Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 18-05-2022 and time 17:29:30 (Italy) in region 1 km NE Norcia (PG)

A magnitude ML 1.0 earthquake occured in region: 1 km NE Norcia (PG), on

  • 18-05-2022 15:29:30 (UTC)
  • 18-05-2022 17:29:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8040, 13.0990 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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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 1 4957 4957
Preci PG 10 724 5681
Castelsantangelo sul Nera MC 11 281 5962
Cascia PG 12 3217 9179
Visso MC 14 1107 10286
Cerreto di Spoleto PG 15 1075 11361
Ussita MC 16 444 11805
Arquata del Tronto AP 17 1178 12983
Poggiodomo PG 17 117 13100
Sellano PG 17 1079 14179
Accumoli RI 17 667 14846
Vallo di Nera PG 20 364 15210
Montegallo AP 20 523 15733

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
46 Km NE of Terni (111501 inhabitants)
52 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
67 Km SE of Perugia (166134 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
99 Km W of Pescara (121014 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 1.0 2022-05-18
15:29:30		 42.8035 13.0992 10 2022-05-18
15:40:56		 Sala Sismica INGV-Roma 104822911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-18 15:29:30 ± 0.07
Latitude 42.8035 ± 0.0045
Longitude 13.0992 ± 0.0061
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 104822911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 557
Semi-minor axis of confidence ellipse (meter) 356
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 129
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 76
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.03238
Epicentral distance of station farthest from the epicenter (degree) 0.46585
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 104822911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-18 15:40:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2022-05-18T15:29:47.19 0.6 undecidable manual S 346 51.7038 50 0.68 40
IV.TERO.HNZ. 2022-05-18T15:29:44.94 0.6 undecidable manual S 116 45.7209 50 0.02 48
IV.CSP1.EHE. 2022-05-18T15:29:41.32 0.6 undecidable manual S 15 33.1446 50 -0.23 47
IV.SNTG.HHZ. 2022-05-18T15:29:40.31 0.3 undecidable manual P 346 51.7038 50 0.73 59
IV.FDMO.HHZ. 2022-05-18T15:29:39.21 0.6 undecidable manual S 358 25.8519 50 -0.4 46
IV.CESI.HHZ. 2022-05-18T15:29:39.68 0.6 undecidable manual S 325 27.3504 50 -0.33 46
IV.TERO.HNZ. 2022-05-18T15:29:38.68 0.6 undecidable manual P 116 45.7209 50 0.02 48
IV.GAVE.EHN. 2022-05-18T15:29:38.21 0.6 undecidable manual S 234 20.7681 117 0.04 50
IV.LNSS.HHE. 2022-05-18T15:29:38.67 0.6 undecidable manual S 192 22.755 50 -0.11 49
7F.SIB1.EHE. 2022-05-18T15:29:37.15 0.6 undecidable manual S 54 17.1717 121 0.06 50
IV.CSP1.EHE. 2022-05-18T15:29:36.72 0.1 undecidable manual P 15 33.1446 50 0.01 98
7F.SIB3.EHE. 2022-05-18T15:29:36.34 0.6 undecidable manual S 60 15.9729 123 -0.4 47
IT.FOPC.HGN. 2022-05-18T15:29:36.99 0.1 undecidable manual P 300 37.1295 50 -0.34 91
IV.MC2.EHZ. 2022-05-18T15:29:36.44 0.6 undecidable manual S 31 14.0748 127 0.27 48
IV.FDMO.HHZ. 2022-05-18T15:29:35.67 1.0 positive manual P 358 25.8519 50 0.08 24
IV.CESI.HHZ. 2022-05-18T15:29:35.78 0.6 positive manual P 325 27.3504 50 -0.04 49
IV.LNSS.HHE. 2022-05-18T15:29:35.29 0.1 undecidable manual P 192 22.755 50 0.17 97
7F.SIB1.EHE. 2022-05-18T15:29:34.18 0.1 undecidable manual P 54 17.1717 121 0.05 100
IV.GAVE.EHN. 2022-05-18T15:29:34.73 0.1 undecidable manual P 234 20.7681 117 -0.03 100
7F.SIB3.EHE. 2022-05-18T15:29:33.79 0.1 undecidable manual P 60 15.9729 123 -0.14 98
IV.MC2.EHZ. 2022-05-18T15:29:33.89 0.6 positive manual P 31 14.0748 127 0.28 48
IV.NRCA.HHZ. 2022-05-18T15:29:33.70 0.6 undecidable manual S 20 3.5964 161 -0.23 49
IV.NRCA.HHZ. 2022-05-18T15:29:32.42 0.6 undecidable manual P 20 3.5964 161 0.11 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.2 0.00028519465 0.1408 AML other m 2022-05-18T15:29:33.90
IV.NRCA.HHN. ML:1.2 0.000244229 0.0768 AML other m 2022-05-18T15:29:33.86
IV.NRCA.HNE. ML:1.1 0.00022735085 0.1024 AML other m 2022-05-18T15:29:33.97
IV.NRCA.HNN. ML:1.1 0.0002187782 0.0768 AML other m 2022-05-18T15:29:33.86
IV.MC2.EHE. ML:1.0 0.00009843002 0.2432 AML other m 2022-05-18T15:29:39.50
IV.MC2.EHN. ML:1.1 0.000123305365 0.2304 AML other m 2022-05-18T15:29:38.10
IV.FDMO.HHE. ML:0.4 0.00001264054 0.2304 AML other m 2022-05-18T15:29:40.06
IV.FDMO.HHN. ML:0.2 0.000009467848 0.1536 AML other m 2022-05-18T15:29:39.97
IV.CESI.HHE. ML:0.7 0.000023011415 0.2432 AML other m 2022-05-18T15:29:40.12
IV.CESI.HHN. ML:0.7 0.000023146239999999998 0.2944 AML other m 2022-05-18T15:29:39.82
IV.TERO.HHE. ML:0.5 0.000010750943499999998 0.704 AML other m 2022-05-18T15:29:45.32
IV.TERO.HHN. ML:0.7 0.000013537899999999998 0.4992 AML other m 2022-05-18T15:29:45.32
IV.SNTG.HHE. ML:1.2 0.00003693521 0.064 AML other m 2022-05-18T15:29:47.74
IV.SNTG.HHN. ML:1.0 0.00002635477 0.0768 AML other m 2022-05-18T15:29:49.91
IV.SNTG.HNE. ML:1.3 0.000056559570000000004 0.3712 AML other m 2022-05-18T15:29:47.47
IV.SNTG.HNN. ML:1.6 0.00009660360499999999 1.0368 AML other m 2022-05-18T15:29:47.56
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