Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 18-10-2020 and time 17:29:10 (Italy) in region 6 km NW Sellano (PG)

A magnitude ML 0.6 earthquake occured in region: 6 km NW Sellano (PG), on

  • 18-10-2020 15:29:10 (UTC)
  • 18-10-2020 17:29:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9430, 12.9040 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
Sellano PG 6 1079 1079
Monte Cavallo MC 10 145 1224
Preci PG 13 724 1948
Cerreto di Spoleto PG 14 1075 3023
Trevi PG 15 8469 11492
Serravalle di Chienti MC 15 1070 12562
Visso MC 15 1107 13669
Foligno PG 16 57155 70824
Pieve Torina MC 17 1458 72282
Campello sul Clitunno PG 17 2442 74724
Valtopina PG 18 1398 76122
Fiordimonte MC 18 202 76324
Ussita MC 19 444 76768
Muccia MC 19 915 77683
Vallo di Nera PG 20 364 78047
Spello PG 20 8645 86692
Pievebovigliana MC 20 866 87558

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km E of Foligno (57155 inhabitants)
46 Km E of Perugia (166134 inhabitants)
47 Km NE of Terni (111501 inhabitants)
73 Km W of Teramo (54892 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
88 Km NE of Viterbo (67173 inhabitants)
90 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 2020-10-18
15:29:10		 42.9432 12.9042 10 2020-10-18
15:39:00		 Sala Sismica INGV-Roma 83887221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-18 15:29:10 ± 0.06
Latitude 42.9432 ± 0.0054
Longitude 12.9042 ± 0.0086
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83887221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 895
Semi-minor axis of confidence ellipse (meter) 331
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 312
Circular confidence region, given by single value of horizontal uncertainty (meter) 900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.26530
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 83887221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-18 15:39:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.CANO.HHZ. 2020-10-18T15:30:39.15 3.0 undecidable manual Sg 10.61 0
IV.PTRJ.HNZ. 2020-10-18T15:30:11.94 3.0 undecidable manual Sn -3.71 0
IV.LRP.EHZ. 2020-10-18T15:29:59.23 3.0 undecidable manual Sg -0.6 0
IV.EUCT.HNZ. 2020-10-18T15:29:55.04 3.0 undecidable manual Pg 5.8 0
SI.BOSI.HHZ. 2020-10-18T15:29:52.15 3.0 negative manual Pg -1.69 0
GU.CANO.HHZ. 2020-10-18T15:29:52.18 3.0 undecidable manual Pg 1.62 0
IV.PTRJ.HHZ. 2020-10-18T15:29:39.92 3.0 negative manual Pn -3.4 0
IV.MNTV.HNZ. 2020-10-18T15:29:38.76 3.0 negative manual Pg 0.56 0
IT.PLTA.HNZ. 2020-10-18T15:29:37.96 3.0 undecidable manual Pn -2.4 0
IV.RCAV.EHZ. 2020-10-18T15:29:32.34 3.0 undecidable manual Pg 3.23 0
IV.OFFI.HHZ. 2020-10-18T15:29:25.61 3.0 undecidable manual Pg 2.05 0
IV.COR1.EHZ. 2020-10-18T15:29:23.12 3.0 undecidable manual S -3.14 0
IV.GAVE.HNN. 2020-10-18T15:29:20.35 0.6 undecidable manual S 182 27.8499 50 0.05 49
IV.SSFR.HHZ. 2020-10-18T15:29:20.36 3.0 undecidable manual S 1.85 0
IV.CSP1.EHZ. 2020-10-18T15:29:20.71 0.6 undecidable manual S 56 29.4483 50 -0.02 49
IV.FDMO.HHZ. 2020-10-18T15:29:17.19 0.6 undecidable manual S 55 18.0708 118 -0.06 50
IV.CSP1.EHZ. 2020-10-18T15:29:16.24 1.0 negative manual P 56 29.4483 50 0 25
IV.GAVE.HNN. 2020-10-18T15:29:15.92 0.1 undecidable manual P 182 27.8499 50 -0.08 97
IV.CESI.HHZ. 2020-10-18T15:29:14.06 0.6 undecidable manual S 0 6.8931 145 -0.19 49
IV.FDMO.HHZ. 2020-10-18T15:29:14.30 0.1 undecidable manual P 55 18.0708 118 0.06 99
TV.SF04.EHZ. 2020-10-18T15:29:13.27 3.0 undecidable manual P -1.39 0
IV.CESI.HHZ. 2020-10-18T15:29:12.62 0.1 undecidable manual P 0 6.8931 145 0.12 100
IV.PE3.EHZ. 2020-10-18T15:29:11.15 3.0 positive manual P -0.95 0
IV.MURB.HHZ. 2020-10-18T15:29:09.35 3.0 undecidable manual P 2.95 0
IV.CAFI.HHZ. 2020-10-18T15:29:07.42 3.0 negative manual P 0.46 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:0.7 0.00006934999999999999 0.16 AML other m 2020-10-18T15:29:14.22
IV.CESI.HHE. ML:0.6 0.00005935 0.66 AML other m 2020-10-18T15:29:14.22
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