Earthquake 2 km SW Giarre (CT), Magnitude ML 2.7, 24 January 2021 time 12:10:42 (Timezone Italy)

A magnitude ML 2.7 earthquake occured in region: 2 km SW Giarre (CT), on

24-01-2021 11:10:42 (UTC)
24-01-2021 12:10:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7160, 15.1770 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.

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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
Giarre	CT	2	27659	27659
Riposto	CT	3	14838	42497
Sant'Alfio	CT	4	1582	44079
Santa Venerina	CT	5	8592	52671
Mascali	CT	5	14282	66953
Milo	CT	5	1087	68040
Zafferana Etnea	CT	7	9517	77557
Fiumefreddo di Sicilia	CT	9	9623	87180
Piedimonte Etneo	CT	10	3963	91143
Acireale	CT	12	52622	143765
Calatabiano	CT	13	5308	149073
Aci Sant'Antonio	CT	13	17984	167057
Aci Catena	CT	13	29851	196908
Viagrande	CT	14	8563	205471
Trecastagni	CT	14	10910	216381
Linguaglossa	CT	14	5403	221784
Aci Bonaccorsi	CT	14	3524	225308
Pedara	CT	15	14102	239410
Valverde	CT	16	7840	247250
Giardini-Naxos	ME	17	9415	256665
Gaggi	ME	17	3184	259849
San Giovanni la Punta	CT	17	23060	282909
Nicolosi	CT	17	7463	290372
San Gregorio di Catania	CT	18	11966	302338
Taormina	ME	18	10960	313298
Aci Castello	CT	18	18723	332021
Tremestieri Etneo	CT	18	20589	352610
Castelmola	ME	18	1088	353698
Castiglione di Sicilia	CT	19	3215	356913
Mascalucia	CT	19	31958	388871
Sant'Agata li Battiati	CT	19	9479	398350
Gravina di Catania	CT	20	25838	424188
Motta Camastra	ME	20	845	425033
Graniti	ME	20	1492	426525

Municipalities with at least 50000 inhabitants

An earthquake occurred to

12 Km N of Acireale (52622 inhabitants)

25 Km NE of Catania (314555 inhabitants)

60 Km SW of Reggio di Calabria (183035 inhabitants)

63 Km SW of Messina (238439 inhabitants)

74 Km N of Siracusa (122291 inhabitants)

96 Km NE of Ragusa (73313 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

Not available maps for this sismic event.

Felt maps

Not available maps for this sismic event.

Locations history

Type	Magnitude	Date and Time (UTC)	Latitude	Longitude	Depth (km)	Published time (UTC)	Author	Location ID
Bulletin Rev1000	ML 2.7	2021-01-24 11:10:42	37.7165	15.1767	17	2021-07-12 16:55:14	Bollettino Sismico Italiano INGV	91142751
Reviewed Rev200	ML 2.3	2021-01-24 11:10:42	37.746	15.119	11	2021-06-12 07:46:30	Sala Operativa INGV_OE (Catania)	86527751

Preferred location and magnitude until now.

Origin information

Origin

Field	Value
Time (UTC)	2021-01-24 11:10:42 ± 0.11
Latitude	37.7165 ± 0.0045
Longitude	15.1767 ± 0.0080
Depth (km)	17 ± 1 (from location)
Evaluation mode of Origin	manual
Evaluation status of Origin	reviewed
Version	1000 -> BULLETIN-INGV
Event type	earthquake
Origin ID	91142751

Uncertainty

Field	Value
Preferred uncertainty description	uncertainty ellipse
Semi-major axis of confidence ellipse (meter)	718
Semi-minor axis of confidence ellipse (meter)	234
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)	88
Circular confidence region, given by single value of horizontal uncertainty (meter)	720.0
Confidence level of the uncertainty (%)	68

Quality

Field	Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)	143
Number of associated phases, regardless of their use for origin computation	67
Number of defining phases	67
RMS of the travel time residuals of the arrivals used for the origin computation (sec)	0.37
Epicentral distance of station closest to the epicenter (degree)	0.04227
Epicentral distance of station farthest from the epicenter (degree)	1.02073
Number of stations at which the event was observed	38
Number of stations from which data was used for origin computation	38

