Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 05-02-2023 and time 13:23:05 (UTC) in region 6 km NW Norcia (PG)

A magnitude ML 1.5 earthquake occured in region: 6 km NW Norcia (PG), on

  • 05-02-2023 13:23:05 (UTC)
  • 05-02-2023 14:23:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8220, 13.0360 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 6 4957 4957
Preci PG 7 724 5681
Cerreto di Spoleto PG 10 1075 6756
Cascia PG 12 3217 9973
Sellano PG 12 1079 11052
Castelsantangelo sul Nera MC 13 281 11333
Visso MC 13 1107 12440
Poggiodomo PG 15 117 12557
Vallo di Nera PG 15 364 12921
Ussita MC 16 444 13365
Sant'Anatolia di Narco PG 19 564 13929
Monte Cavallo MC 19 145 14074
Monteleone di Spoleto PG 20 599 14673

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of Foligno (57155 inhabitants)
43 Km NE of Terni (111501 inhabitants)
58 Km W of Teramo (54892 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
62 Km SE of Perugia (166134 inhabitants)
88 Km NE of Viterbo (67173 inhabitants)
95 Km N of Guidonia Montecelio (88673 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
97 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 2023-02-05
13:23:05		 42.8215 13.0362 10 2024-03-01
17:18:15		 Bollettino Sismico Italiano INGV 120441811
Reviewed
Rev100 		ML 1.6 2023-02-05
13:23:05		 42.8225 13.039 10 2023-02-05
14:02:15		 Sala Sismica INGV-Roma 114097501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-05 13:23:05 ± 0.05
Latitude 42.8215 ± 0.0027
Longitude 13.0362 ± 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 120441811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 290
Semi-minor axis of confidence ellipse (meter) 275
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 159
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 40
Number of associated phases, regardless of their use for origin computation 60
Number of defining phases 60
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.05846
Epicentral distance of station farthest from the epicenter (degree) 0.51351
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 30
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 33
Type of magnitude ML
Reference to an origin 120441811
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-24 17:41:32

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 114097501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-05 14:02:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FOSV.EHZ. 2023-02-05T13:23:23.40 0.6 undecidable manual S 337 56.9985 50 0.3 44
IV.EL6.EHZ. 2023-02-05T13:23:23.00 0.6 undecidable manual S 5 56.5989 50 0.02 47
IV.MNTT.EHZ. 2023-02-05T13:23:22.80 0.6 undecidable manual S 59 52.7028 50 0.86 37
IV.ATCC.HNZ. 2023-02-05T13:23:21.89 0.6 undecidable manual S 322 51.6039 50 0.25 45
IV.TERO.HHZ. 2023-02-05T13:23:21.20 0.6 undecidable manual S 115 51.2154 50 -0.36 44
IV.SNTG.HHZ. 2023-02-05T13:23:20.50 0.6 undecidable manual S 351 48.7179 50 -0.38 44
IV.SAP2.EHE. 2023-02-05T13:23:20.06 0.6 undecidable manual S 44 42.4242 50 0.86 37
IV.CESX.HHZ. 2023-02-05T13:23:19.80 0.6 undecidable manual S 237 43.623 50 0.29 45
IV.RM33.EHZ. 2023-02-05T13:23:18.00 0.6 undecidable manual S 157 37.629 50 0.09 48
IV.MF5.EHZ. 2023-02-05T13:23:18.60 0.6 undecidable manual S 62 39.0276 50 0.3 45
IV.MOMA.HHE. 2023-02-05T13:23:17.60 0.6 undecidable manual S 267 37.9287 50 -0.41 44
