Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 13-12-2020 and time 05:05:37 (Italy) in region 7 km SW Monte Cavallo (MC)

A magnitude ML 0.6 earthquake occured in region: 7 km SW Monte Cavallo (MC), on

  • 13-12-2020 04:05:37 (UTC)
  • 13-12-2020 05:05:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9600, 12.9310 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 7 145 145
Sellano PG 8 1079 1224
Preci PG 13 724 1948
Serravalle di Chienti MC 13 1070 3018
Visso MC 13 1107 4125
Pieve Torina MC 14 1458 5583
Fiordimonte MC 16 202 5785
Cerreto di Spoleto PG 16 1075 6860
Muccia MC 17 915 7775
Pievebovigliana MC 17 866 8641
Ussita MC 17 444 9085
Trevi PG 17 8469 17554
Valtopina PG 18 1398 18952
Foligno PG 18 57155 76107
Castelsantangelo sul Nera MC 20 281 76388
Campello sul Clitunno PG 20 2442 78830

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km E of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
50 Km NE of Terni (111501 inhabitants)
71 Km W of Teramo (54892 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
99 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 0.6 2020-12-13
04:05:37		 42.96 12.931 11 2020-12-13
04:12:32		 Sala Sismica INGV-Roma 85389981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-13 04:05:37 ± 0.06
Latitude 42.9600 ± 0.0045
Longitude 12.9310 ± 0.0049
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 85389981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 526
Semi-minor axis of confidence ellipse (meter) 370
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 11
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.29588
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 85389981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-13 04:12:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2020-12-13T04:05:48.38 0.1 undecidable manual S 102 32.8449 50 0.04 95
IV.GAVE.HNZ. 2020-12-13T04:05:47.85 0.3 undecidable manual S 186 29.8479 50 0.3 68
IV.CSP1.EHZ. 2020-12-13T04:05:46.79 0.1 undecidable manual S 57 26.5512 50 0.11 94
IV.ASSB.HHZ. 2020-12-13T04:05:45.86 0.1 undecidable manual S 293 23.9538 50 -0.1 95
IV.NRCA.HNE. 2020-12-13T04:05:44.89 0.3 undecidable manual S 133 20.4684 50 -0.15 71
IV.MMO1.EHZ. 2020-12-13T04:05:43.63 0.3 undecidable manual P 102 32.8449 50 0.04 71
IV.FDMO.HHZ. 2020-12-13T04:05:43.37 0.1 undecidable manual S 56 15.2736 126 -0.25 94
IV.ASSB.HHZ. 2020-12-13T04:05:42.23 0.1 undecidable manual P 293 23.9538 50 0.02 97
IV.GAVE.HNZ. 2020-12-13T04:05:42.53 0.3 undecidable manual P 186 29.8479 50 -0.6 62
IV.FEMA.HNE. 2020-12-13T04:05:42.21 0.3 undecidable manual S 89 9.6792 139 0.05 74
IV.CSP1.EHZ. 2020-12-13T04:05:42.68 0.1 undecidable manual P 57 26.5512 50 0.05 96
IV.NRCA.HNE. 2020-12-13T04:05:41.64 0.1 undecidable manual P 133 20.4684 50 -0.04 97
IT.MTCL.HGE. 2020-12-13T04:05:41.31 0.1 undecidable manual S 56 6.6933 149 -0.25 95
IV.CESI.HHZ. 2020-12-13T04:05:41.35 0.1 undecidable manual S 337 5.3946 154 0.01 100
IV.FEMA.HNE. 2020-12-13T04:05:40.32 0.1 undecidable manual P 89 9.6792 139 0.3 94
IV.FDMO.HHZ. 2020-12-13T04:05:40.87 0.1 undecidable manual P 56 15.2736 126 0.01 98
IV.CESI.HHZ. 2020-12-13T04:05:39.74 0.1 undecidable manual P 337 5.3946 154 0.19 96
IT.MTCL.HGE. 2020-12-13T04:05:39.80 0.1 undecidable manual P 56 6.6933 149 0.13 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.4 0.0000397934995 0.0608 AML other m 2020-12-13T04:05:41.93
IV.CESI.HHN. ML:0.4 0.00004145989 0.0992 AML other m 2020-12-13T04:05:41.49
IV.ASSB.HHE. ML:0.7 0.000029420464999999998 0.1408 AML other m 2020-12-13T04:05:46.24
IV.ASSB.HHN. ML:0.8 0.00003523243 0.1216 AML other m 2020-12-13T04:05:46.11
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