Magnitudes information

ML:2.3

Field	Value
Value	2.3
Uncertainty	0.2
Num. used stations
Type of magnitude	ML
Reference to an origin	86527751
Agency	INGV
Autore	Sala Operativa INGV_OE (Catania)
Time of creation (UTC)	2021-01-24 11:33:47

ML:2.7

Field	Value
Value	2.7
Uncertainty	0.3
Num. used stations	40
Type of magnitude	ML
Reference to an origin	91142751
Agency	INGV
Autore	Bollettino Sismico Italiano INGV
Time of creation (UTC)	2021-06-12 07:45:48

Picking and Arrival

SCNL	Time	Uncertainty	Polarity	Evaluation_mode	Phase	Azimuth	Distance(km)	Takeoff_angle	Residual	Weight
IV.HPAC.HHN.	2021-01-24T11:11:15.90	0.6	undecidable	manual	S	186	112.4985	93	1.27	27
IV.RAFF.HHN.	2021-01-24T11:11:10.73	0.6	undecidable	manual	S	233	90.243	94	2.03	18
IV.HMDC.HHE.	2021-01-24T11:11:09.80	0.6	undecidable	manual	S	203	90.9423	94	0.92	34
IV.HAVL.HHZ.	2021-01-24T11:11:08.07	0.6	undecidable	manual	S	183	84.0492	94	1	33
IV.SSY.HHN.	2021-01-24T11:11:02.15	0.6	undecidable	manual	S	188	62.6928	96	0.79	37
IV.MSFR.HHE.	2021-01-24T11:11:01.98	0.6	undecidable	manual	S	305	62.1933	96	0.75	38
IV.HPAC.HHN.	2021-01-24T11:11:00.57	0.3	undecidable	manual	P	186	112.4985	93	-0.31	58
IV.CROCE.HHE.	2021-01-24T11:11:00.26	0.3	undecidable	manual	P	210	113.2977	93	-0.74	50
IV.MPNC.HHN.	2021-01-24T11:10:59.12	0.6	undecidable	manual	S	18	50.1165	98	1.07	31
IV.HCRL.HHN.	2021-01-24T11:10:58.49	0.3	undecidable	manual	S	195	49.7169	98	0.55	63
IV.HMDC.HHE.	2021-01-24T11:10:57.40	0.3	undecidable	manual	P	203	90.9423	94	-0.17	62
IV.HAGA.HHE.	2021-01-24T11:10:57.83	0.6	undecidable	manual	S	182	47.9187	99	0.37	44
IV.RAFF.HHN.	2021-01-24T11:10:57.36	0.3	undecidable	manual	P	233	90.243	94	-0.1	63
IV.HLNI.HHZ.	2021-01-24T11:10:57.44	0.6	undecidable	manual	S	213	48.8178	99	-0.27	44
IV.MUCR.HHZ.	2021-01-24T11:10:57.05	0.3	undecidable	manual	S	324	44.9217	100	0.38	65
IV.HAVL.HHZ.	2021-01-24T11:10:56.14	0.1	undecidable	manual	P	183	84.0492	94	-0.38	81
IV.IVPL.HHE.	2021-01-24T11:10:55.91	0.3	undecidable	manual	P	347	75.1692	95	0.76	53
IV.ESCV.HHN.	2021-01-24T11:10:54.47	0.6	undecidable	manual	S	276	31.9458	105	1.19	33
