Earthquake with magnitude of ML 0.1 on date 31-07-2020 and time 23:38:43 (Italy) in region 6 km NW Gubbio (PG)

A magnitude ML 0.1 earthquake occured in region: 6 km NW Gubbio (PG), on

  • 31-07-2020 21:38:43 (UTC)
  • 31-07-2020 23:38:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.39, 12.52 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Gubbio PG 6 32216 32216
Pietralunga PG 9 2111 34327
Scheggia e Pascelupo PG 12 1393 35720
Cantiano PU 12 2245 37965
Costacciaro PG 16 1216 39181
Montone PG 16 1680 40861
Umbertide PG 19 16681 57542
Sigillo PG 19 2404 59946
Cagli PU 20 8731 68677

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NE of Perugia (166134 inhabitants)
51 Km NW of Foligno (57155 inhabitants)
52 Km E of Arezzo (99543 inhabitants)
64 Km SW of Fano (60888 inhabitants)
66 Km SW of Pesaro (94582 inhabitants)
75 Km S of Rimini (147750 inhabitants)
84 Km W of Ancona (100861 inhabitants)
86 Km S of Cesena (96758 inhabitants)
93 Km N of Terni (111501 inhabitants)
97 Km E of Siena (53903 inhabitants)
100 Km SE of Forlì (117913 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
Bulletin
Rev1000
ML 0.1 2020-07-31
21:38:43
43.39 12.52 8 2020-11-19
12:36:59
Bollettino Sismico Italiano INGV 82587101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-31 21:38:43 ± 0.1
Latitude 43.39 ± 0.00
Longitude 12.52 ± 0.00
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82587101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 269
Semi-minor axis of confidence ellipse (meter) 77
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 126
Circular confidence region, given by single value of horizontal uncertainty (meter) 270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.04317
Epicentral distance of station farthest from the epicenter (degree) 0.22393
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.1

Field Value
Value 0.1
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 82587101
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-03 13:43:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2020-07-31T21:38:52.68 0.3 undecidable manual S 158 0.2239 109 0.21 71
IV.NARO.HHZ. 2020-07-31T21:38:52.05 0.3 undecidable manual S 11 0.2221 109 -0.34 69
IV.PIEI.HNN. 2020-07-31T21:38:49.60 0.3 undecidable manual S 3 0.143 118 0.01 75
IV.NARO.HHZ. 2020-07-31T21:38:48.20 0.3 undecidable manual P 11 0.2221 109 -0.37 68
IV.ATLO.EHE. 2020-07-31T21:38:48.62 0.1 undecidable manual S 228 0.1142 123 -0.03 100
IV.ATCC.EHZ. 2020-07-31T21:38:48.56 0.3 undecidable manual P 158 0.2239 109 -0.06 73
IV.ATPC.HHE. 2020-07-31T21:38:48.50 0.3 undecidable manual S 331 0.1007 127 0.31 71
IV.ATSC.EHE. 2020-07-31T21:38:48.93 0.3 undecidable manual S 75 0.1223 122 0.04 75
IV.TB03.DHZ. 2020-07-31T21:38:47.62 0.6 undecidable manual S 276 0.0827 132 -0.05 50
IV.TB02.DHZ.01 2020-07-31T21:38:47.75 0.3 undecidable manual S 255 0.0863 131 -0.01 76
IV.TB01.DHZ. 2020-07-31T21:38:47.14 0.3 undecidable manual S 260 0.0648 139 -0.05 75
IV.ATVO.HHZ. 2020-07-31T21:38:47.57 0.3 undecidable manual S 263 0.0854 131 -0.18 73
IV.ATBU.EHZ. 2020-07-31T21:38:47.96 0.3 undecidable manual S 12 0.0845 131 0.23 72
IV.ATBU.EHZ. 2020-07-31T21:38:46.14 0.3 undecidable manual P 12 0.0845 131 0.25 72
IV.ATSC.EHE. 2020-07-31T21:38:46.58 0.3 undecidable manual P 75 0.1223 122 0.02 75
IV.ATFO.HHZ. 2020-07-31T21:38:46.45 0.3 undecidable manual S 127 0.0432 150 -0.25 72
IV.ATLO.EHE. 2020-07-31T21:38:46.47 0.1 undecidable manual P 228 0.1142 123 0.05 99
IV.PIEI.HNN. 2020-07-31T21:38:46.96 0.3 undecidable manual P 3 0.143 118 0 75
IV.ATPC.HHE. 2020-07-31T21:38:46.33 0.3 undecidable manual P 331 0.1007 127 0.17 73
IV.TB03.DHZ. 2020-07-31T21:38:45.74 0.1 undecidable manual P 276 0.0827 132 -0.11 99
IV.TB02.DHZ.01 2020-07-31T21:38:45.97 0.3 undecidable manual P 255 0.0863 131 0.07 75
IV.TB01.DHZ. 2020-07-31T21:38:45.64 0.1 undecidable manual P 260 0.0648 139 0.07 100
IV.ATFO.HHZ. 2020-07-31T21:38:45.29 0.3 undecidable manual P 127 0.0432 150 -0.01 76
IV.ATVO.HHZ. 2020-07-31T21:38:45.93 0.3 undecidable manual P 263 0.0854 131 0.03 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHN. ML:0.1 1.755E-5 0.44 AML other m 2020-07-31T21:38:47.69
IV.ATVO.HHE. ML:0 1.555E-5 0.7 AML other m 2020-07-31T21:38:47.80
IV.ATFO.HHN. ML:0 3.9785985E-5 0.2688 AML other m 2020-07-31T21:38:46.47
IV.ATFO.HHE. ML:0 4.427869E-5 0.5504 AML other m 2020-07-31T21:38:46.49
IV.NARO.HHE. ML:-0.1 6.757867E-6 0.0512 AML other m 2020-07-31T21:38:52.50
IV.NARO.HHN. ML:-0.1 5.322167E-6 0.1024 AML other m 2020-07-31T21:38:52.65
IV.ATCC.EHE. ML:0.2 8.8714355E-6 1.1008 AML other m 2020-07-31T21:38:53.50
IV.ATCC.EHN. ML:0.2 8.5556855E-6 0.896 AML other m 2020-07-31T21:38:52.99
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download