Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 03-09-2022 and time 23:22:22 (Italy) in region 4 km E Norcia (PG)

A magnitude ML 1.0 earthquake occured in region: 4 km E Norcia (PG), on

  • 03-09-2022 21:22:22 (UTC)
  • 03-09-2022 23:22:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7940, 13.1370 at 10 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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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Norcia PG 4 4957 4957
Castelsantangelo sul Nera MC 11 281 5238
Preci PG 12 724 5962
Cascia PG 13 3217 9179
Arquata del Tronto AP 13 1178 10357
Accumoli RI 14 667 11024
Visso MC 16 1107 12131
Ussita MC 17 444 12575
Montegallo AP 17 523 13098
Cerreto di Spoleto PG 18 1075 14173
Poggiodomo PG 19 117 14290
Cittareale RI 20 482 14772
Montemonaco AP 20 604 15376

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
49 Km W of Teramo (54892 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
70 Km SE of Perugia (166134 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km W of Pescara (121014 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
98 Km NW of Chieti (51815 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
Bulletin
Rev1000 		ML 1.0 2022-09-03
21:22:22		 42.7938 13.1367 10 2024-03-01
15:27:53		 Bollettino Sismico Italiano INGV 109469341
Reviewed
Rev100 		ML 1.0 2022-09-03
21:22:22		 42.7948 13.1465 11 2022-09-03
21:30:21		 Sala Sismica INGV-Roma 109304871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-03 21:22:22 ± 0.04
Latitude 42.7938 ± 0.0027
Longitude 13.1367 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 109469341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 303
Semi-minor axis of confidence ellipse (meter) 260
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 114
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.04317
Epicentral distance of station farthest from the epicenter (degree) 0.38311
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 109304871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-03 21:30:21

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 109469341
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-03-29 16:21:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2022-09-03T21:22:36.79 0.6 undecidable manual S 116 42.5241 50 -0.03 48
IV.MF5.EHN. 2022-09-03T21:22:35.52 0.6 undecidable manual S 51 33.9438 50 1.01 35
IV.MML1.EHZ. 2022-09-03T21:22:35.52 0.6 undecidable manual S 339 37.9287 50 -0.05 48
IV.RM33.EHZ. 2022-09-03T21:22:34.05 0.6 undecidable manual S 169 32.2455 50 -0.01 49
IV.CSP1.EHZ. 2022-09-03T21:22:34.29 0.6 undecidable manual S 9 33.5442 50 -0.11 48
IV.CESI.HHZ. 2022-09-03T21:22:33.38 0.3 undecidable manual S 321 30.0477 50 -0.1 72
IV.FDMO.HHN. 2022-09-03T21:22:32.39 0.6 undecidable manual S 352 27.2505 50 -0.33 46
IV.GAVE.EHN. 2022-09-03T21:22:31.42 0.6 undecidable manual S 240 22.755 114 0.05 49
IV.LNSS.HHZ. 2022-09-03T21:22:31.46 0.6 undecidable manual S 200 22.5552 114 0.14 48
IV.MMO1.EHZ. 2022-09-03T21:22:30.18 0.6 undecidable manual S 53 19.3695 117 -0.14 49
IV.TERO.HHZ. 2022-09-03T21:22:30.64 0.3 undecidable manual P 116 42.5241 50 -0.23 69
IV.MTRA.EHE. 2022-09-03T21:22:30.64 0.6 undecidable manual S 101 21.5673 115 -0.35 46
IV.MML1.EHZ. 2022-09-03T21:22:30.22 0.1 undecidable manual P 339 37.9287 50 0.07 95
IV.MF5.EHN. 2022-09-03T21:22:29.83 0.3 undecidable manual P 51 33.9438 50 0.28 69
IV.RM33.EHZ. 2022-09-03T21:22:29.35 0.3 undecidable manual P 169 32.2455 50 0.07 72
IV.CSP1.EHZ. 2022-09-03T21:22:29.41 0.1 undecidable manual P 9 33.5442 50 -0.07 96
7F.SIB2.EHE. 2022-09-03T21:22:29.59 0.6 undecidable manual S 52 17.3715 120 -0.1 49
IV.CESI.HHZ. 2022-09-03T21:22:28.89 0.1 undecidable manual P 321 30.0477 50 -0.05 97
IV.FDMO.HHN. 2022-09-03T21:22:28.35 0.1 undecidable manual P 352 27.2505 50 -0.15 96
IV.MC2.EHZ. 2022-09-03T21:22:28.98 0.6 undecidable manual S 18 13.6752 126 0.34 47
7F.SIB3.EHN. 2022-09-03T21:22:28.55 0.6 undecidable manual S 50 14.0748 125 -0.19 48
IV.MMO1.EHZ. 2022-09-03T21:22:27.07 0.1 undecidable manual P 53 19.3695 117 -0.05 99
IV.MTRA.EHE. 2022-09-03T21:22:27.49 0.3 undecidable manual P 101 21.5673 115 -0.02 74
IV.LNSS.HHZ. 2022-09-03T21:22:27.69 0.1 undecidable manual P 200 22.5552 114 -0.01 99
IV.GAVE.EHN. 2022-09-03T21:22:27.71 0.3 undecidable manual P 240 22.755 114 -0.01 74
IV.MC2.EHZ. 2022-09-03T21:22:26.40 0.1 positive manual P 18 13.6752 126 0.25 96
7F.SIB2.EHE. 2022-09-03T21:22:26.71 0.1 undecidable manual P 52 17.3715 120 -0.05 99
7F.SIB3.EHN. 2022-09-03T21:22:26.25 0.1 undecidable manual P 50 14.0748 125 0.04 100
IV.NRCA.HHZ. 2022-09-03T21:22:26.41 0.3 undecidable manual S 338 4.7952 154 -0.18 74
IV.NRCA.HHZ. 2022-09-03T21:22:25.13 0.1 undecidable manual P 338 4.7952 154 0.17 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MC2.EHN. ML:1.5 0.000293 0.18 AML other m 2022-09-03T21:22:30.27
IV.MC2.EHE. ML:1.3 0.0002198 0.86 AML other m 2022-09-03T21:22:30.33
IV.MMO1.EHE. ML:0.9 0.0000552 1.54 AML other m 2022-09-03T21:22:30.89
IV.MMO1.EHN. ML:0.9 0.0000639 0.7 AML other m 2022-09-03T21:22:31.41
IV.LNSS.HHE. ML:1.3 0.0001208 0.16 AML other m 2022-09-03T21:22:31.71
IV.LNSS.HHN. ML:1.3 0.00012595 0.22 AML other m 2022-09-03T21:22:31.84
IV.CESI.HHN. ML:0.5 0.000017213325000000002 0.256 AML other m 2022-09-03T21:22:33.61
IV.CESI.HHE. ML:0.3 0.000011908338999999999 0.2304 AML other m 2022-09-03T21:22:33.64
IV.CSP1.EHE. ML:0.8 0.0000314285365 0.3968 AML other m 2022-09-03T21:22:34.63
IV.MML1.EHE. ML:0.8 0.00002355 0.16 AML other m 2022-09-03T21:22:36.25
IV.MML1.EHN. ML:0.8 0.00002295 1.22 AML other m 2022-09-03T21:22:36.86
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