Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 04-09-2022 and time 19:51:18 (UTC) in region Trevi (PG)

A magnitude ML 1.2 earthquake occured in region: Trevi (PG), on

  • 04-09-2022 19:51:18 (UTC)
  • 04-09-2022 21:51:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8770, 12.7460 at 9 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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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Trevi PG 0 8469 8469
Campello sul Clitunno PG 7 2442 10911
Montefalco PG 8 5679 16590
Castel Ritaldi PG 8 3278 19868
Foligno PG 9 57155 77023
Bevagna PG 13 5081 82104
Spello PG 14 8645 90749
Giano dell'Umbria PG 15 3846 94595
Sellano PG 15 1079 95674
Vallo di Nera PG 15 364 96038
Cerreto di Spoleto PG 15 1075 97113
Gualdo Cattaneo PG 16 6155 103268
Spoleto PG 16 38218 141486
Sant'Anatolia di Narco PG 18 564 142050
Cannara PG 19 4305 146355
Scheggino PG 20 461 146816

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km SE of Foligno (57155 inhabitants)
36 Km N of Terni (111501 inhabitants)
39 Km SE of Perugia (166134 inhabitants)
73 Km NE of Viterbo (67173 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
82 Km W of Teramo (54892 inhabitants)
96 Km SE of Arezzo (99543 inhabitants)
97 Km N of Guidonia Montecelio (88673 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.2 2022-09-04
19:51:18		 42.8773 12.7458 9 2022-09-04
20:00:22		 Sala Sismica INGV-Roma 109343401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-04 19:51:18 ± 0.05
Latitude 42.8773 ± 0.0027
Longitude 12.7458 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 109343401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 331
Semi-minor axis of confidence ellipse (meter) 190
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 293
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.53420
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 20
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 109343401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-04 20:00:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CELB.HHZ. 2022-09-04T19:51:52.85 3.0 negative manual Pn 1.68 0
IV.CPGN.EHZ. 2022-09-04T19:51:49.18 3.0 undecidable manual S -3.74 0
IV.MF5.EHZ. 2022-09-04T19:51:38.71 0.6 undecidable manual S 78 59.2962 50 1.46 27
IV.SSFR.HHZ. 2022-09-04T19:51:38.83 3.0 undecidable manual S -0.07 0
IV.EL6.EHZ. 2022-09-04T19:51:37.63 0.3 undecidable manual S 30 57.7977 50 0.76 57
IV.FOSV.EHZ. 2022-09-04T19:51:34.01 0.3 undecidable manual S 2 46.3203 50 0.21 68
IV.CSP1.EHZ. 2022-09-04T19:51:33.46 0.6 undecidable manual S 57 44.2224 50 0.23 46
IV.SNTG.HHZ. 2022-09-04T19:51:33.38 0.3 undecidable manual S 21 44.7219 50 0 72
IV.PIEI.HHZ. 2022-09-04T19:51:32.49 3.0 undecidable manual P 0.14 0
IV.LNSS.HHZ. 2022-09-04T19:51:31.73 0.3 undecidable manual S 142 38.7279 50 -0.06 72
IV.ATCC.EHZ. 2022-09-04T19:51:31.12 0.6 undecidable manual S 346 35.2425 50 0.29 46
