31T20:58:46.15	0.3	undecidable	manual	P	28	250.6602	54	-0.95	24
MN.TIP.HHZ.	2020-12-31T20:58:44.81	0.3	undecidable	manual	P	42	228.4935	54	0.47	34
IV.CELI.HHZ.	2020-12-31T20:58:43.79	0.3	undecidable	manual	P	34	234.0879	54	-1.25	23
IV.CET2.HHZ.	2020-12-31T20:58:42.67	0.3	undecidable	manual	P	22	223.3098	54	-1.02	28
IV.SPS2.HHZ.	2020-12-31T20:58:41.72	0.3	undecidable	manual	P	33	215.6175	54	-1.02	29
MN.WDD.HHZ.	2020-12-31T20:58:40.17	0.6	undecidable	manual	P	191	207.0372	54	-1.49	16
IV.MBFT.HHZ.	2020-12-31T20:58:38.37	0.3	undecidable	manual	P	280	179.487	54	0.13	49
IV.CRJA.HHZ.	2020-12-31T20:58:38.35	0.3	undecidable	manual	P	275	173.0934	54	0.9	40
IV.GRI.EHZ.	2020-12-31T20:58:37.97	0.3	undecidable	manual	P	44	179.7867	54	-0.31	47
IV.ACATE.EHZ.	2020-12-31T20:58:35.25	0.6	undecidable	manual	S	210	82.6506	94	0.91	33
IV.SCIAC.HHZ.	2020-12-31T20:58:35.76	0.3	undecidable	manual	P	265	165.1125	54	-0.7	44
IV.PLAC.HHZ.	2020-12-31T20:58:35.40	0.3	undecidable	manual	P	56	154.7229	92	0.36	52
IV.HAVL.HHZ.	2020-12-31T20:58:34.25	0.6	undecidable	manual	S	170	79.7646	95	0.68	36
IV.HMDC.HHZ.	2020-12-31T20:58:34.21	0.6	undecidable	manual	S	192	80.4639	95	0.46	40
IV.JOPP.HHZ.	2020-12-31T20:58:31.28	0.3	undecidable	manual	P	37	131.1687	93	-0.14	59
IV.SOLUN.HHZ.	2020-12-31T20:58:31.66	0.3	undecidable	manual	P	291	134.3655	93	-0.26	56
IV.IST3.HHZ.	2020-12-31T20:58:31.16	1.0	undecidable	manual	P	10	127.4724	93	0.31	19
IV.SCIAR.HHZ.	2020-12-31T20:58:28.64	0.3	undecidable	manual	P	286	111.1998	93	0.29	60
IV.ALJA.HHZ.	2020-12-31T20:58:28.94	0.3	undecidable	manual	P	275	107.2149	93	1.21	42
IV.CMDO.HHZ.	2020-12-31T20:58:28.94	0.6	undecidable	manual	P	258	103.4187	93	1.79	20
IV.SSY.HHZ.	2020-12-31T20:58:28.55	0.6	undecidable	manual	S	171	57.3981	97	0.92	34
IV.HPAC.HHZ.	2020-12-31T20:58:27.35	0.3	undecidable	manual	P	177	106.7154	93	-0.3	60
MN.CEL.HHZ.	2020-12-31T20:58:27.48	0.1	negative	manual	P	51	104.0181	93	0.23	81
IV.IACL.HHZ.	2020-12-31T20:58:27.77	0.3	undecidable	manual	P	331	109.9122	93	-0.37	58
IV.SOI.EHZ.	2020-12-31T20:58:27.65	0.1	negative	manual	P	64	104.9172	93	0.26	80
IV.MSFR.HHZ.	2020-12-31T20:58:26.84	0.6	undecidable	manual	S	321	52.4031	98	0.54	43
IV.IFIL.HHZ.	2020-12-31T20:58:26.60	0.3	undecidable	manual	P	341	105.117	93	-0.81	50
IV.ISPIC.HNZ.	2020-12-31T20:58:26.15	0.3	undecidable	manual	P	183	98.7234	94	-0.28	61
IV.SICLA.EHZ.	2020-12-31T20:58:25.51	0.3	undecidable	manual	P	45	92.1411	94	0.1	64
IV.HAGA.HHZ.	2020-12-31T20:58:25.08	0.6	undecidable	manual	S	159	45.5211	99	0.58	40
