Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 16-07-2020 and time 19:47:18 (Italy) in region 9 km NE Valfabbrica (PG)

A magnitude ML 0.8 earthquake occured in region: 9 km NE Valfabbrica (PG), on

  • 16-07-2020 17:47:18 (UTC)
  • 16-07-2020 19:47:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2390, 12.6350 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
Valfabbrica PG 9 3389 3389
Fossato di Vico PG 12 2840 6229
Gualdo Tadino PG 12 15208 21437
Sigillo PG 14 2404 23841
Gubbio PG 14 32216 56057
Costacciaro PG 15 1216 57273
Assisi PG 19 28299 85572
Scheggia e Pascelupo PG 19 1393 86965
Nocera Umbra PG 19 5839 92804

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Perugia (166134 inhabitants)
32 Km N of Foligno (57155 inhabitants)
66 Km E of Arezzo (99543 inhabitants)
74 Km SW of Fano (60888 inhabitants)
75 Km N of Terni (111501 inhabitants)
78 Km SW of Pesaro (94582 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
92 Km S of Rimini (147750 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 0.8 2020-07-16
17:47:18		 43.2387 12.6347 10 2020-07-16
17:53:55		 Sala Sismica INGV-Roma 81077831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-16 17:47:18 ± 0.05
Latitude 43.2387 ± 0.0018
Longitude 12.6347 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81077831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 439
Semi-minor axis of confidence ellipse (meter) 170
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.37412
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 81077831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-16 17:53:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
ST.RONC.HNZ. 2020-07-16T17:48:43.37 3.0 undecidable manual Sn 3.18 0
IV.CADC.HNZ. 2020-07-16T17:48:42.44 3.0 undecidable manual Sg 8.09 0
ST.RONC.EHZ. 2020-07-16T17:48:06.62 3.0 negative manual Pg 13.34 0
XK.GIZZ.HHZ. 2020-07-16T17:48:00.27 3.0 positive manual Pn 0.47 0
IV.AGLI.HHZ. 2020-07-16T17:47:52.75 3.0 undecidable manual Pg 6.05 0
IV.CMPR.HHZ. 2020-07-16T17:47:36.40 3.0 undecidable manual Pn -2.77 0
IV.NARO.HHZ. 2020-07-16T17:47:33.03 0.3 undecidable manual S 354 41.5251 50 0.14 71
IV.PAOL.HHZ. 2020-07-16T17:47:32.22 3.0 negative manual Pg 5.44 0
IV.PIEI.HHZ. 2020-07-16T17:47:30.95 0.3 undecidable manual S 346 33.9438 50 0.08 73
IV.MRB1.HHZ. 2020-07-16T17:47:28.27 3.0 negative manual Pn 0 0
IV.NARO.HHZ. 2020-07-16T17:47:27.11 0.6 undecidable manual P 354 41.5251 50 0.09 48
IV.TB01.DHZ.01 2020-07-16T17:47:27.47 0.3 undecidable manual S 315 22.5552 113 -0.02 75
IV.ATVO.HHZ. 2020-07-16T17:47:27.84 0.3 undecidable manual S 311 24.3534 111 -0.22 72
IV.ASSB.HHN. 2020-07-16T17:47:27.21 0.1 undecidable manual S 175 21.867 113 -0.04 100
IV.LRP.EHZ. 2020-07-16T17:47:26.00 3.0 undecidable manual S -4.66 0
IV.ATSC.EHE. 2020-07-16T17:47:26.89 0.3 undecidable manual S 11 20.9679 114 -0.09 74
IV.ATFO.HHZ. 2020-07-16T17:47:25.23 0.3 undecidable manual S 340 15.0738 122 0.05 76
IV.PIEI.HHZ. 2020-07-16T17:47:25.95 0.1 undecidable manual P 346 33.9438 50 0.1 97
IV.FRON.EHZ. 2020-07-16T17:47:25.19 0.1 undecidable manual P 13 31.8459 50 -0.34 92
IV.ATVO.HHZ. 2020-07-16T17:47:24.13 0.1 undecidable manual P 311 24.3534 111 -0.1 98
IV.LAV9.HNZ. 2020-07-16T17:47:24.88 3.0 undecidable manual S -5.48 0
IV.ATSC.EHE. 2020-07-16T17:47:23.65 0.1 undecidable manual P 11 20.9679 114 0.04 100
IV.ASSB.HHN. 2020-07-16T17:47:23.71 0.1 undecidable manual P 175 21.867 113 -0.05 100
IV.TB01.DHZ.01 2020-07-16T17:47:23.84 0.1 undecidable manual P 315 22.5552 113 -0.06 99
IV.MURB.HHZ. 2020-07-16T17:47:23.64 0.3 undecidable manual S 287 9.2796 136 0.04 76
IV.ATFO.HHZ. 2020-07-16T17:47:22.77 0.3 undecidable manual P 340 15.0738 122 0.2 73
IV.ATCC.HNN. 2020-07-16T17:47:22.79 0.3 undecidable manual S 176 5.994 148 -0.08 76
IV.MURB.HHZ. 2020-07-16T17:47:21.79 0.1 undecidable manual P 287 9.2796 136 0.14 100
IV.ATCC.HNN. 2020-07-16T17:47:21.42 0.1 undecidable manual P 176 5.994 148 0.19 99
IV.RMP.HHZ. 2020-07-16T17:47:09.90 3.0 positive manual P -1.82 0
IV.VCEL.EHZ. 2020-07-16T17:47:04.44 3.0 negative manual P -0.62 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HHE. ML:1.8 0.0008520000000000001 0.22 AML other m 2020-07-16T17:47:24.14
IV.MURB.HNE. ML:1.8 0.0008195 0.24 AML other m 2020-07-16T17:47:24.14
IV.MURB.HNN. ML:1.6 0.000605 1.36 AML other m 2020-07-16T17:47:24.85
IV.MURB.HHN. ML:1.6 0.0006374999999999999 1.32 AML other m 2020-07-16T17:47:24.86
IV.ATFO.HHN. ML:0.7 0.00004885 0.78 AML other m 2020-07-16T17:47:25.54
IV.ATFO.HHE. ML:0.7 0.000043249999999999994 0.9 AML other m 2020-07-16T17:47:26.04
IV.ATVO.HHE. ML:0.5 0.0000217 1.92 AML other m 2020-07-16T17:47:27.98
IV.ATVO.HHN. ML:0.6 0.00002295 0.7 AML other m 2020-07-16T17:47:28.34
IV.FRON.EHE. ML:0.8 0.000028499999999999998 1.46 AML other m 2020-07-16T17:47:30.03
IV.FRON.EHN. ML:1.0 0.0000427 0.62 AML other m 2020-07-16T17:47:31.38
IV.PIEI.HHN. ML:0.6 0.0000146 0.82 AML other m 2020-07-16T17:47:31.12
IV.ARVD.HHN. ML:0.7 0.00001845 1.36 AML other m 2020-07-16T17:47:32.24
IV.PIEI.HHE. ML:0.8 0.000026450000000000003 0.1 AML other m 2020-07-16T17:47:33.07
IV.ARVD.HHE. ML:0.6 0.00001685 0.58 AML other m 2020-07-16T17:47:33.41
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