Earthquake with magnitude of ML 0.9 on date 19-04-2023 and time 07:54:30 (UTC) in region 1 km SW Cerreto di Spoleto (PG)

A magnitude ML 0.9 earthquake occured in region: 1 km SW Cerreto di Spoleto (PG), on

  • 19-04-2023 07:54:30 (UTC)
  • 19-04-2023 09:54:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8160, 12.9120 at 14 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.

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 1 1075 1075
Vallo di Nera PG 7 364 1439
Sellano PG 8 1079 2518
Campello sul Clitunno PG 11 2442 4960
Sant'Anatolia di Narco PG 11 564 5524
Poggiodomo PG 12 117 5641
Preci PG 13 724 6365
Scheggino PG 13 461 6826
Cascia PG 14 3217 10043
Trevi PG 15 8469 18512
Norcia PG 15 4957 23469
Spoleto PG 17 38218 61687
Monteleone di Spoleto PG 19 599 62286
Visso MC 19 1107 63393
Castel Ritaldi PG 20 3278 66671

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SE of Foligno (57155 inhabitants)
36 Km NE of Terni (111501 inhabitants)
53 Km SE of Perugia (166134 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
67 Km W of Teramo (54892 inhabitants)
79 Km NE of Viterbo (67173 inhabitants)
92 Km N of Guidonia Montecelio (88673 inhabitants)
95 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 0.9 2023-04-19
07:54:30
42.8163 12.9115 14 2023-04-19
08:03:30
Sala Sismica INGV-Roma 116509991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-19 07:54:30 ± 0.14
Latitude 42.8163 ± 0.0054
Longitude 12.9115 ± 0.0159
Depth (km) 14 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116509991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1122
Semi-minor axis of confidence ellipse (meter) 750
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 86
Circular confidence region, given by single value of horizontal uncertainty (meter) 1120.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 172
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 11
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.80309
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 116509991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-19 08:03:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SIRI.HNZ. 2023-04-19T07:56:06.75 3.0 undecidable manual Sg 20.969999 0
OT.CGL1.HHZ. 2023-04-19T07:56:05.86 3.0 undecidable manual Sn 0.09 0
CR.STON.BHZ. 2023-04-19T07:55:55.64 3.0 undecidable manual Sn -6.12 0
IV.VOBA.HNZ. 2023-04-19T07:55:49.00 3.0 undecidable manual Sn -5.36 0
7C.SPAOL.HNZ. 2023-04-19T07:55:43.19 3.0 positive manual Pg 14.57 0
IV.BDI.HHZ. 2023-04-19T07:55:28.29 3.0 undecidable manual Sg 6.49 0
RF.GEPF.HHZ. 2023-04-19T07:55:21.41 3.0 undecidable manual Pg 5.69 0
IV.BAG8.EHZ. 2023-04-19T07:55:19.88 3.0 undecidable manual Pg 7.41 0
IV.MSRU.HHZ. 2023-04-19T07:55:18.92 3.0 undecidable manual Pn -3.29 0
IV.PIPA.HHZ. 2023-04-19T07:55:18.75 3.0 positive manual Pn 0.17 0
IV.GATE.HHZ. 2023-04-19T07:55:17.00 3.0 undecidable manual Sn 0.31 0
IV.TDS.HHZ. 2023-04-19T07:55:14.69 3.0 undecidable manual Pn 1.35 0
IV.CADC.HNZ. 2023-04-19T07:55:12.28 3.0 undecidable manual Pg 2.95 0
IV.SIRI.HNZ. 2023-04-19T07:55:03.55 3.0 undecidable manual Pn -1.77 0
IV.MML1.EHZ. 2023-04-19T07:54:42.08 0.6 undecidable manual S 8 33.3444 98 0.24 47
IV.MF5.EHZ. 2023-04-19T07:54:41.79 3.0 negative manual Pg 2.49 0
IV.LNSS.HHZ. 2023-04-19T07:54:39.97 0.1 undecidable manual S 156 25.9518 103 0.08 99
IV.CESI.HHZ. 2023-04-19T07:54:38.71 0.6 undecidable manual S 358 20.9679 108 0.1 50
IV.NRCA.HHZ. 2023-04-19T07:54:37.37 0.6 undecidable manual S 83 16.5723 116 -0.17 50
IV.GAVE.EHZ. 2023-04-19T07:54:36.72 0.3 undecidable manual S 186 13.875 123 -0.18 74
IV.MML1.EHZ. 2023-04-19T07:54:36.52 0.1 undecidable manual P 8 33.3444 98 -0.49 90
IV.LNSS.HHZ. 2023-04-19T07:54:35.86 0.1 undecidable manual P 156 25.9518 103 -0.03 100
IV.CESI.HHZ. 2023-04-19T07:54:35.29 0.1 undecidable manual P 358 20.9679 108 0.14 99
IV.VCEL.EHZ. 2023-04-19T07:54:35.63 0.6 undecidable manual P 89.1441 -9.96 0
IV.GAVE.EHZ. 2023-04-19T07:54:34.37 0.1 positive manual P 186 13.875 123 0.2 99
IV.NRCA.HHZ. 2023-04-19T07:54:34.63 0.1 undecidable manual P 83 16.5723 116 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:1.0 0.00008635 0.58 AML other m 2023-04-19T07:54:37.01
IV.NRCA.HHE. ML:0.9 0.00006015 0.1 AML other m 2023-04-19T07:54:37.73
IV.GAVE.EHE. ML:1.0 0.00008094999999999999 0.86 AML other m 2023-04-19T07:54:37.30
IV.NRCA.HHN. ML:0.9 0.00005295 0.6 AML other m 2023-04-19T07:54:38.61
IV.CESI.HHE. ML:0.7 0.000029400000000000003 1.44 AML other m 2023-04-19T07:54:38.87
IV.CESI.HHN. ML:0.7 0.000029999999999999997 1.66 AML other m 2023-04-19T07:54:38.87
IV.LNSS.HHE. ML:0.9 0.000047350000000000006 1.1 AML other m 2023-04-19T07:54:40.61
IV.LNSS.HHN. ML:1.0 0.0000514 0.44 AML other m 2023-04-19T07:54:45.92
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