IV.PF6.EHE. 2023-02-05T13:23:17.50 0.6 undecidable manual S 20 37.3293 50 -0.35 45
IV.GUMA.HHZ. 2023-02-05T13:23:17.40 0.6 undecidable manual S 42 36.1416 50 -0.12 47
IV.CSP1.EHZ. 2023-02-05T13:23:16.20 0.3 undecidable manual S 24 32.9448 50 -0.48 66
IT.FOPC.HGN. 2023-02-05T13:23:16.53 0.3 undecidable manual S 301 31.6461 50 0.2 70
IV.MML1.EHZ. 2023-02-05T13:23:16.10 1.0 undecidable manual S 351 32.8449 50 -0.53 22
IV.ARRO.EHN. 2023-02-05T13:23:16.60 0.6 undecidable manual S 219 34.743 50 -0.55 43
IV.SMA1.EHN. 2023-02-05T13:23:16.23 0.6 undecidable manual S 131 32.3454 50 -0.27 46
IV.MNTT.EHZ. 2023-02-05T13:23:15.66 0.3 undecidable manual P 59 52.7028 50 0.83 56
IV.MTRA.HNZ. 2023-02-05T13:23:15.60 0.6 undecidable manual S 104 30.2475 50 -0.34 46
IV.FOSV.EHZ. 2023-02-05T13:23:15.58 0.3 undecidable manual P 337 56.9985 50 0.07 69
IV.EL6.EHZ. 2023-02-05T13:23:15.34 0.1 undecidable manual P 5 56.5989 50 -0.09 92
IV.SNTG.HHZ. 2023-02-05T13:23:14.06 0.3 undecidable manual P 351 48.7179 50 -0.16 69
IV.LNSS.HHZ. 2023-02-05T13:23:14.10 0.6 undecidable manual S 179 24.2535 112 -0.1 49
IV.ATCC.HNZ. 2023-02-05T13:23:14.73 0.6 undecidable manual P 322 51.6039 50 0.07 47
IV.TERO.HHZ. 2023-02-05T13:23:14.54 0.1 undecidable manual P 115 51.2154 50 -0.07 93
IV.CESX.HHZ. 2023-02-05T13:23:13.37 0.6 undecidable manual P 237 43.623 50 -0.06 47
7F.SIB2.EHZ. 2023-02-05T13:23:13.50 0.3 undecidable manual S 70 23.0547 113 -0.33 70
IV.MF5.EHZ. 2023-02-05T13:23:13.06 0.1 undecidable manual P 62 39.0276 50 0.33 90
IV.FDMO.HHZ. 2023-02-05T13:23:13.70 0.6 undecidable manual S 10 24.2535 112 -0.48 45
7F.SIB1.EHZ. 2023-02-05T13:23:13.00 0.6 undecidable manual S 67 20.6682 115 -0.06 49
IV.MMO1.EHZ. 2023-02-05T13:23:13.90 0.6 undecidable manual S 70 25.1526 111 -0.59 43
IV.SAP2.EHE. 2023-02-05T13:23:13.94 0.6 undecidable manual P 44 42.4242 50 0.69 40
IV.CESI.HHZ. 2023-02-05T13:23:13.50 0.6 undecidable manual S 332 22.9548 113 -0.29 47
7F.SIB3.EHZ. 2023-02-05T13:23:12.30 0.6 undecidable manual S 73 19.9689 116 -0.52 45
IV.RM33.EHZ. 2023-02-05T13:23:12.43 0.1 undecidable manual P 157 37.629 50 -0.08 95
IT.MTCL.HGZ. 2023-02-05T13:23:12.30 0.6 undecidable manual S 351 19.3695 117 -0.35 47
IV.PF6.EHE. 2023-02-05T13:23:12.39 0.3 undecidable manual P 20 37.3293 50 -0.08 71
IV.ARRO.EHN. 2023-02-05T13:23:12.12 0.3 undecidable manual P 219 34.743 50 0.05 72
IV.MOMA.HHE. 2023-02-05T13:23:12.86 0.3 undecidable manual P 267 37.9287 50 0.29 68
IV.GUMA.HHZ. 2023-02-05T13:23:12.47 0.1 undecidable manual P 42 36.1416 50 0.19 93
IV.MML1.EHZ. 2023-02-05T13:23:11.22 0.6 undecidable manual P 351 32.8449 50 -0.55 43
IV.MC2.EHZ. 2023-02-05T13:23:11.80 0.6 undecidable manual S 51 15.9729 121 0.19 48
IV.CSP1.EHZ. 2023-02-05T13:23:11.65 0.1 undecidable manual P 24 32.9448 50 -0.14 95
IV.SMA1.EHN. 2023-02-05T13:23:11.33 0.6 undecidable manual P 131 32.3454 50 -0.36 45
IT.FOPC.HGN. 2023-02-05T13:23:11.58 0.1 undecidable manual P 301 31.6461 50 -0.01 98
IV.MTRA.HNZ. 2023-02-05T13:23:11.30 0.3 undecidable manual P 104 30.2475 50 -0.07 73
IV.FEMA.HNZ. 2023-02-05T13:23:11.60 0.6 undecidable manual S 4 15.6732 122 0.08 49
IV.MMO1.EHZ. 2023-02-05T13:23:10.46 0.3 undecidable manual P 70 25.1526 111 -0.07 73
IV.CESI.HHZ. 2023-02-05T13:23:10.11 0.1 undecidable manual P 332 22.9548 113 -0.02 99
IV.LNSS.HHZ. 2023-02-05T13:23:10.42 0.1 undecidable manual P 179 24.2535 112 0.06 98