IV.RESU.HHZ.	2020-12-31T20:58:25.15	0.3	undecidable	manual	P	269	80.2641	95	1.56	37
IV.HCRL.HHZ.	2020-12-31T20:58:24.28	0.6	undecidable	manual	S	173	43.1235	100	0.43	43
IV.PLLN.EHZ.	2020-12-31T20:58:24.05	0.3	undecidable	manual	P	297	80.9523	94	0.36	63
IV.CPTP.HHZ.	2020-12-31T20:58:24.24	0.3	undecidable	manual	P	248	76.7676	95	1.19	45
IV.GIB.HHZ.	2020-12-31T20:58:24.90	0.3	undecidable	manual	P	294	90.1431	94	-0.2	62
IV.MUCR.HHZ.	2020-12-31T20:58:24.61	0.6	undecidable	manual	S	348	42.4242	100	0.95	37
IV.ILOS.HHZ.	2020-12-31T20:58:24.66	0.3	undecidable	manual	P	359	86.247	94	0.16	64
IV.CSLB.HHZ.	2020-12-31T20:58:24.10	0.3	undecidable	manual	P	291	85.3479	94	-0.27	62
IV.AIO.HHZ.	2020-12-31T20:58:23.54	0.6	undecidable	manual	S	34	40.626	101	0.32	45
IV.HMDC.HHZ.	2020-12-31T20:58:23.20	0.3	undecidable	manual	P	192	80.4639	95	-0.41	62
IV.HAVL.HHZ.	2020-12-31T20:58:23.23	0.1	positive	manual	P	170	79.7646	95	-0.29	85
IV.MSRU.HHZ.	2020-12-31T20:58:23.82	0.1	negative	manual	P	35	81.0522	94	0.11	87
IV.ACATE.EHZ.	2020-12-31T20:58:23.55	0.1	negative	manual	P	210	82.6506	94	-0.41	82
IV.PETRA.HHZ.	2020-12-31T20:58:23.34	0.3	undecidable	manual	P	284	77.2671	95	0.22	65
IT.LNT.HGZ.	2020-12-31T20:58:23.36	0.6	undecidable	manual	S	176	42.2244	100	-0.27	46
IV.IVPL.HHZ.	2020-12-31T20:58:23.64	0.1	negative	manual	P	1	78.4659	95	0.32	84
IV.MILZ.HHZ.	2020-12-31T20:58:22.15	0.3	undecidable	manual	P	19	70.6737	95	0.04	68
IV.HLNI.HHZ.	2020-12-31T20:58:22.00	0.6	undecidable	manual	S	194	36.5412	102	-0.14	47
IV.RAFF.HHZ.	2020-12-31T20:58:22.24	0.1	negative	manual	P	227	72.9714	95	-0.22	86
IV.GALF.HHZ.	2020-12-31T20:58:21.70	0.6	undecidable	manual	S	278	35.742	103	-0.23	46
IV.ECTS.HHZ.	2020-12-31T20:58:20.08	0.6	undecidable	manual	S	29	27.0507	109	0.38	45
IV.EFIU.HHE.	2020-12-31T20:58:20.23	0.6	undecidable	manual	S	57	24.9528	111	1.06	34
IV.MPNC.HHZ.	2020-12-31T20:58:20.98	0.1	negative	manual	P	32	62.6928	96	0.09	91
IV.MSFR.HHZ.	2020-12-31T20:58:19.16	0.1	positive	manual	P	321	52.4031	98	-0.16	90
IV.SSY.HHZ.	2020-12-31T20:58:19.91	0.1	positive	manual	P	171	57.3981	97	-0.17	91
IV.EPOZ.HHZ.	2020-12-31T20:58:19.55	0.6	undecidable	manual	S	89	19.1697	120	1.78	22
IV.HAGA.HHZ.	2020-12-31T20:58:18.00	0.1	positive	manual	P	159	45.5211	99	-0.27	91
IV.CAGR.HHZ.	2020-12-31T20:58:18.88	0.1	positive	manual	P	263	41.625	100	1.2	64
IV.EPZF.HHZ.	2020-12-31T20:58:18.56	0.6	undecidable	manual	S	330	19.869	119	0.62	44
IT.LNT.HGZ.	2020-12-31T20:58:17.42	0.1	undecidable	manual	P	176	42.2244	100	-0.35	90
IV.EMSG.HHZ.	2020-12-31T20:58:17.56	0.6	undecidable	manual	S	354	16.9719	124	0.29	47
