Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 30-11-2020 and time 17:30:49 (Italy) in region 4 km W Monte Cavallo (MC)

A magnitude ML 1.0 earthquake occured in region: 4 km W Monte Cavallo (MC), on

  • 30-11-2020 16:30:49 (UTC)
  • 30-11-2020 17:30:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9830, 12.9580 at 13 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.

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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 4 145 145
Serravalle di Chienti MC 10 1070 1215
Pieve Torina MC 10 1458 2673
Sellano PG 11 1079 3752
Visso MC 12 1107 4859
Fiordimonte MC 12 202 5061
Muccia MC 13 915 5976
Preci PG 13 724 6700
Pievebovigliana MC 14 866 7566
Ussita MC 15 444 8010
Fiastra MC 17 559 8569
Sefro MC 18 422 8991
Cerreto di Spoleto PG 18 1075 10066
Acquacanina MC 19 121 10187
Valtopina PG 19 1398 11585
Castelsantangelo sul Nera MC 19 281 11866
Camerino MC 19 6974 18840
Nocera Umbra PG 20 5839 24679

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Foligno (57155 inhabitants)
48 Km E of Perugia (166134 inhabitants)
53 Km NE of Terni (111501 inhabitants)
71 Km NW of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
96 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
Bulletin
Rev1000 		ML 1.0 2020-11-30
16:30:49		 42.9827 12.958 13 2021-02-26
14:56:10		 Bollettino Sismico Italiano INGV 85333951
Reviewed
Rev100 		ML 1.1 2020-11-30
16:30:49		 42.9815 12.9572 12 2020-11-30
16:37:25		 Sala Sismica INGV-Roma 85108331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-30 16:30:49 ± 0.07
Latitude 42.9827 ± 0.0036
Longitude 12.9580 ± 0.0037
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85333951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 400
Semi-minor axis of confidence ellipse (meter) 133
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 198
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.03238
Epicentral distance of station farthest from the epicenter (degree) 0.42718
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 85333951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-10 09:50:00

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 85108331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-30 16:37:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2020-11-30T16:31:02.54 0.6 undecidable manual S 17 40.1265 94 0.09 48
IV.SNTG.HHE. 2020-11-30T16:30:59.92 0.6 undecidable manual S 357 30.2475 97 0.12 48
IV.MMO1.EHN. 2020-11-30T16:30:59.90 0.6 undecidable manual S 107 31.3464 97 -0.2 47
IV.CSP1.EHZ. 2020-11-30T16:30:58.16 0.6 undecidable manual S 59 23.3544 101 0.16 49
IV.PF6.EHZ. 2020-11-30T16:30:58.43 0.3 undecidable manual S 48 25.752 99 -0.19 70
IV.ASSB.HHZ. 2020-11-30T16:30:58.45 0.3 undecidable manual S 285 25.1526 100 -0.02 73
IV.ARRO.EHZ. 2020-11-30T16:30:57.54 1.0 undecidable manual P 199 47.4192 94 -0.44 22
IV.NRCA.HHZ. 2020-11-30T16:30:57.47 0.3 undecidable manual S 142 20.868 104 0.13 72
IV.MC2.EHZ. 2020-11-30T16:30:57.47 0.3 undecidable manual S 113 20.3685 105 0.26 71
IV.EL6.EHZ. 2020-11-30T16:30:56.99 0.6 undecidable manual P 17 40.1265 94 0.12 47
IV.ATCC.EHE. 2020-11-30T16:30:56.06 0.6 undecidable manual P 311 34.1436 96 0.11 47
IV.MOMA.HNZ. 2020-11-30T16:30:56.03 0.6 undecidable manual P 238 37.2294 95 -0.38 45
IV.MML1.EHE. 2020-11-30T16:30:55.55 0.6 undecidable manual S 4 14.5743 117 -0.21 48
IV.SNTG.HHE. 2020-11-30T16:30:55.34 0.6 undecidable manual P 357 30.2475 97 0 49
IV.MMO1.EHN. 2020-11-30T16:30:55.11 0.1 undecidable manual P 107 31.3464 97 -0.4 90
IV.GUMA.HNN. 2020-11-30T16:30:55.27 0.1 undecidable manual P 74 31.8459 96 -0.32 91
IV.FDMO.HHZ. 2020-11-30T16:30:55.00 0.6 undecidable manual S 60 12.0768 125 -0.19 48
IV.ASSB.HHZ. 2020-11-30T16:30:54.62 0.6 undecidable manual P 285 25.1526 100 0.05 48
IV.FEMA.HNN. 2020-11-30T16:30:54.50 0.6 undecidable manual S 107 7.7811 141 0.15 49
IV.NRCA.HHZ. 2020-11-30T16:30:54.01 0.3 undecidable manual P 142 20.868 104 0.09 73
IV.CSP1.EHZ. 2020-11-30T16:30:54.37 0.6 undecidable manual P 59 23.3544 101 0.07 49
IV.PF6.EHZ. 2020-11-30T16:30:54.77 0.1 undecidable manual P 48 25.752 99 0.11 97
IT.MTCL.HGN. 2020-11-30T16:30:53.59 0.3 undecidable manual S 70 3.5964 161 -0.22 73
IV.CESI.HHZ. 2020-11-30T16:30:53.84 0.3 undecidable manual S 300 4.995 154 -0.11 75
IV.MML1.EHE. 2020-11-30T16:30:53.18 0.3 undecidable manual P 4 14.5743 117 0.17 73
IV.MC2.EHZ. 2020-11-30T16:30:53.88 0.6 undecidable manual P 113 20.3685 105 0.04 49
IV.FDMO.HHZ. 2020-11-30T16:30:52.81 0.3 undecidable manual P 60 12.0768 125 0.13 74
IV.CESI.HHZ. 2020-11-30T16:30:52.19 0.1 undecidable manual P 300 4.995 154 0.23 97
IV.FEMA.HNN. 2020-11-30T16:30:52.42 0.3 undecidable manual P 107 7.7811 141 0.23 73
IT.MTCL.HGN. 2020-11-30T16:30:51.99 0.1 undecidable manual P 70 3.5964 161 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.1 0.00014549999999999999 1.5 AML other m 2020-11-30T16:30:53.97
IV.CESI.HHN. ML:1.2 0.00022 0.16 AML other m 2020-11-30T16:30:54.18
IV.FDMO.HHN. ML:1.2 0.0001635 0.2 AML other m 2020-11-30T16:30:55.23
IV.FDMO.HHE. ML:1.2 0.00013550000000000001 0.52 AML other m 2020-11-30T16:30:55.15
IV.ASSB.HHN. ML:0.7 0.000025791865 1.984 AML other m 2020-11-30T16:30:58.88
IV.ASSB.HHE. ML:0.7 0.000026044365 2.176 AML other m 2020-11-30T16:30:57.87
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