IV.MSRU.HHZ.	2021-01-24T11:10:53.85	0.3	undecidable	manual	P	25	67.2771	96	-0.08	68
IV.MSFR.HHE.	2021-01-24T11:10:53.65	0.3	undecidable	manual	P	305	62.1933	96	0.5	62
IV.ESML.HHZ.	2021-01-24T11:10:52.25	0.6	undecidable	manual	S	247	28.2495	108	-0.11	47
IV.SSY.HHN.	2021-01-24T11:10:52.97	0.1	undecidable	manual	P	188	62.6928	96	-0.26	87
IV.GALF.HHE.	2021-01-24T11:10:52.23	0.3	undecidable	manual	P	269	53.502	98	0.4	65
IV.HCRL.HHN.	2021-01-24T11:10:51.04	0.1	undecidable	manual	P	195	49.7169	98	-0.21	89
IV.AIO.HHZ.	2021-01-24T11:10:51.24	0.6	undecidable	manual	S	10	28.6491	108	-1.22	34
IV.ECZM.HHN.	2021-01-24T11:10:51.00	0.6	undecidable	manual	S	274	23.9538	113	-0.28	46
IV.MPNC.HHN.	2021-01-24T11:10:51.08	0.3	undecidable	manual	P	18	50.1165	98	-0.23	68
IV.HLNI.HHZ.	2021-01-24T11:10:50.48	0.1	undecidable	manual	P	213	48.8178	99	-0.63	79
IV.EMNR.HHZ.	2021-01-24T11:10:50.52	0.6	undecidable	manual	S	310	17.2716	124	0.82	39
IV.MUCR.HHZ.	2021-01-24T11:10:50.50	0.3	undecidable	manual	P	324	44.9217	100	-0.01	71
IV.HAGA.HHE.	2021-01-24T11:10:50.64	0.1	undecidable	manual	P	182	47.9187	99	-0.33	88
IV.EMPL.HHZ.	2021-01-24T11:10:49.18	0.6	undecidable	manual	S	257	18.5703	121	-0.81	38
IV.ENIC.HHZ.	2021-01-24T11:10:49.84	0.3	undecidable	manual	S	235	16.5723	125	0.3	71
IV.ESLN.HHN.	2021-01-24T11:10:49.14	0.6	undecidable	manual	S	262	17.9709	123	-0.71	40
IV.EPIT.HHN.	2021-01-24T11:10:49.75	0.6	undecidable	manual	S	315	14.874	129	0.57	43
IV.ECTS.HHZ.	2021-01-24T11:10:49.68	0.6	undecidable	manual	S	345	18.9699	121	-0.41	46
IV.ESCV.HHN.	2021-01-24T11:10:48.65	0.1	undecidable	manual	P	276	31.9458	105	0.09	95
IV.EVRN.HHN.	2021-01-24T11:10:48.10	0.6	undecidable	manual	S	230	4.6953	161	0.5	45
IV.ESPC.HHN.	2021-01-24T11:10:48.39	0.6	undecidable	manual	S	259	13.3755	133	-0.49	45
IV.EPOZ.HHE.	2021-01-24T11:10:48.55	0.6	undecidable	manual	S	168	5.0949	160	0.92	38
IV.EMFS.HHE.	2021-01-24T11:10:48.54	0.6	undecidable	manual	S	271	15.6732	127	-0.82	39
IV.ESAL.HHE.	2021-01-24T11:10:48.17	0.6	undecidable	manual	S	319	5.6943	157	0.48	45