IV.HCRL.HHZ.	2020-12-31T20:58:17.56	0.1	positive	manual	P	173	43.1235	100	-0.34	90
IV.EPIT.HHN.	2020-12-31T20:58:17.06	0.6	undecidable	manual	S	25	17.5713	123	-0.33	47
IV.AIO.HHZ.	2020-12-31T20:58:17.71	0.1	negative	manual	P	34	40.626	101	0.18	92
IV.MUCR.HHZ.	2020-12-31T20:58:17.82	0.1	negative	manual	P	348	42.4242	100	0.03	95
IV.EVRN.HNZ.	2020-12-31T20:58:16.89	0.6	undecidable	manual	S	81	14.6742	129	0.11	48
IV.ECBD.HHN.	2020-12-31T20:58:16.51	0.6	undecidable	manual	S	39	15.9729	126	-0.56	45
IV.ENIC.HNZ.	2020-12-31T20:58:16.32	0.3	undecidable	manual	S	133	6.0939	156	0.95	55
IV.HLNI.HHZ.	2020-12-31T20:58:16.23	0.1	negative	manual	P	194	36.5412	102	-0.68	82
IV.EMCN.HHZ.	2020-12-31T20:58:16.37	0.3	undecidable	manual	S	22	14.6742	129	-0.41	69
IV.GALF.HHZ.	2020-12-31T20:58:16.78	0.1	positive	manual	P	278	35.742	103	-0.01	96
IV.ECNE.HHN.	2020-12-31T20:58:15.77	0.6	undecidable	manual	S	14	11.0778	139	-0.31	47
IV.ESLN.HHZ.	2020-12-31T20:58:15.04	0.6	undecidable	manual	S	7	2.7972	169	-0.06	51
IV.ESML.HHZ.	2020-12-31T20:58:15.60	0.6	undecidable	manual	S	235	9.7791	143	-0.27	48
IV.ECTS.HHZ.	2020-12-31T20:58:15.30	0.1	negative	manual	P	29	27.0507	109	-0.2	94
IV.ECPN.HHZ.	2020-12-31T20:58:15.55	0.6	undecidable	manual	S	9	8.4804	147	-0.12	50
IV.EFIU.HHE.	2020-12-31T20:58:15.57	0.1	undecidable	manual	P	57	24.9528	111	0.38	91
IV.ECHR.HHE.	2020-12-31T20:58:15.07	0.6	undecidable	manual	S	291	5.3946	158	-0.23	49
IV.EPOZ.HHZ.	2020-12-31T20:58:14.99	0.1	positive	manual	P	89	19.1697	120	0.61	84
IV.EMSG.HHZ.	2020-12-31T20:58:14.12	0.1	negative	manual	P	354	16.9719	124	0.02	100
IV.EPIT.HHN.	2020-12-31T20:58:14.19	0.1	undecidable	manual	P	25	17.5713	123	0.02	99
IV.EPZF.HHZ.	2020-12-31T20:58:14.34	0.1	positive	manual	P	330	19.869	119	-0.14	96
IV.EMCN.HHZ.	2020-12-31T20:58:13.53	0.1	negative	manual	P	22	14.6742	129	-0.28	95
IV.ECNE.HHN.	2020-12-31T20:58:13.12	0.3	undecidable	manual	P	14	11.0778	139	-0.3	71
IV.EVRN.HNZ.	2020-12-31T20:58:13.72	0.1	positive	manual	P	81	14.6742	129	-0.09	99
IV.ECBD.HHN.	2020-12-31T20:58:13.67	0.1	undecidable	manual	P	39	15.9729	126	-0.31	94
IV.ENIC.HNZ.	2020-12-31T20:58:13.05	0.1	positive	manual	P	133	6.0939	156	0.05	100
IV.ECHR.HHE.	2020-12-31T20:58:12.52	0.1	undecidable	manual	P	291	5.3946	158	-0.44	93
IV.ESLN.HHZ.	2020-12-31T20:58:12.54	0.1	positive	manual	P	7	2.7972	169	-0.3	97
IV.ESML.HHZ.	2020-12-31T20:58:12.61	0.1	negative	manual	P	235	9.7791	143	-0.68	85
IV.ECPN.HHZ.	2020-12-31T20:58:12.95	0.1	undecidable	manual	P	9	8.4804	147	-0.22	97

