Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 19-10-2020 and time 04:38:18 (Italy) in region 6 km SW Sigillo (PG)

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

  • 19-10-2020 02:38:18 (UTC)
  • 19-10-2020 04:38:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3020, 12.6750 at 11 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
Sigillo PG 6 2404 2404
Fossato di Vico PG 7 2840 5244
Costacciaro PG 7 1216 6460
Gubbio PG 10 32216 38676
Scheggia e Pascelupo PG 12 1393 40069
Gualdo Tadino PG 12 15208 55277
Valfabbrica PG 17 3389 58666
Fabriano AN 19 31480 90146
Cantiano PU 20 2245 92391

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NE of Perugia (166134 inhabitants)
39 Km N of Foligno (57155 inhabitants)
67 Km SW of Fano (60888 inhabitants)
67 Km E of Arezzo (99543 inhabitants)
70 Km S of Pesaro (94582 inhabitants)
77 Km W of Ancona (100861 inhabitants)
82 Km N of Terni (111501 inhabitants)
85 Km S of Rimini (147750 inhabitants)
99 Km SE of Cesena (96758 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 2020-10-19
02:38:18		 43.3018 12.6747 11 2020-10-19
04:01:39		 Sala Sismica INGV-Roma 83899211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-19 02:38:18 ± 0.03
Latitude 43.3018 ± 0.0009
Longitude 12.6747 ± 0.0025
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83899211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 250
Semi-minor axis of confidence ellipse (meter) 120
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 271
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 13
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) 0.31656
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 83899211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-19 04:01:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2020-10-19T02:38:27.07 0.3 undecidable manual S 104 22.0668 90 0.03 74
IV.NARO.HHZ. 2020-10-19T02:38:25.60 0.3 undecidable manual P 348 35.1426 90 0.09 71
IV.SSFR.HHZ. 2020-10-19T02:38:25.72 0.1 undecidable manual S 30 17.2716 90 -0.02 99
IV.ATCC.EHZ. 2020-10-19T02:38:24.68 0.3 undecidable manual S 192 13.2756 96 0 75
IV.MURB.HHZ. 2020-10-19T02:38:24.56 0.3 undecidable manual S 250 12.876 101 -0.01 75
IV.ASSB.HHZ. 2020-10-19T02:38:24.29 0.3 undecidable manual P 183 28.749 90 -0.25 69
IV.ATFO.HHZ. 2020-10-19T02:38:23.94 0.1 undecidable manual S 311 10.9779 114 -0.16 98
IV.FRON.EHZ. 2020-10-19T02:38:23.90 3.0 undecidable manual P -0.06 0
IV.SNTG.HHZ. 2020-10-19T02:38:23.59 0.3 undecidable manual P 104 22.0668 90 0.08 73
IV.ATVO.HHZ. 2020-10-19T02:38:23.77 0.3 undecidable manual P 292 23.3544 90 0.07 73
IV.SSFR.HHZ. 2020-10-19T02:38:22.72 0.1 undecidable manual P 30 17.2716 90 -0.04 99
IV.ATCC.EHZ. 2020-10-19T02:38:22.16 0.1 undecidable manual P 192 13.2756 96 0.02 100
IV.MURB.HHZ. 2020-10-19T02:38:22.19 0.1 undecidable manual P 250 12.876 101 0.11 98
IV.ATFO.HHZ. 2020-10-19T02:38:21.88 0.1 undecidable manual P 311 10.9779 114 0.07 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:0.3 0.000026349999999999997 0.24 AML other m 2020-10-19T02:38:24.36
IV.ATCC.EHN. ML:0.7 0.000049699999999999995 0.22 AML other m 2020-10-19T02:38:24.79
IV.ATFO.HHE. ML:0.2 0.00001875 1.32 AML other m 2020-10-19T02:38:24.27
IV.MURB.HHN. ML:1.0 0.0001145 1.76 AML other m 2020-10-19T02:38:24.08
IV.MURB.HHE. ML:1.0 0.0001075 1.74 AML other m 2020-10-19T02:38:25.09
IV.ATCC.EHE. ML:0.6 0.000041599999999999995 1.06 AML other m 2020-10-19T02:38:25.16
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