Earthquake with magnitude of ML 0.7 on date 10-05-2023 and time 03:52:26 (UTC) in region 6 km W Spoleto (PG)

A magnitude ML 0.7 earthquake occured in region: 6 km W Spoleto (PG), on

  • 10-05-2023 03:52:26 (UTC)
  • 10-05-2023 05:52:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7510, 12.6720 at 8 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
Spoleto PG 6 38218 38218
Castel Ritaldi PG 8 3278 41496
Campello sul Clitunno PG 12 2442 43938
Giano dell'Umbria PG 12 3846 47784
Acquasparta TR 12 4778 52562
Massa Martana PG 12 3770 56332
Sant'Anatolia di Narco PG 14 564 56896
Scheggino PG 14 461 57357
Trevi PG 16 8469 65826
Vallo di Nera PG 16 364 66190
Montefalco PG 16 5679 71869
Ferentillo TR 17 1913 73782
San Gemini TR 18 5018 78800
Montefranco TR 19 1276 80076
Montecastrilli TR 19 5022 85098
Gualdo Cattaneo PG 20 6155 91253

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km N of Terni (111501 inhabitants)
23 Km S of Foligno (57155 inhabitants)
46 Km SE of Perugia (166134 inhabitants)
59 Km NE of Viterbo (67173 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
84 Km N of Guidonia Montecelio (88673 inhabitants)
85 Km W of Teramo (54892 inhabitants)
88 Km N of Tivoli (56533 inhabitants)
97 Km N of Roma (2864731 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 0.7 2023-05-10
03:52:26
42.751 12.6718 8 2023-05-10
06:57:42
Sala Sismica INGV-Roma 117206761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-10 03:52:26 ± 0.04
Latitude 42.7510 ± 0.0018
Longitude 12.6718 ± 0.0037
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117206761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 329
Semi-minor axis of confidence ellipse (meter) 184
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 245
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.09173
Epicentral distance of station farthest from the epicenter (degree) 0.41729
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 117206761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-10 06:57:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHE. 2023-05-10T03:52:41.61 0.6 undecidable manual S 47 46.3203 50 0.02 47
IV.NRCA.HHZ. 2023-05-10T03:52:39.26 0.6 undecidable manual S 76 37.1295 50 0.1 47
IV.CESI.HNE. 2023-05-10T03:52:38.36 0.6 undecidable manual S 34 33.9438 50 0.06 48
IV.ASSB.HHZ. 2023-05-10T03:52:37.81 0.6 undecidable manual S 358 32.3454 105 0.02 48
IV.FDMO.HHE. 2023-05-10T03:52:35.06 0.1 undecidable manual P 47 46.3203 50 -0.02 95
IV.ARRO.EHZ. 2023-05-10T03:52:34.22 0.6 undecidable manual S 158 20.5683 112 0.34 46
IV.CESI.HNE. 2023-05-10T03:52:33.14 0.1 undecidable manual P 34 33.9438 50 -0.04 96
IV.GAVE.HNZ. 2023-05-10T03:52:33.26 0.6 undecidable manual S 110 19.2696 114 -0.21 48
IV.NRCA.HHZ. 2023-05-10T03:52:33.58 0.6 undecidable manual P 76 37.1295 50 -0.09 47
IV.LNSS.HNN. 2023-05-10T03:52:33.14 0.1 undecidable manual P 119 34.2435 50 -0.08 95
IV.ASSB.HHZ. 2023-05-10T03:52:32.92 0.1 undecidable manual P 358 32.3454 105 0.04 97
IV.CESX.HHZ. 2023-05-10T03:52:32.57 0.6 undecidable manual S 204 17.2716 116 -0.27 47
IT.GNU.HGZ. 2023-05-10T03:52:30.66 0.6 undecidable manual S 305 10.1787 130 -0.09 50
IV.CESX.HHZ. 2023-05-10T03:52:30.14 0.6 negative manual P 204 17.2716 116 0.11 49
IV.GAVE.HNZ. 2023-05-10T03:52:30.37 0.1 undecidable manual P 110 19.2696 114 -0.02 99
IV.ARRO.EHZ. 2023-05-10T03:52:30.69 0.1 undecidable manual P 158 20.5683 112 0.06 98
IT.GNU.HGZ. 2023-05-10T03:52:28.88 0.1 undecidable manual P 305 10.1787 130 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESX.HHN. ML:1.0 0.0000885 0.78 AML other m 2023-05-10T03:52:33.65
IV.CESX.HHE. ML:1.0 0.00007764999999999999 0.86 AML other m 2023-05-10T03:52:33.36
IV.ASSB.HHN. ML:0.6 0.000019900000000000003 0.44 AML other m 2023-05-10T03:52:39.97
IV.ASSB.HHE. ML:0.6 0.00002165 0.48 AML other m 2023-05-10T03:52:40.30
IV.NRCA.HHE. ML:0.6 0.000017049999999999998 0.54 AML other m 2023-05-10T03:52:40.23
IV.NRCA.HHN. ML:0.6 0.00001395 0.72 AML other m 2023-05-10T03:52:41.47
IV.ARRO.EHE. ML:0.4 0.000019531735 0.1792 AML other m 2023-05-10T03:52:36.16
IV.ARRO.EHN. ML:0.4 0.0000194009 0.2208 AML other m 2023-05-10T03:52:34.52
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