Earthquake with magnitude of ML 0.4 on date 16-07-2020 and time 12:56:30 (UTC) in region 4 km NW Gubbio (PG)

A magnitude ML 0.4 earthquake occured in region: 4 km NW Gubbio (PG), on

  • 16-07-2020 12:56:30 (UTC)
  • 16-07-2020 14:56:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.38, 12.55 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.

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 4 32216 32216
Scheggia e Pascelupo PG 10 1393 33609
Pietralunga PG 11 2111 35720
Cantiano PU 12 2245 37965
Costacciaro PG 14 1216 39181
Sigillo PG 17 2404 41585
Montone PG 18 1680 43265
Umbertide PG 20 16681 59946
Fossato di Vico PG 20 2840 62786

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Perugia (166134 inhabitants)
49 Km N of Foligno (57155 inhabitants)
55 Km E of Arezzo (99543 inhabitants)
64 Km SW of Fano (60888 inhabitants)
66 Km SW of Pesaro (94582 inhabitants)
76 Km S of Rimini (147750 inhabitants)
83 Km W of Ancona (100861 inhabitants)
88 Km S of Cesena (96758 inhabitants)
91 Km N of Terni (111501 inhabitants)
99 Km E of Siena (53903 inhabitants)
Recent and historical Seismicity
Seismic hazard
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire ( that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
ML 0.4 2020-07-16
43.38 12.55 10 2020-07-16
Sala Sismica INGV-Roma 81073271
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2020-07-16 12:56:30 ± 0.26
Latitude 43.38 ± 0.02
Longitude 12.55 ± 0.02
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81073271


Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2246
Semi-minor axis of confidence ellipse (meter) 769
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 207
Circular confidence region, given by single value of horizontal uncertainty (meter) 2250
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30847
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information


Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 81073271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-16 13:02:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2020-07-16T12:56:37.27 0.3 undecidable manual P 67 0.3085 50 -0.34 68
IV.ATPI.EHZ. 2020-07-16T12:56:36.80 0.3 undecidable manual S 303 0.1277 124 0.19 73
IV.PE3.EHZ. 2020-07-16T12:56:35.63 3.0 positive manual P -0.27 0
IV.ATVO.HHZ. 2020-07-16T12:56:35.25 0.3 undecidable manual S 271 0.1034 130 -0.62 66
IV.MURB.HHZ. 2020-07-16T12:56:34.32 0.3 undecidable manual P 189 0.1187 126 0.36 71
IV.ATPI.EHZ. 2020-07-16T12:56:34.48 0.1 undecidable manual P 303 0.1277 124 0.36 94
IV.ATFO.HHZ. 2020-07-16T12:56:33.89 0.3 undecidable manual S 130 0.0216 166 -0.21 74
IV.ATVO.HHZ. 2020-07-16T12:56:33.59 0.1 undecidable manual P 271 0.1034 130 -0.1 100
IV.ATFO.HHZ. 2020-07-16T12:56:32.82 0.1 undecidable manual P 130 0.0216 166 0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHE. ML:0 5.3468505E-5 0.16 AML other m 2020-07-16T12:56:34.43
IV.ATFO.HHN. ML:0 5.443359E-5 0.1984 AML other m 2020-07-16T12:56:33.98
IV.ATVO.HHE. ML:0.4 2.9389435E-5 0.3392 AML other m 2020-07-16T12:56:35.36
IV.ATVO.HHN. ML:0.2 1.9154755E-5 0.2368 AML other m 2020-07-16T12:56:35.40
IV.MURB.HHE. ML:0.6 4.1283805E-5 0.2752 AML other m 2020-07-16T12:56:40.02
IV.MURB.HHN. ML:0.6 3.969248E-5 0.2432 AML other m 2020-07-16T12:56:36.84
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download