Earthquake 2 km N Preci (PG), Magnitude ML 1.8, 19 January 2021 time 13:23:43 (Timezone Italy)

A magnitude ML 1.8 earthquake occured in region: 2 km N Preci (PG), on

19-01-2021 12:23:43 (UTC)
19-01-2021 13:23:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9, 13.04 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Preci	PG	2	724	724
Visso	MC	6	1107	1831
Sellano	PG	9	1079	2910
Castelsantangelo sul Nera	MC	10	281	3191
Ussita	MC	10	444	3635
Monte Cavallo	MC	11	145	3780
Norcia	PG	13	4957	8737
Cerreto di Spoleto	PG	13	1075	9812
Fiordimonte	MC	16	202	10014
Pieve Torina	MC	16	1458	11472
Fiastra	MC	18	559	12031
Acquacanina	MC	19	121	12152
Pievebovigliana	MC	19	866	13018
Bolognola	MC	19	142	13160

Municipalities with at least 50000 inhabitants

An earthquake occurred to

28 Km E of Foligno (57155 inhabitants)

49 Km NE of Terni (111501 inhabitants)

58 Km E of Perugia (166134 inhabitants)

61 Km W of Teramo (54892 inhabitants)

68 Km NW of L'Aquila (69753 inhabitants)

89 Km SW of Ancona (100861 inhabitants)

93 Km NE of Viterbo (67173 inhabitants)

Recent and historical Seismicity

Not available maps for this sismic event.

Seismic hazard

Not available maps for this sismic event.

Shakemap

Not available maps for this sismic event.

Felt maps

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.

Locations history

Type	Magnitude	Date and Time (UTC)	Latitude	Longitude	Depth (km)	Published time (UTC)	Author	Location ID
Reviewed Rev100	ML 1.8	2021-01-19 12:23:43	42.9	13.04	10	2021-01-19 12:42:28	Sala Sismica INGV-Roma	86378401

Preferred location and magnitude until now.

Origin information

Origin

Field	Value
Time (UTC)	2021-01-19 12:23:43 ± 0.06
Latitude	42.90 ± 0.00
Longitude	13.04 ± 0.00
Depth (km)	10 ± 0 (from location)
Evaluation mode of Origin	manual
Evaluation status of Origin	reviewed
Version	100 -> SURVEY-INGV
Event type	earthquake
Origin ID	86378401

Uncertainty

Field	Value
Preferred uncertainty description	uncertainty ellipse
Semi-major axis of confidence ellipse (meter)	403
Semi-minor axis of confidence ellipse (meter)	340
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)	27
Circular confidence region, given by single value of horizontal uncertainty (meter)	400
Confidence level of the uncertainty (%)	68

Quality

Field	Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)	49
Number of associated phases, regardless of their use for origin computation	50
Number of defining phases	34
RMS of the travel time residuals of the arrivals used for the origin computation (sec)	0.26
Epicentral distance of station closest to the epicenter (degree)	0
Epicentral distance of station farthest from the epicenter (degree)	0.43977
Number of stations at which the event was observed	31
Number of stations from which data was used for origin computation	17

Magnitude information

ML:1.8

Field	Value
Value	1.8
Uncertainty	0.3
Num. used stations	64
Type of magnitude	ML
Reference to an origin	86378401
Agency	INGV
Autore	Sala Sismica INGV-Roma
Time of creation (UTC)	2021-01-19 12:42:28