Station Magnitude and Amplitude

SCNL	mag	Generic_amplitude	Period	Type	Category	Unit	Time_window_reference
IV.ESLN.HHE.	ML:4.1	0.1205	0.44	AML	other	m	2020-12-31T20:58:15.35
IV.ESML.HHN.	ML:4.0	0.09695	1.24	AML	other	m	2020-12-31T20:58:15.82
IV.ESML.HHE.	ML:3.9	0.07325	0.66	AML	other	m	2020-12-31T20:58:16.21
IV.ESLN.HHN.	ML:3.9	0.08435	0.54	AML	other	m	2020-12-31T20:58:16.55
IV.ENIC.HHE.	ML:4.1	0.1235	0.96	AML	other	m	2020-12-31T20:58:16.11
IV.ENIC.HNE.	ML:4.1	0.1185	1.22	AML	other	m	2020-12-31T20:58:16.12
IV.EMCN.HNN.	ML:3.8	0.04975	1.22	AML	other	m	2020-12-31T20:58:16.93
IV.EMCN.HHN.	ML:3.8	0.04995	1.2	AML	other	m	2020-12-31T20:58:16.93
IV.EVRN.HHN.	ML:3.7	0.03645	0.68	AML	other	m	2020-12-31T20:58:17.18
IV.EVRN.HNN.	ML:3.8	0.04295	0.8	AML	other	m	2020-12-31T20:58:17.19
IV.ENIC.HNN.	ML:4.0	0.1043	0.4	AML	other	m	2020-12-31T20:58:17.39
IV.ENIC.HHN.	ML:3.9	0.0838	0.58	AML	other	m	2020-12-31T20:58:17.80
IV.EMCN.HNE.	ML:3.8	0.044349999999999994	0.54	AML	other	m	2020-12-31T20:58:17.80
IV.EMCN.HHE.	ML:3.8	0.04235	0.52	AML	other	m	2020-12-31T20:58:17.80
IV.EMSG.HHN.	ML:4.0	0.06794999999999998	0.56	AML	other	m	2020-12-31T20:58:18.53
IV.EPOZ.HHN.	ML:3.7	0.030100000000000002	0.7	AML	other	m	2020-12-31T20:58:20.44
IV.ECTS.HHN.	ML:3.6	0.01905	1.14	AML	other	m	2020-12-31T20:58:20.83
IV.EPOZ.HHE.	ML:3.9	0.052399999999999995	1.26	AML	other	m	2020-12-31T20:58:21.77
IV.EPZF.HHN.	ML:4.0	0.06795	0.42	AML	other	m	2020-12-31T20:58:21.38
IV.EPZF.HHE.	ML:4.0	0.061950000000000005	0.4	AML	other	m	2020-12-31T20:58:22.31
IV.HLNI.HHN.	ML:3.4	0.009465	0.96	AML	other	m	2020-12-31T20:58:23.52
IV.EVRN.HNE.	ML:3.6	0.028050000000000002	1.4	AML	other	m	2020-12-31T20:58:23.11
IV.EVRN.HHE.	ML:3.6	0.0286	0.94	AML	other	m	2020-12-31T20:58:23.13
IV.EMSG.HHE.	ML:4.0	0.06284999999999999	0.4	AML	other	m	2020-12-31T20:58:23.53
IV.HLNI.HHE.	ML:3.7	0.01825	0.9	AML	other	m	2020-12-31T20:58:23.12
IV.HCRL.HHE.	ML:3.9	0.0223	1.14	AML	other	m	2020-12-31T20:58:24.71
IV.HCRL.HHN.	ML:3.7	0.01565	0.52	AML	other	m	2020-12-31T20:58:25.47
IV.HAGA.HHE.	ML:3.9	0.023049999999999998	0.42	AML	other	m	2020-12-31T20:58:25.56
IV.AIO.HHN.	ML:3.3	0.0065899999999999995	0.94	AML	other	m	2020-12-31T20:58:25.60
IV.MUCR.HHE.	ML:3.8	0.0205	1.14	AML	other	m	2020-12-31T20:58:25.64
IV.GALF.HNE.	ML:3.2	0.0069299999999999995	0.5	AML	other	m	2020-12-31T20:58:26.66
IV.GALF.HHE.	ML:4.2	0.054349999999999996	0.46	AML	other	m	2020-12-31T20:58:26.68
IV.MUCR.HHN.	ML:3.6	0.013149999999999998	0.42	AML	other	m	2020-12-31T20:58:26.82
IV.GALF.HHN.	ML:4.1	0.049	0.4	AML	other	m	2020-12-31T20:58:27.35
IV.AIO.HHE.	ML:3.4	0.00808	0.38	AML	other	m	2020-12-31T20:58:27.40
IV.ECTS.HHE.	ML:3.3	0.010899999999999998	1.12	AML	other	m	2020-12-31T20:58:28.05