IV.ARRO.EHZ. 2022-09-04T19:51:30.64 0.6 undecidable manual S 177 33.1446 50 0.36 45
IV.MF5.EHZ. 2022-09-04T19:51:30.18 1.0 undecidable manual P 78 59.2962 50 0.81 18
IV.FDMO.HHZ. 2022-09-04T19:51:30.01 0.6 undecidable manual S 57 32.8449 50 -0.2 47
IV.SSFR.HHZ. 2022-09-04T19:51:29.68 3.0 positive manual P -0.37 0
IV.EL6.EHZ. 2022-09-04T19:51:29.10 0.6 undecidable manual P 30 57.7977 50 -0.05 46
IV.CESX.HHN. 2022-09-04T19:51:29.93 0.3 undecidable manual S 204 32.5452 50 -0.19 70
IV.NRCA.HHZ. 2022-09-04T19:51:29.38 0.6 undecidable manual S 99 30.3474 50 -0.15 47
IV.RM33.EHZ. 2022-09-04T19:51:29.19 3.0 undecidable manual P -0.18 0
IV.MML1.EHZ. 2022-09-04T19:51:29.61 0.6 undecidable manual S 35 31.9458 50 -0.36 45
IV.FEMA.HNZ. 2022-09-04T19:51:28.37 0.3 undecidable manual S 69 26.4513 110 0.03 74
IV.GAVE.EHZ. 2022-09-04T19:51:27.47 0.6 undecidable manual S 150 23.8539 112 -0.03 49
IV.MMO1.EHZ. 2022-09-04T19:51:27.77 3.0 positive manual P 0.29 0
IT.MTCL.HGZ. 2022-09-04T19:51:27.53 0.6 undecidable manual S 58 24.2535 111 -0.12 48
IV.FOSV.EHZ. 2022-09-04T19:51:27.02 0.1 undecidable manual P 2 46.3203 50 -0.36 88
IV.MURB.HHZ. 2022-09-04T19:51:27.49 3.0 positive manual P -0.2 0
IV.CSP1.EHZ. 2022-09-04T19:51:26.96 0.1 undecidable manual P 57 44.2224 50 -0.09 94
IV.SNTG.HHZ. 2022-09-04T19:51:26.79 0.1 undecidable manual P 21 44.7219 50 -0.35 89
IV.ASSB.HHZ. 2022-09-04T19:51:26.02 0.6 undecidable manual S 339 19.6692 116 -0.14 48
IV.LNSS.HHZ. 2022-09-04T19:51:26.06 0.1 undecidable manual P 142 38.7279 50 -0.15 94
IV.CESI.HHZ. 2022-09-04T19:51:26.05 0.6 undecidable manual S 42 19.1697 116 0.04 50
IV.FDMO.HHZ. 2022-09-04T19:51:25.08 0.1 undecidable manual P 57 32.8449 50 -0.23 93
IV.MOMA.HNZ. 2022-09-04T19:51:25.26 0.6 undecidable manual S 240 16.4724 120 0.06 50
IV.ATCC.EHZ. 2022-09-04T19:51:25.55 1.0 undecidable manual P 346 35.2425 50 -0.12 24
IV.ARRO.EHZ. 2022-09-04T19:51:25.68 0.1 undecidable manual P 177 33.1446 50 0.33 91
IT.GNU.HGZ. 2022-09-04T19:51:25.34 0.3 undecidable manual S 240 16.4724 120 0.15 73
IV.CESX.HHN. 2022-09-04T19:51:25.13 0.1 undecidable manual P 204 32.5452 50 -0.12 95
IV.MML1.EHZ. 2022-09-04T19:51:24.93 0.6 positive manual P 35 31.9458 50 -0.24 47
IV.FEMA.HNZ. 2022-09-04T19:51:24.44 0.1 undecidable manual P 69 26.4513 110 0.21 94
IV.NRCA.HHZ. 2022-09-04T19:51:24.62 0.1 undecidable manual P 99 30.3474 50 -0.3 92
IT.FOPC.HGZ. 2022-09-04T19:51:23.68 0.6 undecidable manual S 341 10.7781 131 0.09 50
IV.GAVE.EHZ. 2022-09-04T19:51:23.68 0.1 undecidable manual P 150 23.8539 112 -0.06 98
IT.MTCL.HGZ. 2022-09-04T19:51:23.79 0.1 undecidable manual P 58 24.2535 111 -0.04 98
IV.ASSB.HHZ. 2022-09-04T19:51:22.88 0.1 positive manual P 339 19.6692 116 -0.09 98
IT.GNU.HGZ. 2022-09-04T19:51:22.57 0.1 undecidable manual P 240 16.4724 120 0.16 97
IV.CESI.HHZ. 2022-09-04T19:51:22.92 0.1 undecidable manual P 42 19.1697 116 0.04 99
