Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 18-05-2022 and time 06:25:21 (Italy) in region 3 km SE Cerreto di Spoleto (PG)

A magnitude ML 1.2 earthquake occured in region: 3 km SE Cerreto di Spoleto (PG), on

  • 18-05-2022 04:25:21 (UTC)
  • 18-05-2022 06:25:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8060, 12.9480 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
Cerreto di Spoleto PG 3 1075 1075
Vallo di Nera PG 8 364 1439
Sellano PG 10 1079 2518
Poggiodomo PG 10 117 2635
Preci PG 11 724 3359
Cascia PG 11 3217 6576
Norcia PG 12 4957 11533
Sant'Anatolia di Narco PG 12 564 12097
Scheggino PG 14 461 12558
Campello sul Clitunno PG 14 2442 15000
Monteleone di Spoleto PG 17 599 15599
Visso MC 18 1107 16706
Trevi PG 18 8469 25175
Spoleto PG 19 38218 63393
Castelsantangelo sul Nera MC 20 281 63674

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SE of Foligno (57155 inhabitants)
37 Km NE of Terni (111501 inhabitants)
57 Km SE of Perugia (166134 inhabitants)
63 Km NW of L'Aquila (69753 inhabitants)
64 Km W of Teramo (54892 inhabitants)
81 Km NE of Viterbo (67173 inhabitants)
91 Km N of Guidonia Montecelio (88673 inhabitants)
94 Km N of Tivoli (56533 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 2022-05-18
04:25:21		 42.806 12.9475 10 2022-05-18
04:32:11		 Sala Sismica INGV-Roma 104794711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-18 04:25:21 ± 0.06
Latitude 42.8060 ± 0.0027
Longitude 12.9475 ± 0.0049
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 104794711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 423
Semi-minor axis of confidence ellipse (meter) 252
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 117
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.12051
Epicentral distance of station farthest from the epicenter (degree) 0.41639
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 104794711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-18 04:32:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2022-05-18T04:25:31.18 0.1 undecidable manual S 24 27.9498 50 -0.15 95
IV.MF5.EHZ. 2022-05-18T04:25:30.29 1.0 negative manual P 64 46.2204 50 0.47 22
IV.LNSS.HHZ. 2022-05-18T04:25:29.56 0.1 undecidable manual S 161 23.754 112 -0.45 90
IV.GUMA.HHZ. 2022-05-18T04:25:29.51 0.6 undecidable manual P 48 42.4242 50 0.28 45
IV.CESI.HHZ. 2022-05-18T04:25:29.34 0.1 undecidable manual S 351 22.3554 113 -0.21 95
IV.SMA1.EHZ. 2022-05-18T04:25:29.33 1.0 negative manual P 122 37.1295 50 0.92 18
IV.MC2.EHZ. 2022-05-18T04:25:29.90 0.1 undecidable manual S 59 22.8549 113 0.19 96
IV.CSP1.EHZ. 2022-05-18T04:25:28.46 0.6 positive manual P 33 37.9287 50 -0.08 48
IV.ASSB.HHZ. 2022-05-18T04:25:28.10 0.6 undecidable manual P 318 35.2425 50 -0.02 48
IV.ARRO.EHZ. 2022-05-18T04:25:27.17 0.3 positive manual P 211 29.2485 50 -0.02 73
IV.MMO1.EHZ. 2022-05-18T04:25:27.57 0.6 positive manual P 71 32.5452 50 -0.14 47
IV.MOMA.HHZ. 2022-05-18T04:25:27.54 0.6 negative manual P 270 30.747 50 0.11 48