IV.GALF.HNN.	ML:3.2	0.006435000000000001	0.84	AML	other	m	2020-12-31T20:58:28.54
IV.SSY.HHE.	ML:4.6	0.0777	0.34	AML	other	m	2020-12-31T20:58:28.92
IV.MSFR.HHE.	ML:3.3	0.00478	1.26	AML	other	m	2020-12-31T20:58:29.25
IV.HAGA.HHN.	ML:3.6	0.010575	0.54	AML	other	m	2020-12-31T20:58:30.68
IV.SSY.HHN.	ML:4.7	0.116	1.64	AML	other	m	2020-12-31T20:58:31.05
IV.MSFR.HHN.	ML:3.4	0.0061400000000000005	0.56	AML	other	m	2020-12-31T20:58:31.07
IV.MPNC.HHE.	ML:3.6	0.008629999999999999	1.44	AML	other	m	2020-12-31T20:58:32.26
IV.RAFF.HHN.	ML:3.5	0.0044599999999999996	0.84	AML	other	m	2020-12-31T20:58:34.49
IV.HAVL.HHE.	ML:4.4	0.031799999999999995	0.4	AML	other	m	2020-12-31T20:58:35.47
IV.HAVL.HHN.	ML:4.4	0.033049999999999996	0.28	AML	other	m	2020-12-31T20:58:35.61
IV.MPNC.HHN.	ML:3.8	0.01255	1.32	AML	other	m	2020-12-31T20:58:36.71
IV.RAFF.HHE.	ML:3.5	0.0050999999999999995	0.48	AML	other	m	2020-12-31T20:58:36.13
IV.CAGR.HHN.	ML:3.7	0.01735	0.48	AML	other	m	2020-12-31T20:58:36.44
IV.HMDC.HHE.	ML:4.2	0.023100000000000002	1.6	AML	other	m	2020-12-31T20:58:36.92
IV.HMDC.HNE.	ML:4.2	0.0221	1.62	AML	other	m	2020-12-31T20:58:36.93
IV.CAGR.HHE.	ML:3.9	0.024	1.24	AML	other	m	2020-12-31T20:58:37.10
IV.MILZ.HHN.	ML:3.7	0.008505	0.4	AML	other	m	2020-12-31T20:58:37.67
IV.MILZ.HHE.	ML:3.8	0.011265	0.38	AML	other	m	2020-12-31T20:58:37.68
IV.ACATE.HNN.	ML:3.7	0.006835	1.02	AML	other	m	2020-12-31T20:58:38.07
IV.ACATE.EHN.	ML:3.7	0.007005000000000001	0.42	AML	other	m	2020-12-31T20:58:38.08
IV.IVPL.HHN.	ML:3.9	0.010230000000000001	0.46	AML	other	m	2020-12-31T20:58:38.47
IV.HMDC.HHN.	ML:4.0	0.01375	0.66	AML	other	m	2020-12-31T20:58:38.34
IV.HMDC.HNN.	ML:4.0	0.012235	0.66	AML	other	m	2020-12-31T20:58:38.35
IV.MSRU.HHE.	ML:3.6	0.00484	1.48	AML	other	m	2020-12-31T20:58:39.81
IV.ISPIC.HNE.	ML:4.2	0.0141	1.3	AML	other	m	2020-12-31T20:58:39.86
IV.ISPIC.HNN.	ML:4.1	0.011965	1.52	AML	other	m	2020-12-31T20:58:40.12
IV.SICLA.EHN.	ML:3.3	0.0021950000000000003	1.48	AML	other	m	2020-12-31T20:58:40.88
IV.PLLN.EHE.	ML:4.0	0.013100000000000002	0.56	AML	other	m	2020-12-31T20:58:40.70
IV.PLLN.EHN.	ML:4.0	0.0145	1.26	AML	other	m	2020-12-31T20:58:40.72
IV.IVPL.HHE.	ML:3.8	0.008065	1	AML	other	m	2020-12-31T20:58:40.30
IV.MSRU.HHN.	ML:3.4	0.0031799999999999997	1.2	AML	other	m	2020-12-31T20:58:40.22
IV.CSLB.HHN.	ML:3.3	0.00253	1.12	AML	other	m	2020-12-31T20:58:40.93
IV.HPAC.HHE.	ML:4.0	0.010254999999999998	1	AML	other	m	2020-12-31T20:58:42.15
IV.GIB.HHN.	ML:4.0	0.011349999999999999	0.5	AML	other	m	2020-12-31T20:58:42.41
IV.GIB.HHE.	ML:4.0	0.011	1.42	AML	other	m	2020-12-31T20:58:42.18
IV.SICLA.EHE.	ML:3.5	0.0033250000000000003	1.5	AML	other	m	2020-12-31T20:58:43.12
MN.CEL.HHN.	ML:3.3	0.001885	1.28	AML	other	m	2020-12-31T20:58:43.32