Picking and Arrival

SCNL	Time	Uncertainty	Polarity	Evaluation_mode	Phase	Azimuth	Distance	Takeoff_angle	Residual	Weight
IV.FIR.HHZ.	2021-01-19T12:24:35.92	3.0	undecidable	manual	Sg				14.99	0
OT.TAR1.HHZ.	2021-01-19T12:24:35.07	3.0	positive	manual	Pg				10.79	0
IV.CADC.HNZ.	2021-01-19T12:24:31.56	3.0	undecidable	manual	Pg				16.51	0
IV.PTRJ.HNZ.	2021-01-19T12:24:31.50	3.0	undecidable	manual	Sg				4.61	0
IV.MNTV.HNZ.	2021-01-19T12:24:23.79	3.0	undecidable	manual	Pg				14.16	0
IV.FOSV.EHZ.	2021-01-19T12:24:15.52	3.0	undecidable	manual	Sg				0.93	0
IV.PE3.EHZ.	2021-01-19T12:24:10.78	3.0	undecidable	manual	Sn				-9.1	0
IV.CESX.HHZ.	2021-01-19T12:23:59.44	1.0	undecidable	manual	S	229	0.4398	50	0.29	22
IV.CPGN.EHZ.	2021-01-19T12:23:58.03	3.0	undecidable	manual	Pg				4.81	0
IV.RM33.HNZ.	2021-01-19T12:23:58.67	0.3	undecidable	manual	S	161	0.411	50	0.37	66
IV.MOMA.HHZ.	2021-01-19T12:23:57.12	0.6	undecidable	manual	S	255	0.3552	50	0.48	44
IV.PIEI.HHZ.	2021-01-19T12:23:57.69	3.0	negative	manual	Pg				6.68	0
IV.MF5.EHZ.	2021-01-19T12:23:56.17	0.1	undecidable	manual	S	74	0.3211	50	0.54	86
IV.SMA1.EHZ.	2021-01-19T12:23:56.41	0.6	undecidable	manual	S	141	0.3462	50	0.03	48
IV.SAP2.EHZ.	2021-01-19T12:23:56.37	0.3	undecidable	manual	S	53	0.3301	50	0.48	66
IV.ARVD.HHZ.	2021-01-19T12:23:55.40	3.0	positive	manual	Pg				3.51	0
IV.ASSB.HHZ.	2021-01-19T12:23:55.09	0.3	undecidable	manual	S	297	0.3112	50	-0.25	69
IV.MTRA.EHZ.	2021-01-19T12:23:54.72	0.3	undecidable	manual	S	118	0.2995	50	-0.27	69
IV.LNSS.HHZ.	2021-01-19T12:23:54.80	0.6	undecidable	manual	S	180	0.2968	50	-0.09	48
IV.FIR.HHZ.	2021-01-19T12:23:54.89	3.0	undecidable	manual	Pn				1.82	0
IV.TERO.HHZ.	2021-01-19T12:23:53.16	3.0	undecidable	manual	Pg				3.7	0
IV.MNTT.EHZ.	2021-01-19T12:23:53.02	3.0	negative	manual	Pg				1.35	0
IV.FOSV.EHZ.	2021-01-19T12:23:52.26	3.0	positive	manual	Pg				2.75	0
IV.EL6.EHZ.	2021-01-19T12:23:52.15	3.0	positive	manual	Pg				1.06	0
IV.CSP1.EHZ.	2021-01-19T12:23:52.32	0.3	undecidable	manual	S	32	0.2284	111	-0.51	66