7F.SIB2.EHZ. 2023-02-05T13:23:10.09 0.1 undecidable manual P 70 23.0547 113 -0.06 98
IV.FDMO.HHZ. 2023-02-05T13:23:10.30 0.3 undecidable manual P 10 24.2535 112 -0.05 74
IV.NRCA.HHZ. 2023-02-05T13:23:09.30 0.1 undecidable manual S 78 6.4935 146 0.11 100
7F.SIB3.EHZ. 2023-02-05T13:23:09.59 0.1 undecidable manual P 73 19.9689 116 0.02 100
IV.MC2.EHZ. 2023-02-05T13:23:09.20 0.1 undecidable manual P 51 15.9729 121 0.33 94
IT.MTCL.HGZ. 2023-02-05T13:23:09.46 0.3 undecidable manual P 351 19.3695 117 -0.01 75
IV.FEMA.HNZ. 2023-02-05T13:23:09.17 0.3 undecidable manual P 4 15.6732 122 0.35 70
7F.SIB1.EHZ. 2023-02-05T13:23:09.84 0.1 undecidable manual P 67 20.6682 115 0.13 97
IV.NRCA.HHZ. 2023-02-05T13:23:07.81 0.1 undecidable manual P 78 6.4935 146 0.34 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:2.1 0.00197 0.14 AML other m 2023-02-05T13:23:09.48
IV.NRCA.HHE. ML:1.8 0.0010315 0.12 AML other m 2023-02-05T13:23:10.57
IV.MC2.EHE. ML:1.7 0.00051 0.12 AML other m 2023-02-05T13:23:13.08
IV.CESI.HHE. ML:1.5 0.00019895544999999997 0.096 AML other m 2023-02-05T13:23:13.86
IV.MC2.EHN. ML:1.8 0.000647 0.2 AML other m 2023-02-05T13:23:13.68
IV.CESI.HHN. ML:1.8 0.00039210305 0.1216 AML other m 2023-02-05T13:23:14.03
IV.FDMO.HHE. ML:1.6 0.000214 0.2 AML other m 2023-02-05T13:23:14.06
IV.FDMO.HHN. ML:1.4 0.00014383039999999998 0.1408 AML other m 2023-02-05T13:23:14.29
IV.LNSS.HHE. ML:1.5 0.00017713459499999997 0.2368 AML other m 2023-02-05T13:23:14.60
IV.LNSS.HHN. ML:1.7 0.0003275 0.16 AML other m 2023-02-05T13:23:14.77
IV.MMO1.EHE. ML:1.6 0.00022167655 0.1408 AML other m 2023-02-05T13:23:15.26
IV.MMO1.EHN. ML:1.8 0.000358 0.22 AML other m 2023-02-05T13:23:15.03
IV.MML1.EHE. ML:1.1 0.00006189413 0.2048 AML other m 2023-02-05T13:23:17.72
IV.MML1.EHN. ML:1.1 0.000052064070000000007 0.4608 AML other m 2023-02-05T13:23:17.04
IV.RM33.EHE. ML:1.3 0.00006806710999999999 0.16 AML other m 2023-02-05T13:23:19.12
IV.RM33.EHN. ML:1.3 0.00006821216422999999 0.3008 AML other m 2023-02-05T13:23:18.99
IV.TERO.HHN. ML:1.5 0.00008699843499999999 0.0832 AML other m 2023-02-05T13:23:22.17
IV.CESX.HHE. ML:1.0 0.000034052644999999996 0.224 AML other m 2023-02-05T13:23:22.11
IV.CESX.HHN. ML:1.1 0.000039211509999999996 1.2224 AML other m 2023-02-05T13:23:19.89
IV.TERO.HHE. ML:1.2 0.0000403525 0.0768 AML other m 2023-02-05T13:23:22.37
IV.GUMA.HHN. ML:1.5 0.0001155963 0.4416 AML other m 2023-02-05T13:23:18.82
IV.NRCA.HNE. ML:1.8 0.0009508663 0.1216 AML other m 2023-02-05T13:23:10.51
IV.NRCA.HNN. ML:2.1 0.0017981525 0.128 AML other m 2023-02-05T13:23:09.42
IV.CESI.HNE. ML:1.5 0.00018912121 0.1088 AML other m 2023-02-05T13:23:13.64
IV.CESI.HNN. ML:1.7 0.00034343425 0.1152 AML other m 2023-02-05T13:23:14.04
IV.LNSS.HNE. ML:1.5 0.0001813125385 0.2496 AML other m 2023-02-05T13:23:14.60
IV.LNSS.HNN. ML:1.7 0.00031002095000000004 0.3136 AML other m 2023-02-05T13:23:14.77
IV.MML1.HNE. ML:1.3 0.00009266353150000001 0.3392 AML other m 2023-02-05T13:23:17.31
IV.MML1.HNN. ML:1.6 0.00015392885 0.928 AML other m 2023-02-05T13:23:22.00
IV.RM33.HNN. ML:1.4 0.000098404175 0.32 AML other m 2023-02-05T13:23:19.27
IV.SNTG.HHE. ML:1.2 0.000040500225000000004 1.1776 AML other m 2023-02-05T13:23:23.62
IV.SNTG.HHN. ML:1.0 0.000027981142500000002 0.2432 AML other m 2023-02-05T13:23:26.66
IV.FOSV.EHE. ML:0.8 0.0000170615015 0.9984 AML other m 2023-02-05T13:23:25.86
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