Earthquake with magnitude of ML 0.5 on date 03-10-2023 and time 06:15:15 (Italy) in region 7 km N Sellano (PG)

A magnitude ML 0.5 earthquake occured in region: 7 km N Sellano (PG), on

  • 03-10-2023 04:15:15 (UTC)
  • 03-10-2023 06:15:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9490, 12.9140 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
Sellano PG 7 1079 1079
Monte Cavallo MC 9 145 1224
Preci PG 13 724 1948
Serravalle di Chienti MC 14 1070 3018
Cerreto di Spoleto PG 14 1075 4093
Visso MC 14 1107 5200
Pieve Torina MC 15 1458 6658
Trevi PG 16 8469 15127
Foligno PG 17 57155 72282
Fiordimonte MC 17 202 72484
Valtopina PG 18 1398 73882
Campello sul Clitunno PG 18 2442 76324
Ussita MC 18 444 76768
Muccia MC 18 915 77683
Pievebovigliana MC 19 866 78549

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Foligno (57155 inhabitants)
46 Km E of Perugia (166134 inhabitants)
48 Km NE of Terni (111501 inhabitants)
72 Km W of Teramo (54892 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
100 Km S of Fano (60888 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 0.5 2023-10-03
04:15:15
42.9493 12.9145 8 2023-10-03
04:20:42
Sala Sismica INGV-Roma 121693961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-03 04:15:15 ± 0.6
Latitude 42.9493 ± 0.0135
Longitude 12.9145 ± 0.0209
Depth (km) 8 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121693961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1644
Semi-minor axis of confidence ellipse (meter) 1279
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 52
Circular confidence region, given by single value of horizontal uncertainty (meter) 1640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 225
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18616
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 3
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 121693961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-03 04:20:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSNT.HHZ. 2023-10-03T04:15:38.89 3.0 undecidable manual Pg 6.11 0
IT.RMMM.HGZ. 2023-10-03T04:15:23.73 3.0 positive manual P 0.03 0
IV.NRCA.HHZ. 2023-10-03T04:15:22.44 0.6 undecidable manual S 128 20.6682 111 -0.37 46
IV.FDMO.HHZ. 2023-10-03T04:15:21.74 0.1 undecidable manual S 55 17.0718 115 0.11 97
IV.ATCC.EHZ. 2023-10-03T04:15:20.66 3.0 undecidable manual P 0.13 0
IV.NRCA.HHZ. 2023-10-03T04:15:19.99 0.3 undecidable manual P 128 20.6682 111 0.43 68
IV.FDMO.HHZ. 2023-10-03T04:15:18.69 0.1 undecidable manual P 55 17.0718 115 -0.19 96
IV.MML1.EHZ. 2023-10-03T04:15:18.89 3.0 positive manual P 0.05 0
IV.CESI.HHZ. 2023-10-03T04:15:18.67 0.1 undecidable manual S 353 6.1938 142 0.06 100
IV.CESI.HHZ. 2023-10-03T04:15:17.02 0.1 undecidable manual P 353 6.1938 142 -0.11 99
IV.SMA1.EHZ. 2023-10-03T04:15:16.02 3.0 positive manual P -0.27 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:0.6 0.00006965 1.12 AML other m 2023-10-03T04:15:18.93
IV.CESI.HHE. ML:0.5 0.00005405 1.36 AML other m 2023-10-03T04:15:19.84
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