Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 20-04-2020 and time 17:07:39 (UTC) in region 5 km E Monte Cavallo (MC)

A magnitude ML 1.0 earthquake occured in region: 5 km E Monte Cavallo (MC), on

  • 20-04-2020 17:07:39 (UTC)
  • 20-04-2020 19:07:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9940, 13.0630 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
Monte Cavallo MC 5 145 145
Fiordimonte MC 5 202 347
Pieve Torina MC 6 1458 1805
Visso MC 7 1107 2912
Pievebovigliana MC 8 866 3778
Ussita MC 8 444 4222
Fiastra MC 9 559 4781
Acquacanina MC 10 121 4902
Muccia MC 10 915 5817
Serravalle di Chienti MC 13 1070 6887
Preci PG 13 724 7611
Castelsantangelo sul Nera MC 13 281 7892
Bolognola MC 13 142 8034
Camerino MC 16 6974 15008
Sellano PG 16 1079 16087
Sefro MC 19 422 16509

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Foligno (57155 inhabitants)
56 Km E of Perugia (166134 inhabitants)
59 Km NE of Terni (111501 inhabitants)
64 Km NW of Teramo (54892 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
95 Km S of Fano (60888 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 1.0 2020-04-20
17:07:39		 42.9945 13.0628 11 2020-04-20
17:13:16		 Sala Sismica INGV-Roma 78418651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-20 17:07:39 ± 0.08
Latitude 42.9945 ± 0.0045
Longitude 13.0628 ± 0.0074
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78418651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 568
Semi-minor axis of confidence ellipse (meter) 507
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.04587
Epicentral distance of station farthest from the epicenter (degree) 0.33545
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 78418651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-20 17:13:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-04-20T17:07:52.39 0.6 undecidable manual S 5 37.2294 90 0.32 45
IV.MF5.EHZ. 2020-04-20T17:07:51.50 0.3 undecidable manual S 91 32.2455 90 0.79 57
IV.SNTG.HHZ. 2020-04-20T17:07:50.09 0.6 undecidable manual S 341 30.5472 90 -0.18 46
IV.MMO1.EHZ. 2020-04-20T17:07:48.30 0.3 undecidable manual S 116 23.8539 91 -0.19 70
IV.NRCA.HHZ. 2020-04-20T17:07:46.81 0.3 undecidable manual S 167 18.3705 92 -0.2 71
IV.CSP1.EHZ. 2020-04-20T17:07:46.22 0.3 undecidable manual S 47 15.7731 93 -0.11 72
IV.MF5.EHZ. 2020-04-20T17:07:46.22 0.3 undecidable manual P 91 32.2455 90 0.18 69
IV.EL6.EHZ. 2020-04-20T17:07:46.63 0.1 undecidable manual P 5 37.2294 90 -0.19 90
IV.SNTG.HHZ. 2020-04-20T17:07:45.56 0.1 undecidable manual P 341 30.5472 90 -0.23 91
IV.CESI.HHZ. 2020-04-20T17:07:45.88 0.3 undecidable manual S 275 12.876 105 0.31 69
IV.MMO1.EHZ. 2020-04-20T17:07:44.55 0.1 undecidable manual P 116 23.8539 91 -0.21 93
IV.CESI.HHZ. 2020-04-20T17:07:43.17 0.1 undecidable manual P 275 12.876 105 0.1 97
IV.NRCA.HHZ. 2020-04-20T17:07:43.87 0.1 undecidable manual P 167 18.3705 92 -0.03 98
IV.FDMO.HHZ. 2020-04-20T17:07:43.88 0.1 undecidable manual S 23 5.0949 148 -0.04 100
IV.CSP1.EHZ. 2020-04-20T17:07:43.42 0.1 undecidable manual P 47 15.7731 93 -0.09 96
IV.FDMO.HHZ. 2020-04-20T17:07:42.21 0.1 undecidable manual P 23 5.0949 148 0.09 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.2 0.0002565 0.16 AML other m 2020-04-20T17:07:44.16
IV.FDMO.HHE. ML:1.0 0.0001385 0.48 AML other m 2020-04-20T17:07:44.09
IV.NRCA.HHN. ML:1.0 0.0000688 1.6 AML other m 2020-04-20T17:07:47.83
IV.NRCA.HHE. ML:1.0 0.00008395 0.22 AML other m 2020-04-20T17:07:47.46
IV.CESI.HHE. ML:0.5 0.000036960935 1.3824 AML other m 2020-04-20T17:07:46.14
IV.CESI.HHN. ML:0.8 0.000063092075 0.32 AML other m 2020-04-20T17:07:46.11
IV.CSP1.EHE. ML:0.9 0.000062837725 0.704 AML other m 2020-04-20T17:07:46.46
IV.CSP1.EHN. ML:1.1 0.000103819245 2.2144 AML other m 2020-04-20T17:07:46.35
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