MN.CEL.HNN.	ML:3.3	0.001915	1.28	AML	other	m	2020-12-31T20:58:43.33
IV.PETRA.HHE.	ML:3.4	0.00349	0.46	AML	other	m	2020-12-31T20:58:44.07
IV.CPTP.HHE.	ML:3.1	0.0018050000000000002	1.44	AML	other	m	2020-12-31T20:58:44.22
IV.ACATE.HNE.	ML:3.8	0.008725000000000002	0.32	AML	other	m	2020-12-31T20:58:44.08
IV.ACATE.EHE.	ML:3.8	0.00836	0.3	AML	other	m	2020-12-31T20:58:44.09
IV.HPAC.HHN.	ML:3.9	0.007845	0.74	AML	other	m	2020-12-31T20:58:44.84
IV.CSLB.HHE.	ML:3.0	0.0013700000000000001	1.04	AML	other	m	2020-12-31T20:58:44.54
IV.IACL.HHE.	ML:4.0	0.008004999999999998	1.58	AML	other	m	2020-12-31T20:58:44.81
IV.SOI.EHN.	ML:3.3	0.001865	0.5	AML	other	m	2020-12-31T20:58:44.58
IV.SOI.EHE.	ML:3.3	0.0017549999999999998	1.56	AML	other	m	2020-12-31T20:58:45.80
MN.CEL.HHE.	ML:3.2	0.001565	0.56	AML	other	m	2020-12-31T20:58:46.01
MN.CEL.HNE.	ML:3.2	0.0015899999999999998	0.58	AML	other	m	2020-12-31T20:58:46.01
IV.IFIL.HHE.	ML:4.4	0.02175	0.34	AML	other	m	2020-12-31T20:58:46.57
IV.ILOS.HHN.	ML:4.1	0.015550000000000001	0.42	AML	other	m	2020-12-31T20:58:46.44
IV.RESU.HHN.	ML:3.3	0.00273	1.44	AML	other	m	2020-12-31T20:58:46.74
IV.IFIL.HHN.	ML:4.0	0.008825	0.42	AML	other	m	2020-12-31T20:58:47.08
IV.CPTP.HHN.	ML:3.3	0.00279	0.66	AML	other	m	2020-12-31T20:58:47.49
IV.SCIAR.HHE.	ML:3.4	0.002245	0.8	AML	other	m	2020-12-31T20:58:47.19
IV.IACL.HHN.	ML:3.8	0.005875	0.5	AML	other	m	2020-12-31T20:58:48.32
IV.SCIAR.HNN.	ML:3.6	0.0032749999999999997	0.82	AML	other	m	2020-12-31T20:58:48.85
IV.SCIAR.HHN.	ML:3.6	0.0034699999999999996	0.82	AML	other	m	2020-12-31T20:58:48.85
IV.SCIAR.HNE.	ML:3.5	0.0025250000000000003	0.58	AML	other	m	2020-12-31T20:58:48.20
IV.ILOS.HHE.	ML:4.0	0.01285	1.34	AML	other	m	2020-12-31T20:58:50.94
IV.JOPP.HHE.	ML:3.3	0.0011600000000000002	0.78	AML	other	m	2020-12-31T20:58:52.11
IV.JOPP.HHN.	ML:3.2	0.001135	0.52	AML	other	m	2020-12-31T20:58:52.73
IV.PETRA.HHN.	ML:3.4	0.00353	0.82	AML	other	m	2020-12-31T20:58:52.50
IV.SOLUN.HHE.	ML:3.4	0.001645	0.52	AML	other	m	2020-12-31T20:58:53.26
IV.ALJA.HHN.	ML:3.2	0.00131	0.9	AML	other	m	2020-12-31T20:58:55.48
IV.CMDO.HHE.	ML:2.7	0.000532	0.42	AML	other	m	2020-12-31T20:58:55.63
IV.RESU.HHE.	ML:3.1	0.001865	0.54	AML	other	m	2020-12-31T20:58:56.77
IV.IST3.HHN.	ML:3.3	0.001495	0.4	AML	other	m	2020-12-31T20:58:57.29
IV.ALJA.HHE.	ML:3.3	0.0018650000000000001	1.22	AML	other	m	2020-12-31T20:58:57.67
IV.PLAC.HHE.	ML:3.5	0.00149	0.74	AML	other	m	2020-12-31T20:58:58.56
IV.PLAC.HNN.	ML:3.5	0.001405	0.76	AML	other	m	2020-12-31T20:58:58.57
IV.IST3.HHE.	ML:3.2	0.0009865	1.5	AML	other	m	2020-12-31T20:58:59.96
IV.CMDO.HHN.	ML:2.9	0.0008395000000000001	0.6	AML	other	m	2020-12-31T20:59:00.65
IV.PLAC.HHN.	ML:3.6	0.0017549999999999998	0.72	AML	other	m	2020-12-31T20:59:01.49