IV.ESML.HHZ.	2021-01-24T11:10:48.06	0.3	undecidable	manual	P	247	28.2495	108	0.03	73
IV.ECBD.HHN.	2021-01-24T11:10:48.24	0.6	undecidable	manual	S	312	10.5783	141	-0.14	49
IV.EFIU.HHE.	2021-01-24T11:10:48.38	0.6	undecidable	manual	S	20	8.5803	147	0.31	46
IV.EPZF.HHN.	2021-01-24T11:10:48.41	0.3	undecidable	manual	P	293	30.4473	106	0.07	72
IV.ECZM.HHN.	2021-01-24T11:10:47.44	0.3	undecidable	manual	P	274	23.9538	113	0.04	73
IV.EMSG.HHN.	2021-01-24T11:10:47.35	0.1	undecidable	manual	P	300	23.0547	114	0.09	97
IV.ECHR.HHE.	2021-01-24T11:10:47.18	0.3	undecidable	manual	P	262	23.3544	114	-0.14	71
IV.ESVO.HHE.	2021-01-24T11:10:47.59	0.3	undecidable	manual	P	287	21.0678	117	0.59	65
IV.EMFO.HHE.	2021-01-24T11:10:47.68	0.6	undecidable	manual	S	286	7.881	150	-0.28	48
IV.AIO.HHZ.	2021-01-24T11:10:47.92	0.1	positive	manual	P	10	28.6491	108	-0.16	96
IV.EMCN.HHN.	2021-01-24T11:10:46.06	0.3	undecidable	manual	P	303	15.0738	129	-0.15	73
IV.EMNR.HHZ.	2021-01-24T11:10:46.40	0.3	undecidable	manual	P	310	17.2716	124	-0.09	73
IV.EMPL.HHZ.	2021-01-24T11:10:46.15	0.3	undecidable	manual	P	257	18.5703	121	-0.51	66
IV.ENIC.HHZ.	2021-01-24T11:10:46.73	0.3	undecidable	manual	P	235	16.5723	125	0.33	70
IV.ESLN.HHN.	2021-01-24T11:10:46.40	0.3	undecidable	manual	P	262	17.9709	123	-0.18	71
IV.EPIT.HHN.	2021-01-24T11:10:46.16	0.1	undecidable	manual	P	315	14.874	129	-0.03	99
IV.ECTS.HHZ.	2021-01-24T11:10:46.31	0.1	undecidable	manual	P	345	18.9699	121	-0.41	92
IV.EMFO.HHE.	2021-01-24T11:10:45.29	0.1	undecidable	manual	P	286	7.881	150	-0.2	97
IV.ECBD.HHN.	2021-01-24T11:10:45.59	0.1	undecidable	manual	P	312	10.5783	141	-0.14	98
IV.EFIU.HHE.	2021-01-24T11:10:45.35	0.1	undecidable	manual	P	20	8.5803	147	-0.19	98
IV.EVRN.HHN.	2021-01-24T11:10:45.34	0.1	undecidable	manual	P	230	4.6953	161	0.06	100
IV.ESPC.HHN.	2021-01-24T11:10:45.59	0.1	undecidable	manual	P	259	13.3755	133	-0.43	91
IV.EPOZ.HHE.	2021-01-24T11:10:45.56	0.1	undecidable	manual	P	168	5.0949	160	0.26	95
IV.EMFS.HHE.	2021-01-24T11:10:45.82	0.3	undecidable	manual	P	271	15.6732	127	-0.47	67
IV.ESAL.HHE.	2021-01-24T11:10:45.23	0.1	undecidable	manual	P	319	5.6943	157	-0.1	100