IV.MOMA.HNZ. 2022-09-04T19:51:22.37 0.1 undecidable manual P 240 16.4724 120 -0.04 99
IT.FOPC.HGZ. 2022-09-04T19:51:21.55 0.1 undecidable manual P 341 10.7781 131 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:1.2 0.0001325 0.18 AML other m 2022-09-04T19:51:26.40
IV.CESI.HHE. ML:1.2 0.0001285 0.32 AML other m 2022-09-04T19:51:26.61
IV.CESI.HHN. ML:1.3 0.000155 0.46 AML other m 2022-09-04T19:51:26.88
IV.ASSB.HHE. ML:1.3 0.000149 0.18 AML other m 2022-09-04T19:51:27.36
IV.GAVE.EHE. ML:1.6 0.0002265 0.38 AML other m 2022-09-04T19:51:27.97
IV.GAVE.EHN. ML:1.5 0.000206 0.16 AML other m 2022-09-04T19:51:28.98
IV.NRCA.HHN. ML:1.2 0.0000854 0.12 AML other m 2022-09-04T19:51:30.18
IV.FDMO.HHE. ML:1.1 0.000057300000000000004 0.18 AML other m 2022-09-04T19:51:30.44
IV.MML1.EHE. ML:1.0 0.00005035 1.36 AML other m 2022-09-04T19:51:31.16
IV.MML1.EHN. ML:1.1 0.000054999999999999995 0.12 AML other m 2022-09-04T19:51:31.24
IV.NRCA.HHE. ML:1.3 0.00009575 0.16 AML other m 2022-09-04T19:51:31.30
IV.ARRO.EHN. ML:0.8 0.0000281 0.92 AML other m 2022-09-04T19:51:31.98
IV.FDMO.HHN. ML:1.1 0.0000574 0.2 AML other m 2022-09-04T19:51:31.72
IV.ATCC.EHE. ML:1.1 0.0000566 0.78 AML other m 2022-09-04T19:51:32.64
IV.ATCC.EHN. ML:1.1 0.0000496 0.36 AML other m 2022-09-04T19:51:32.85
IV.ARRO.EHE. ML:0.9 0.0000336 0.84 AML other m 2022-09-04T19:51:33.36
IV.LNSS.HHE. ML:1.3 0.00007005 0.4 AML other m 2022-09-04T19:51:34.09
IV.MURB.HHE. ML:1.6 0.0001042 1.68 AML other m 2022-09-04T19:51:34.14
IV.LNSS.HHN. ML:1.3 0.0000632 0.94 AML other m 2022-09-04T19:51:35.48
IV.MMO1.EHE. ML:1.2 0.000045600000000000004 0.94 AML other m 2022-09-04T19:51:36.59
IV.MURB.HHN. ML:1.5 0.00009275 0.98 AML other m 2022-09-04T19:51:36.32
IV.MMO1.EHN. ML:1.2 0.000052 1.06 AML other m 2022-09-04T19:51:36.90
IV.RM33.EHN. ML:1.1 0.00002885 1.04 AML other m 2022-09-04T19:51:38.00
IV.RM33.EHE. ML:1.2 0.000033299999999999996 0.42 AML other m 2022-09-04T19:51:39.38
IV.SSFR.HHE. ML:1.1 0.00002715 1.78 AML other m 2022-09-04T19:51:40.09
IV.SSFR.HHN. ML:1.2 0.00003185 0.18 AML other m 2022-09-04T19:51:41.89
IV.PIEI.HHE. ML:0.8 0.00001172 0.42 AML other m 2022-09-04T19:51:44.96
IV.PIEI.HHN. ML:0.5 0.00000726 0.74 AML other m 2022-09-04T19:51:46.98
IV.SNTG.HHE. ML:0.5 0.0000114724535 0.1152 AML other m 2022-09-04T19:51:34.51
IV.SNTG.HHN. ML:0.7 0.000014272210000000001 0.1792 AML other m 2022-09-04T19:51:35.30
IV.CSP1.EHE. ML:1.5 0.00010149109500000001 0.1536 AML other m 2022-09-04T19:51:34.67
IV.CSP1.EHN. ML:1.5 0.00009461154999999999 0.1792 AML other m 2022-09-04T19:51:35.00
IV.FOSV.EHE. ML:0.5 0.0000100777305 0.1024 AML other m 2022-09-04T19:51:35.55
IV.FOSV.EHN. ML:0.5 0.0000119316595 0.128 AML other m 2022-09-04T19:51:35.94
IV.EL6.EHE. ML:1.4 0.000050653649999999996 0.1792 AML other m 2022-09-04T19:51:37.00
IV.EL6.EHN. ML:1.3 0.000041003705 0.1408 AML other m 2022-09-04T19:51:38.16
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download