IV.PLAC.HNE.	ML:3.6	0.00172	0.72	AML	other	m	2020-12-31T20:59:01.50
IV.SCIAC.HHE.	ML:3.3	0.000815	1.34	AML	other	m	2020-12-31T20:59:01.72
IV.SLCN.HNN.	ML:3.4	0.00032	1.34	AML	other	m	2020-12-31T20:59:03.94
IV.SLCN.HHN.	ML:3.4	0.0002755	0.44	AML	other	m	2020-12-31T20:59:03.49
IV.SOLUN.HHN.	ML:3.5	0.00177	1.06	AML	other	m	2020-12-31T20:59:03.92
IV.SLCN.HNE.	ML:3.5	0.000389	1.52	AML	other	m	2020-12-31T20:59:03.80
IV.SLCN.HHE.	ML:3.6	0.0004115	1.52	AML	other	m	2020-12-31T20:59:03.80
IV.SCIAC.HHN.	ML:3.2	0.0007305	1.1	AML	other	m	2020-12-31T20:59:04.66
IV.AMUR.HHN.	ML:3.2	0.000116	1.36	AML	other	m	2020-12-31T20:59:05.74
IV.GRI.EHN.	ML:3.4	0.0008945	1.52	AML	other	m	2020-12-31T20:59:06.18
IV.GRI.EHE.	ML:3.4	0.0009025	1.56	AML	other	m	2020-12-31T20:59:07.19
GE.MATE.HHN.	ML:3.2	0.0001348	0.42	AML	other	m	2020-12-31T20:59:08.60
IV.CRJA.HHN.	ML:3.6	0.0015249999999999999	0.54	AML	other	m	2020-12-31T20:59:09.27
IV.CET2.HHE.	ML:3.6	0.0009744999999999999	0.78	AML	other	m	2020-12-31T20:59:11.02
IV.CET2.HHN.	ML:3.7	0.0013199999999999998	0.5	AML	other	m	2020-12-31T20:59:15.10
IV.SPS2.HHN.	ML:2.9	0.0001875	0.76	AML	other	m	2020-12-31T20:59:15.90
IV.MBFT.HHN.	ML:3.1	0.000447	1.2	AML	other	m	2020-12-31T20:59:15.95
IV.MBFT.HHE.	ML:3.2	0.0005805000000000001	0.84	AML	other	m	2020-12-31T20:59:16.46
IV.SPS2.HHE.	ML:3.0	0.00023099999999999998	1.52	AML	other	m	2020-12-31T20:59:18.08
MN.WDD.HHN.	ML:3.7	0.00135	0.76	AML	other	m	2020-12-31T20:59:18.72
MN.TIP.HHE.	ML:3.0	0.000214	0.96	AML	other	m	2020-12-31T20:59:18.51
MN.TIP.HNE.	ML:3.0	0.000221	0.7	AML	other	m	2020-12-31T20:59:20.01
MN.WDD.HHE.	ML:3.8	0.00185	1.32	AML	other	m	2020-12-31T20:59:20.94
IV.CELI.HHN.	ML:3.2	0.00035999999999999997	0.94	AML	other	m	2020-12-31T20:59:20.76
IV.CELI.HNN.	ML:3.2	0.0003765	0.96	AML	other	m	2020-12-31T20:59:20.76
IV.CELI.HNE.	ML:3.3	0.000461	1.12	AML	other	m	2020-12-31T20:59:21.72
IV.CELI.HHE.	ML:3.3	0.000454	1.14	AML	other	m	2020-12-31T20:59:21.73
MN.TIP.HNN.	ML:3.0	0.0002455	0.7	AML	other	m	2020-12-31T20:59:24.83
MN.TIP.HHN.	ML:3.0	0.00025	0.7	AML	other	m	2020-12-31T20:59:24.84
IV.NOCI.HHN.	ML:3.3	0.0001178	1.1	AML	other	m	2020-12-31T20:59:25.03
IV.CRJA.HHE.	ML:3.7	0.00202	1.14	AML	other	m	2020-12-31T20:59:25.31
IV.TDS.HHE.	ML:3.0	0.00020800000000000001	0.42	AML	other	m	2020-12-31T20:59:32.28
IV.TDS.HHN.	ML:3.1	0.00022549999999999998	1.26	AML	other	m	2020-12-31T20:59:32.89
IV.NOCI.HHE.	ML:3.2	0.00009725	0.42	AML	other	m	2020-12-31T20:59:42.24
OT.TAR1.HHE.	ML:3.3	0.000149	0.64	AML	other	m	2020-12-31T20:59:47.94
GE.MATE.HHE.	ML:3.2	0.00011050000000000002	0.44	AML	other	m	2020-12-31T20:59:56.03
OT.TAR1.HHN.	ML:3.3	0.00013575	1.14	AML	other	m	2020-12-31T21:00:00.32
IV.AMUR.HHE.	ML:3.2	0.00009894999999999999	0.66	AML	other	m	2020-12-31T21:00:08.70