IV.SAP2.EHZ.	2021-01-19T12:23:51.02	0.6	undecidable	manual	P	53	0.3301	50	0.41	44
IV.MOMA.HHZ.	2021-01-19T12:23:51.06	0.6	undecidable	manual	P	255	0.3552	50	0.01	48
IV.MMO1.EHZ.	2021-01-19T12:23:51.82	0.3	undecidable	manual	S	90	0.2122	113	-0.44	68
IV.RM33.HNZ.	2021-01-19T12:23:51.70	0.1	undecidable	manual	P	161	0.411	50	-0.3	89
IV.CESX.HHZ.	2021-01-19T12:23:51.99	1.0	undecidable	manual	P	229	0.4398	50	-0.51	21
IV.MF5.EHZ.	2021-01-19T12:23:50.56	0.1	undecidable	manual	P	74	0.3211	50	0.09	95
IV.SMA1.EHZ.	2021-01-19T12:23:50.62	0.3	undecidable	manual	P	141	0.3462	50	-0.27	68
IV.MC2.EHZ.	2021-01-19T12:23:49.14	0.3	undecidable	manual	S	84	0.1115	129	0.23	72
IV.MTRA.EHZ.	2021-01-19T12:23:49.76	0.1	undecidable	manual	P	118	0.2995	50	-0.33	91
IV.ASSB.HHZ.	2021-01-19T12:23:49.84	0.6	undecidable	manual	P	297	0.3112	50	-0.46	44
IV.CESI.HHZ.	2021-01-19T12:23:49.95	0.1	undecidable	manual	S	317	0.143	122	0.05	99
IV.LNSS.HHZ.	2021-01-19T12:23:49.85	0.1	undecidable	manual	P	180	0.2968	50	-0.18	94
IV.MURB.HHZ.	2021-01-19T12:23:49.49	3.0	undecidable	manual	P				0.94	0
IV.FDMO.HHZ.	2021-01-19T12:23:49.61	0.1	undecidable	manual	S	15	0.1421	122	-0.25	95
IV.MMO1.EHZ.	2021-01-19T12:23:48.29	0.1	undecidable	manual	P	90	0.2122	113	-0.23	95
IV.CSP1.EHZ.	2021-01-19T12:23:48.54	0.1	undecidable	manual	P	32	0.2284	111	-0.31	93
IV.NRCA.HNZ.	2021-01-19T12:23:48.26	0.1	undecidable	manual	S	139	0.0863	136	0.07	100
IT.MTCL.HGZ.	2021-01-19T12:23:48.40	0.3	undecidable	manual	S	344	0.098	132	-0.12	74
IV.CESI.HHZ.	2021-01-19T12:23:47.32	0.1	undecidable	manual	P	317	0.143	122	0.17	97
IV.FDMO.HHZ.	2021-01-19T12:23:47.07	0.1	undecidable	manual	P	15	0.1421	122	-0.06	99
IV.FEMA.HNZ.	2021-01-19T12:23:47.98	0.3	undecidable	manual	S	8	0.063	145	0.36	71
IV.NRCA.HNZ.	2021-01-19T12:23:46.40	0.1	positive	manual	P	139	0.0863	136	0.23	97
IT.MTCL.HGZ.	2021-01-19T12:23:46.47	0.1	undecidable	manual	P	344	0.098	132	0.11	99
IV.MC2.EHZ.	2021-01-19T12:23:46.80	0.1	undecidable	manual	P	84	0.1115	129	0.22	96
IV.FEMA.HNZ.	2021-01-19T12:23:46.12	0.1	undecidable	manual	P	8	0.063	145	0.29	96

