Earthquake with magnitude of ML 1.5 on date 20-09-2022 and time 01:37:59 (UTC) in region 3 km W Norcia (PG)

A magnitude ML 1.5 earthquake occured in region: 3 km W Norcia (PG), on

  • 20-09-2022 01:37:59 (UTC)
  • 20-09-2022 03:37:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7820, 13.0540 at 11 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.

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
Cascia PG 8 3217 8174
Preci PG 11 724 8898
Cerreto di Spoleto PG 12 1075 9973
Poggiodomo PG 12 117 10090
Castelsantangelo sul Nera MC 15 281 10371
Vallo di Nera PG 16 364 10735
Sellano PG 16 1079 11814
Monteleone di Spoleto PG 17 599 12413
Visso MC 17 1107 13520
Sant'Anatolia di Narco PG 19 564 14084
Accumoli RI 19 667 14751
Ussita MC 19 444 15195
Scheggino PG 20 461 15656

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km SE of Foligno (57155 inhabitants)
41 Km NE of Terni (111501 inhabitants)
55 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
65 Km SE of Perugia (166134 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km N of Tivoli (56533 inhabitants)
95 Km W of Montesilvano (53738 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 1.5 2022-09-20
01:37:59
42.7823 13.0537 11 2024-03-01
15:28:08
Bollettino Sismico Italiano INGV 112517791
Reviewed
Rev100
ML 1.5 2022-09-20
01:37:59
42.7802 13.0528 11 2022-09-20
02:02:24
Sala Sismica INGV-Roma 109912391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-20 01:37:59 ± 0.04
Latitude 42.7823 ± 0.0018
Longitude 13.0537 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 112517791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 316
Semi-minor axis of confidence ellipse (meter) 176
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 119
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.06745
Epicentral distance of station farthest from the epicenter (degree) 0.60165
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 112517791
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-11 14:38:31