IV.MML1.EHZ. 2022-05-18T04:25:27.90 1.0 undecidable manual P 3 34.1436 50 -0.06 24
IV.CESI.HHZ. 2022-05-18T04:25:26.05 0.1 undecidable manual P 351 22.3554 113 0.07 98
IV.NRCA.HHZ. 2022-05-18T04:25:26.92 0.1 undecidable manual S 77 13.875 125 -0.06 100
IV.MC2.EHZ. 2022-05-18T04:25:26.15 0.1 undecidable manual P 59 22.8549 113 0.08 98
IV.GAVE.EHZ. 2022-05-18T04:25:26.87 0.1 undecidable manual S 199 13.3755 126 0.04 100
IV.LNSS.HHZ. 2022-05-18T04:25:26.19 0.1 undecidable manual P 161 23.754 112 -0.05 98
IV.FDMO.HHZ. 2022-05-18T04:25:26.84 0.1 undecidable manual P 24 27.9498 50 -0.16 95
IV.NRCA.HHZ. 2022-05-18T04:25:24.54 0.1 undecidable manual P 77 13.875 125 0.04 100
IV.GAVE.EHZ. 2022-05-18T04:25:24.72 0.1 undecidable manual P 199 13.3755 126 0.31 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.6 0.000426 0.12 AML other m 2022-05-18T04:25:27.08
IV.NRCA.HHE. ML:1.6 0.00040149999999999995 0.1 AML other m 2022-05-18T04:25:27.24
IV.GAVE.EHE. ML:1.9 0.000853 0.18 AML other m 2022-05-18T04:25:27.38
IV.GAVE.EHN. ML:1.6 0.000377 0.18 AML other m 2022-05-18T04:25:28.44
IV.LNSS.HHE. ML:1.4 0.000161 0.8 AML other m 2022-05-18T04:25:30.01
IV.LNSS.HHN. ML:1.4 0.0001545 0.22 AML other m 2022-05-18T04:25:30.16
IV.CESI.HHE. ML:1.1 0.0000807 0.12 AML other m 2022-05-18T04:25:30.28
IV.CESI.HHN. ML:1.3 0.0001425 1.02 AML other m 2022-05-18T04:25:30.54
IV.FDMO.HHE. ML:1.2 0.00007325 0.42 AML other m 2022-05-18T04:25:31.28
IV.FDMO.HHN. ML:1.0 0.000057300000000000004 0.7 AML other m 2022-05-18T04:25:31.49
IV.ARRO.EHN. ML:1.0 0.00004485 0.2 AML other m 2022-05-18T04:25:31.98
IV.MC2.EHE. ML:1.4 0.0001545 1.04 AML other m 2022-05-18T04:25:31.47
IV.MC2.EHN. ML:1.5 0.00019219999999999998 0.18 AML other m 2022-05-18T04:25:32.01
IV.ARRO.EHE. ML:1.0 0.000043349999999999997 0.62 AML other m 2022-05-18T04:25:32.37
IV.MMO1.EHN. ML:1.3 0.00009204999999999999 0.78 AML other m 2022-05-18T04:25:32.49
IV.MMO1.EHE. ML:1.3 0.00008854999999999998 0.86 AML other m 2022-05-18T04:25:32.48
IV.MML1.EHN. ML:1.0 0.00004514999999999999 0.72 AML other m 2022-05-18T04:25:33.37
IV.MML1.EHE. ML:1.2 0.00006654999999999999 0.26 AML other m 2022-05-18T04:25:33.38
IV.MOMA.HHN. ML:1.0 0.0000507 1.62 AML other m 2022-05-18T04:25:34.93
IV.ASSB.HHN. ML:0.9 0.00003275 1.34 AML other m 2022-05-18T04:25:34.86
IV.CSP1.EHN. ML:1.2 0.00006646000000000001 1.48 AML other m 2022-05-18T04:25:34.98
IV.ASSB.HHE. ML:0.9 0.000032099999999999994 1.5 AML other m 2022-05-18T04:25:35.94
IV.MOMA.HHE. ML:1.1 0.00005275000000000001 1.02 AML other m 2022-05-18T04:25:35.58
IV.SMA1.EHE. ML:0.9 0.0000312 0.3 AML other m 2022-05-18T04:25:36.64
IV.CSP1.EHE. ML:1.2 0.0000571 1.16 AML other m 2022-05-18T04:25:37.96
IV.SMA1.EHN. ML:0.8 0.00002685 1.04 AML other m 2022-05-18T04:25:39.83
IV.GUMA.HHE. ML:1.3 0.00006675000000000001 0.54 AML other m 2022-05-18T04:25:40.33
IV.GUMA.HHN. ML:1.4 0.00008215 0.36 AML other m 2022-05-18T04:25:44.58
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