Station Magnitude and Amplitude

SCNL	mag	Generic_amplitude	Period	Type	Category	Unit	Time_window_reference
IV.FEMA.HNN.	ML:0	0.0015363275	0.1792	AML	other	m	2021-01-19T12:23:48.25
IV.NRCA.HHN.	ML:2.6	0.005015	0.12	AML	other	m	2021-01-19T12:23:48.43
IV.NRCA.HNN.	ML:2.6	0.00488	0.12	AML	other	m	2021-01-19T12:23:48.44
IV.NRCA.HHE.	ML:2.3	0.002574972	0.096	AML	other	m	2021-01-19T12:23:48.51
IV.NRCA.HNE.	ML:2.2	0.002260811	0.096	AML	other	m	2021-01-19T12:23:48.51
IV.FEMA.HNE.	ML:0	0.001767764	0.1984	AML	other	m	2021-01-19T12:23:49.48
IV.FDMO.HHN.	ML:1.8	0.000677	0.22	AML	other	m	2021-01-19T12:23:49.85
IV.ASSB.HHN.	ML:0	0.0001651812	0.16	AML	other	m	2021-01-19T12:23:50.46
IV.FDMO.HHE.	ML:1.9	0.0008057036	0.16	AML	other	m	2021-01-19T12:23:49.90
IV.CESI.HHE.	ML:2.2	0.00152	0.14	AML	other	m	2021-01-19T12:23:50.16
IV.CESI.HNE.	ML:2.2	0.00153	0.12	AML	other	m	2021-01-19T12:23:50.10
IV.CESI.HHN.	ML:2.2	0.00159	0.26	AML	other	m	2021-01-19T12:23:50.10
IV.CESI.HNN.	ML:2.2	0.001545	0.46	AML	other	m	2021-01-19T12:23:50.47
IV.CSP1.EHE.	ML:2	0.00063668885	0.1216	AML	other	m	2021-01-19T12:23:53.60
IV.CSP1.EHN.	ML:2	0.00063981355	0.48	AML	other	m	2021-01-19T12:23:53.14
IV.EL6.EHE.	ML:1.7	0.000128	1.6	AML	other	m	2021-01-19T12:23:54.14
IV.MTRA.EHN.	ML:1.7	0.000224	1.54	AML	other	m	2021-01-19T12:23:56.09
IV.MTRA.EHE.	ML:1.8	0.000258	0.16	AML	other	m	2021-01-19T12:23:56.16
IV.MF5.EHN.	ML:1.8	0.0002465	0.32	AML	other	m	2021-01-19T12:23:56.40
IV.LNSS.HHN.	ML:1.7	0.000237	0.14	AML	other	m	2021-01-19T12:23:56.65
IV.LNSS.HHE.	ML:1.6	0.0001845	0.14	AML	other	m	2021-01-19T12:23:56.74
IV.MF5.EHE.	ML:1.8	0.0002545874	0.1984	AML	other	m	2021-01-19T12:23:57.37
IV.ASSB.HHE.	ML:0	0.00016140615	0.096	AML	other	m	2021-01-19T12:23:56.99
IV.SAP2.EHN.	ML:2.3	0.0007822793	0.1792	AML	other	m	2021-01-19T12:23:58.30
IV.RM33.HNN.	ML:2.1	0.0003555	0.88	AML	other	m	2021-01-19T12:23:57.58
IV.MOMA.HHN.	ML:1.6	0.000124	0.24	AML	other	m	2021-01-19T12:23:58.31
IV.SAP2.EHE.	ML:1.6	0.0001502537	0.16	AML	other	m	2021-01-19T12:23:57.21
IV.MOMA.HHE.	ML:1.9	0.000273	0.24	AML	other	m	2021-01-19T12:23:58.68
IV.SMA1.EHE.	ML:1.4	8.9629565E-5	0.3392	AML	other	m	2021-01-19T12:24:02.69
IV.SMA1.EHN.	ML:1.3	7.4386095E-5	0.3392	AML	other	m	2021-01-19T12:23:59.40
IV.RM33.EHN.	ML:1.5	8.535E-5	0.28	AML	other	m	2021-01-19T12:23:59.38
IV.FOSV.EHE.	ML:1.4	6.96E-5	0.12	AML	other	m	2021-01-19T12:23:59.76
IV.RM33.EHE.	ML:1.5	0.0001005	0.24	AML	other	m	2021-01-19T12:23:59.97
IV.EL6.EHN.	ML:1.6	0.0001025	0.18	AML	other	m	2021-01-19T12:23:59.96
IV.CESX.HHN.	ML:1.5	8.27E-5	0.28	AML	other	m	2021-01-19T12:24:00.82
IV.CESX.HHE.	ML:1.4	5.825E-5	1.56	AML	other	m	2021-01-19T12:24:00.19
