Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 11-10-2023 and time 04:08:58 (UTC) in region 5 km NW Sellano (PG)

A magnitude ML 0.6 earthquake occured in region: 5 km NW Sellano (PG), on

  • 11-10-2023 04:08:58 (UTC)
  • 11-10-2023 06:08:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9190, 12.8820 at 12 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
Sellano PG 5 1079 1079
Cerreto di Spoleto PG 11 1075 2154
Trevi PG 12 8469 10623
Monte Cavallo MC 13 145 10768
Preci PG 14 724 11492
Campello sul Clitunno PG 14 2442 13934
Foligno PG 15 57155 71089
Vallo di Nera PG 17 364 71453
Visso MC 17 1107 72560
Serravalle di Chienti MC 18 1070 73630
Montefalco PG 19 5679 79309
Valtopina PG 19 1398 80707
Spello PG 19 8645 89352
Pieve Torina MC 20 1458 90810

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km E of Foligno (57155 inhabitants)
44 Km NE of Terni (111501 inhabitants)
45 Km E of Perugia (166134 inhabitants)
73 Km W of Teramo (54892 inhabitants)
76 Km NW of L'Aquila (69753 inhabitants)
84 Km NE of Viterbo (67173 inhabitants)
93 Km SW of Ancona (100861 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 0.6 2023-10-11
04:08:58		 42.9187 12.8823 12 2023-10-11
04:19:33		 Sala Sismica INGV-Roma 121975121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-11 04:08:58 ± 0.06
Latitude 42.9187 ± 0.0036
Longitude 12.8823 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121975121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 295
Semi-minor axis of confidence ellipse (meter) 287
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 218
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) 129
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.22663
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 121975121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-11 04:19:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2023-10-11T04:09:23.69 3.0 undecidable manual S 0.05 0
IV.GAVE.EHZ. 2023-10-11T04:09:07.28 0.3 undecidable manual S 178 25.1526 94 -0.04 97
IV.NRCA.HHZ. 2023-10-11T04:09:06.13 0.3 undecidable manual S 117 21.0678 96 -0.11 96
IV.MML1.EHZ. 2023-10-11T04:09:06.92 0.3 undecidable manual S 18 22.755 95 0.23 95
IV.FDMO.HHZ. 2023-10-11T04:09:06.13 0.3 undecidable manual S 52 21.1677 96 -0.12 95
IV.ASSB.HHZ. 2023-10-11T04:09:06.46 0.3 undecidable manual S 307 22.755 95 -0.23 94
IV.SNTG.HHZ. 2023-10-11T04:09:04.83 3.0 undecidable manual P -0.36 0
IV.ASSB.HHZ. 2023-10-11T04:09:03.05 0.3 undecidable manual P 307 22.755 95 -0.03 98
IV.GAVE.EHZ. 2023-10-11T04:09:03.44 0.3 undecidable manual P 178 25.1526 94 0 98
IT.MTCL.HGZ. 2023-10-11T04:09:03.93 0.3 undecidable manual S 49 12.6762 114 -0.12 98
IV.MML1.EHZ. 2023-10-11T04:09:03.14 0.3 undecidable manual P 18 22.755 95 0.06 98
IV.CESI.HHZ. 2023-10-11T04:09:03.32 0.3 undecidable manual S 11 9.7791 127 -0.06 100
IV.NRCA.HHZ. 2023-10-11T04:09:02.77 0.3 undecidable manual P 117 21.0678 96 -0.05 97
IV.FDMO.HHZ. 2023-10-11T04:09:02.71 0.3 undecidable manual P 52 21.1677 96 -0.12 96
IT.MTCL.HGZ. 2023-10-11T04:09:01.77 0.3 undecidable manual P 49 12.6762 114 0.22 96
IV.CESI.HHZ. 2023-10-11T04:09:01.33 0.3 undecidable manual P 11 9.7791 127 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.9 0.0001008 0.26 AML other m 2023-10-11T04:09:03.73
IV.CESI.HHN. ML:0.9 0.000084 1.82 AML other m 2023-10-11T04:09:04.93
IV.NRCA.HHN. ML:0.6 0.00002925 0.88 AML other m 2023-10-11T04:09:06.26
IV.NRCA.HHE. ML:0.6 0.00002955 1.34 AML other m 2023-10-11T04:09:06.98
IV.FDMO.HHE. ML:0.4 0.000012686565 0.16 AML other m 2023-10-11T04:09:06.86
IV.FDMO.HHN. ML:0.4 0.000012950786500000001 0.1792 AML other m 2023-10-11T04:09:06.59
IV.ASSB.HHE. ML:0.5 0.00002141283 0.1984 AML other m 2023-10-11T04:09:07.19
IV.ASSB.HHN. ML:0.5 0.0000180863 0.08 AML other m 2023-10-11T04:09:07.59
IV.GAVE.EHE. ML:0.7 0.0000302950345 0.1408 AML other m 2023-10-11T04:09:08.33
IV.GAVE.EHN. ML:0.8 0.00003732071 0.08 AML other m 2023-10-11T04:09:07.47
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