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 109912391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-20 02:02:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2022-09-20T01:38:13.64 0.6 undecidable manual S 312 43.1235 50 0.11 47
IV.GUMA.HHZ. 2022-09-20T01:38:13.06 0.6 undecidable manual S 36 38.628 50 0.75 39
IV.CSP1.EHZ. 2022-09-20T01:38:11.96 0.6 undecidable manual S 20 36.4413 50 0.22 46
IV.CING.HHZ. 2022-09-20T01:38:11.32 0.3 undecidable manual P 10 66.7776 50 0.1 67
IV.ARRO.EHZ. 2022-09-20T01:38:10.63 0.6 undecidable manual S 226 32.5452 50 -0.07 48
IV.EL6.EHZ. 2022-09-20T01:38:10.53 0.3 undecidable manual P 4 60.7947 50 0.23 66
IV.RM33.EHZ. 2022-09-20T01:38:10.90 0.6 undecidable manual S 157 33.0447 50 0.07 48
IV.CESI.HHZ. 2022-09-20T01:38:09.16 0.6 undecidable manual S 334 27.4503 50 -0.19 47
IV.FDMO.HHZ. 2022-09-20T01:38:09.38 0.6 undecidable manual S 6 28.3494 50 -0.18 47
IT.MTCL.HGZ. 2022-09-20T01:38:08.02 0.6 undecidable manual S 349 23.8539 50 -0.36 46
IV.TERO.HHZ. 2022-09-20T01:38:08.22 0.3 undecidable manual P 111 48.2184 50 -0.14 69
IV.MMO1.EHZ. 2022-09-20T01:38:08.79 0.6 undecidable manual S 60 25.752 50 -0.08 48
IV.FEMA.HNE. 2022-09-20T01:38:07.07 0.6 undecidable manual S 359 19.9689 118 -0.23 47
IV.LNSS.HHZ. 2022-09-20T01:38:07.17 0.6 undecidable manual S 183 19.9689 118 -0.14 48
7F.SIB3.EHN. 2022-09-20T01:38:07.00 0.6 undecidable manual S 60 20.3685 118 -0.44 45
7F.SIB1.EHE. 2022-09-20T01:38:07.76 0.6 undecidable manual S 55 21.5673 50 0 49
IV.ASSB.HHZ. 2022-09-20T01:38:07.49 0.3 undecidable manual P 312 43.1235 50 -0.09 70
IV.MF5.EHZ. 2022-09-20T01:38:07.58 0.3 undecidable manual P 55 40.1265 50 0.47 65
7F.SIB2.EHE. 2022-09-20T01:38:07.95 0.6 undecidable manual S 59 23.6541 50 -0.37 46
IV.GUMA.HHZ. 2022-09-20T01:38:07.17 0.3 undecidable manual P 36 38.628 50 0.29 68
IV.GAVE.EHZ. 2022-09-20T01:38:06.32 0.6 undecidable manual S 232 16.3725 123 0.07 49
IV.MC2.EHZ. 2022-09-20T01:38:06.91 0.6 undecidable manual S 37 18.0708 121 0.18 48
IV.CSP1.EHZ. 2022-09-20T01:38:06.56 0.1 undecidable manual P 20 36.4413 50 0.01 96
IV.ARRO.EHZ. 2022-09-20T01:38:05.95 0.1 undecidable manual P 226 32.5452 50 0 97
IV.FDMO.HHZ. 2022-09-20T01:38:05.16 0.1 undecidable manual P 6 28.3494 50 -0.13 95
IV.CESI.HHZ. 2022-09-20T01:38:05.07 0.1 undecidable manual P 334 27.4503 50 -0.1 96
IV.RM33.EHZ. 2022-09-20T01:38:05.89 0.1 undecidable manual P 157 33.0447 50 -0.13 94
IT.MTCL.HGZ. 2022-09-20T01:38:04.49 0.3 undecidable manual P 349 23.8539 50 -0.12 72
7F.SIB2.EHE. 2022-09-20T01:38:04.45 0.1 undecidable manual P 59 23.6541 50 -0.12 96
IV.MMO1.EHZ. 2022-09-20T01:38:04.86 0.1 undecidable manual P 60 25.752 50 -0.03 98
7F.SIB1.EHE. 2022-09-20T01:38:04.32 0.1 undecidable manual P 55 21.5673 50 0.07 98
IV.GAVE.EHZ. 2022-09-20T01:38:03.55 0.1 positive manual P 232 16.3725 123 0.17 96
IV.FEMA.HNE. 2022-09-20T01:38:03.99 0.3 undecidable manual P 359 19.9689 118 0 74
IV.NRCA.HHZ. 2022-09-20T01:38:03.92 0.1 undecidable manual S 41 7.4814 145 -0.07 100
IV.LNSS.HHZ. 2022-09-20T01:38:03.98 0.1 positive manual P 183 19.9689 118 -0.01 99
7F.SIB3.EHN. 2022-09-20T01:38:03.95 0.1 undecidable manual P 60 20.3685 118 -0.12 97
IV.MC2.EHZ. 2022-09-20T01:38:03.79 0.1 undecidable manual P 37 18.0708 121 0.13 97
IV.NRCA.HHZ. 2022-09-20T01:38:02.24 0.1 negative manual P 41 7.4814 145 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.9 0.0011549999999999998 0.1 AML other m 2022-09-20T01:38:04.06
IV.NRCA.HNE. ML:1.9 0.001075 0.08 AML other m 2022-09-20T01:38:04.07
IV.NRCA.HHN. ML:1.8 0.0009419999999999999 0.16 AML other m 2022-09-20T01:38:04.09
IV.NRCA.HNN. ML:1.8 0.00086 0.14 AML other m 2022-09-20T01:38:04.09
IV.GAVE.EHE. ML:1.7 0.0004455 0.2 AML other m 2022-09-20T01:38:06.48
IV.GAVE.EHN. ML:1.6 0.00036449999999999997 0.82 AML other m 2022-09-20T01:38:06.18
IV.MC2.EHE. ML:1.5 0.00024945 0.16 AML other m 2022-09-20T01:38:07.04
IV.LNSS.HHN. ML:1.7 0.00035099999999999997 0.14 AML other m 2022-09-20T01:38:07.55
IV.LNSS.HHE. ML:1.6 0.000319 0.12 AML other m 2022-09-20T01:38:07.62
IV.MC2.EHN. ML:1.4 0.000225 0.2 AML other m 2022-09-20T01:38:08.41
IV.CESI.HHN. ML:1.4 0.0001395 0.46 AML other m 2022-09-20T01:38:09.67
IV.FDMO.HHE. ML:1.2 0.00007725 0.54 AML other m 2022-09-20T01:38:09.71
IV.FDMO.HHN. ML:1.5 0.00014900000000000002 1.84 AML other m 2022-09-20T01:38:10.97
IV.CESI.HHE. ML:1.0 0.000055499999999999994 1.12 AML other m 2022-09-20T01:38:10.28
IV.RM33.EHN. ML:1.1 0.0000547 1.34 AML other m 2022-09-20T01:38:12.23
IV.ARRO.EHN. ML:1.1 0.000050900000000000004 0.18 AML other m 2022-09-20T01:38:12.26
IV.ARRO.EHE. ML:1.0 0.00003755 0.16 AML other m 2022-09-20T01:38:12.25
IV.RM33.EHE. ML:1.1 0.00005545 0.58 AML other m 2022-09-20T01:38:12.63
IV.CSP1.EHN. ML:1.6 0.00014425 0.52 AML other m 2022-09-20T01:38:13.62
IV.CSP1.EHE. ML:1.6 0.000142 0.42 AML other m 2022-09-20T01:38:13.55
IV.ASSB.HHE. ML:1.2 0.0000443 1.08 AML other m 2022-09-20T01:38:15.93
IV.ASSB.HHN. ML:1.1 0.00003755 0.96 AML other m 2022-09-20T01:38:16.56
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