IV.FOSV.EHN.	ML:1.4	6.85E-5	0.66	AML	other	m	2021-01-19T12:24:01.44
IV.MNTT.EHN.	ML:2	0.00026029285	0.2048	AML	other	m	2021-01-19T12:24:03.15
IV.TERO.HHN.	ML:1.4	6.5460385E-5	0.1024	AML	other	m	2021-01-19T12:24:02.84
IV.TERO.HHE.	ML:1.5	7.065419E-5	0.0768	AML	other	m	2021-01-19T12:24:02.88
IV.MNTT.EHE.	ML:2.4	0.00061563815	0.16	AML	other	m	2021-01-19T12:24:04.88
IV.ARVD.HHE.	ML:1.4	3.8901945E-5	0.1216	AML	other	m	2021-01-19T12:24:05.15
IV.ARVD.HHN.	ML:1.3	3.57E-5	0.14	AML	other	m	2021-01-19T12:24:05.29
IV.MURB.HHE.	ML:1.8	0.000134	1.5	AML	other	m	2021-01-19T12:24:07.92
IV.MURB.HHN.	ML:1.7	0.000104717125	0.32	AML	other	m	2021-01-19T12:24:08.76
IV.PIEI.HHE.	ML:1.2	2.2281625E-5	0.16	AML	other	m	2021-01-19T12:24:09.59
IV.PIEI.HHN.	ML:1	1.725E-5	0.96	AML	other	m	2021-01-19T12:24:13.69
IV.RM33.HNE.	ML:2.1	0.000383	1.1	AML	other	m	2021-01-19T12:24:20.03
IV.MURB.HNE.	ML:2	0.00023252395	1.4144	AML	other	m	2021-01-19T12:24:07.93
IV.MURB.HNN.	ML:2	0.0001983253	1.856	AML	other	m	2021-01-19T12:23:58.55
IV.MTRA.HNE.	ML:1.8	0.0002690318	0.16	AML	other	m	2021-01-19T12:23:56.16
IV.MTRA.HNN.	ML:1.7	0.0002121594	0.3712	AML	other	m	2021-01-19T12:23:55.98
IV.LNSS.HNE.	ML:1.8	0.00024639613	11.1424	AML	other	m	2021-01-19T12:23:49.43
IV.LNSS.HNN.	ML:1.7	0.0002159871	0.1408	AML	other	m	2021-01-19T12:23:56.65
IV.MOMA.HNE.	ML:1.9	0.000273225	0.2496	AML	other	m	2021-01-19T12:23:58.68
IV.MOMA.HNN.	ML:1.7	0.0001714187	1.1008	AML	other	m	2021-01-19T12:23:57.20
IV.TERO.HNE.	ML:1.9	0.00016494315	2.2208	AML	other	m	2021-01-19T12:23:52.38
IV.TERO.HNN.	ML:1.9	0.00017716795	0.6656	AML	other	m	2021-01-19T12:23:53.18
IV.FIR.HNE.	ML:3	0.0003510025	0.0704	AML	other	m	2021-01-19T12:24:45.83
IV.FIR.HNN.	ML:2.9	0.00032107175	0.0704	AML	other	m	2021-01-19T12:24:45.02
IV.FIR.HHE.	ML:3	0.0003758334	0.064	AML	other	m	2021-01-19T12:24:45.83
IV.FIR.HHN.	ML:2.9	0.00034168155	0.0832	AML	other	m	2021-01-19T12:24:45.02
IV.CPGN.EHE.	ML:1.9	5.76332805E-5	5.184	AML	other	m	2021-01-19T12:24:48.08
IV.CPGN.EHN.	ML:2	7.048696E-5	3.6416	AML	other	m	2021-01-19T12:24:59.48

TDMT - Time Domain Moment Tensor

Not available TDMT solution for this seismic event.

Focal Mechanism in the area

Not available maps for this sismic event.

Download

Type	Description	Link
QuakeML - small	Event, Origin, FocalMechanism	Download
QuakeML - full	Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude	Download

Earthquake with magnitude of ML 1.8 on date 19-01-2021 and time 13:23:43 (Italy) in region 2 km N Preci (PG)

Municipalities within 20 km from the epicenter

Municipalities with at least 50000 inhabitants

The earthquake effects in MCS scale as obtained from the compiled questionnaire

Origin

Uncertainty

Quality

ML:1.8