Station Magnitude and Amplitude

SCNL	mag	Generic_amplitude	Period	Type	Category	Unit	Time_window_reference
IV.EVRN.HHN.	ML:3.2	0.0177	0.16	AML	other	m	2021-01-24T11:10:48.34
IV.EVRN.HNN.	ML:3.4	0.025549999999999996	0.2	AML	other	m	2021-01-24T11:10:48.34
IV.EVRN.HHE.	ML:3.4	0.02885	0.22	AML	other	m	2021-01-24T11:10:48.46
IV.EVRN.HNE.	ML:3.3	0.022350000000000002	0.2	AML	other	m	2021-01-24T11:10:48.47
IV.ECTS.HHE.	ML:2.9	0.00466	0.58	AML	other	m	2021-01-24T11:10:50.37
IV.ECTS.HHN.	ML:2.7	0.00346	0.96	AML	other	m	2021-01-24T11:10:50.38
IV.EMCN.HHE.	ML:2.9	0.0065049999999999995	1.38	AML	other	m	2021-01-24T11:10:50.88
IV.EMCN.HNE.	ML:2.9	0.00653	1.38	AML	other	m	2021-01-24T11:10:50.88
IV.EPOZ.HHN.	ML:2.7	0.00471	0.46	AML	other	m	2021-01-24T11:10:51.58
IV.ENIC.HHE.	ML:2.8	0.004935	0.14	AML	other	m	2021-01-24T11:10:51.86
IV.ENIC.HNE.	ML:2.9	0.0058200000000000005	0.16	AML	other	m	2021-01-24T11:10:51.79
IV.AIO.HHN.	ML:2.2	0.0006895	1.22	AML	other	m	2021-01-24T11:10:51.96
IV.ENIC.HHN.	ML:2.8	0.005055	0.62	AML	other	m	2021-01-24T11:10:52.17
IV.EMCN.HNN.	ML:2.8	0.004865	0.38	AML	other	m	2021-01-24T11:10:52.42
IV.EMCN.HHN.	ML:2.8	0.0046	0.38	AML	other	m	2021-01-24T11:10:52.42
IV.ENIC.HNN.	ML:2.8	0.00501	0.98	AML	other	m	2021-01-24T11:10:52.37
IV.EPOZ.HHE.	ML:2.6	0.0038450000000000003	1.18	AML	other	m	2021-01-24T11:10:52.85
IV.ESML.HHN.	ML:2.3	0.0010030000000000002	1.04	AML	other	m	2021-01-24T11:10:53.81
IV.AIO.HHE.	ML:2.0	0.00054	0.9	AML	other	m	2021-01-24T11:10:53.87
IV.ESML.HHE.	ML:2.4	0.00127	0.98	AML	other	m	2021-01-24T11:10:55.67
IV.EMSG.HHN.	ML:2.7	0.002685	0.86	AML	other	m	2021-01-24T11:10:55.59
IV.EPZF.HHN.	ML:2.7	0.00226	0.42	AML	other	m	2021-01-24T11:10:56.38
IV.EPZF.HHE.	ML:2.5	0.001515	0.86	AML	other	m	2021-01-24T11:10:58.79
IV.EMSG.HHE.	ML:2.8	0.0031950000000000004	0.58	AML	other	m	2021-01-24T11:10:58.92
IV.HCRL.HHN.	ML:2.3	0.0004994999999999999	0.42	AML	other	m	2021-01-24T11:10:59.11
IV.MUCR.HHE.	ML:2.4	0.0007564999999999999	0.72	AML	other	m	2021-01-24T11:10:59.05
IV.MPNC.HHN.	ML:2.4	0.0006925	1.1	AML	other	m	2021-01-24T11:10:59.30
IV.MPNC.HHE.	ML:2.3	0.0005925	0.42	AML	other	m	2021-01-24T11:11:00.20
IV.HCRL.HHE.	ML:2.3	0.0005185	0.54	AML	other	m	2021-01-24T11:11:00.50
IV.HLNI.HHE.	ML:2.0	0.000262	1.48	AML	other	m	2021-01-24T11:11:01.21
IV.MUCR.HHN.	ML:2.2	0.000496	0.7	AML	other	m	2021-01-24T11:11:01.92
IV.HLNI.HHN.	ML:2.0	0.00027150000000000004	0.78	AML	other	m	2021-01-24T11:11:03.12
IV.GALF.HHE.	ML:2.5	0.0007224999999999999	0.8	AML	other	m	2021-01-24T11:11:03.56
IV.SSY.HHE.	ML:2.8	0.0011200000000000001	0.86	AML	other	m	2021-01-24T11:11:05.83
IV.GALF.HHN.	ML:2.4	0.0006965	0.8	AML	other	m	2021-01-24T11:11:06.33
IV.HAVL.HHN.	ML:2.8	0.000909	0.3	AML	other	m	2021-01-24T11:11:08.69
IV.HAVL.HHE.	ML:2.8	0.000756	0.78	AML	other	m	2021-01-24T11:11:09.84
IV.HMDC.HHN.	ML:2.6	0.000444	0.7	AML	other	m	2021-01-24T11:11:10.00
IV.HMDC.HHE.	ML:2.5	0.0003715	0.92	AML	other	m	2021-01-24T11:11:10.02
IV.SSY.HHN.	ML:3.0	0.0018599999999999999	0.66	AML	other	m	2021-01-24T11:11:10.37

TDMT - Time Domain Moment Tensor

Not available TDMT solution for this seismic event.

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.

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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 ML 2.7 on date 24-01-2021 and time 12:10:42 (Italy) in region 2 km SW Giarre (CT)