TDMT - Time Domain Moment Tensor

Warning: the following TDMT solution has been computed starting from an event location obtained before the preferred one showned at the moment.

TDMT details

Field	Value
Magnitude	3.4
Scalar Moment	1.81892E+21 dyne-cm
Computed depth	12 km
Quality	Ca
Variance Reduction	23.34%
Double Couple	95%
CLVD	5%
ISO	0%
Model used	CIA
Mode	manual
Status	reviewed

Moment Tensor Components

Component	Value
Mrr	-9.88E+19
Mtt	-6.502E+20
Mpp	7.49E+20
Mrt	-8.18E+20
Mrp	-1.585E+20
Mtp	1.4557E+21

Nodal Planes

Name	Strike	Dip	Rake
PN1	76	88	-27
PN2	168	63	-177

Fault Plane solution

psmeca (GMT documentation)

14.943 37.666 12 76 88 -27 168 63 -177 1.81892 21 15.443 38.166

TDMT references

More info and references

PDF Solution

Download TDMT soution in PDF format

Station Distribution

TDMT station details

Station	Epicentral Distance (km)	Epicentral Azimuth	Variance Reduction	zcor
AIO	42.4	36.9	30.43%	98
MSFR	51.2	323	51.82%	98
MUCR	42.3	351.8	50.46%	97
SSY	57.6	168.4	14.4%	97
HLNI	35.8	190.1	-0.65%	96
GALF	33.6	278.6	20.58%	97

Fault Plane solutions in the area

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.

Download

Type	Description	Link
QuakeML - small	Event, Origin, FocalMechanism	Download
QuakeML - full	Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude	Download
Waveforms	Seismic signals in miniseed + resp format	Download

Earthquake with magnitude of Mw 3.4 on date 31-12-2020 and time 21:58:09 (Italy) in region 5 km NE Ragalna (CT)