Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 12-02-2020 and time 19:41:07 (Italy) in region 4 km W Visso (MC)

A magnitude ML 0.8 earthquake occured in region: 4 km W Visso (MC), on

  • 12-02-2020 18:41:07 (UTC)
  • 12-02-2020 19:41:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9190, 13.0400 at 12 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
Visso MC 4 1107 1107
Preci PG 4 724 1831
Ussita MC 9 444 2275
Monte Cavallo MC 9 145 2420
Castelsantangelo sul Nera MC 10 281 2701
Sellano PG 10 1079 3780
Fiordimonte MC 14 202 3982
Pieve Torina MC 14 1458 5440
Norcia PG 15 4957 10397
Cerreto di Spoleto PG 15 1075 11472
Fiastra MC 16 559 12031
Pievebovigliana MC 17 866 12897
Acquacanina MC 17 121 13018
Bolognola MC 18 142 13160
Muccia MC 18 915 14075
Serravalle di Chienti MC 19 1070 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
51 Km NE of Terni (111501 inhabitants)
57 Km E of Perugia (166134 inhabitants)
61 Km W of Teramo (54892 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
95 Km NE of Viterbo (67173 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 0.8 2020-02-12
18:41:07		 42.9188 13.0403 12 2020-07-18
21:08:31		 Bollettino Sismico Italiano INGV 77923761
Reviewed
Rev100 		ML 0.8 2020-02-12
18:41:07		 42.9175 13.0392 11 2020-02-12
19:00:53		 Sala Sismica INGV-Roma 76467381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-12 18:41:07 ± 0.08
Latitude 42.9188 ± 0.0027
Longitude 13.0403 ± 0.0061
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 77923761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 392
Semi-minor axis of confidence ellipse (meter) 286
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.36063
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 76467381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-12 19:00:53

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 77923761
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-04-05 16:28:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SBPO.HNZ. 2020-02-12T18:42:29.27 3.0 undecidable manual Sg 9.45 0
IV.CRJA.HHZ. 2020-02-12T18:42:24.68 3.0 negative manual Pg 26.190001 0
IV.SERM.HNZ. 2020-02-12T18:42:17.99 3.0 undecidable manual Sg 2.05 0
IV.PLMA.HHZ. 2020-02-12T18:41:37.36 3.0 undecidable manual Pn -1.23 0
IV.VIVA.HHZ. 2020-02-12T18:41:30.78 3.0 undecidable manual Sg 5.62 0
IV.SMA1.EHN. 2020-02-12T18:41:20.82 0.6 undecidable manual S 143 40.0266 92 0.16 46
IV.LNSS.HNZ. 2020-02-12T18:41:19.62 0.6 undecidable manual S 180 35.0427 92 0.28 45
IV.MMO1.EHZ. 2020-02-12T18:41:16.24 0.3 undecidable manual S 95 23.3544 95 0.01 73
IV.MML1.HNE. 2020-02-12T18:41:15.73 0.3 undecidable manual S 346 22.2555 95 -0.22 71
IV.CSP1.EHE. 2020-02-12T18:41:15.90 0.6 undecidable manual S 35 23.3544 95 -0.33 46
IV.CESI.HHZ. 2020-02-12T18:41:14.07 0.3 undecidable manual S 311 14.5743 108 0.16 72
IV.LNSS.HNZ. 2020-02-12T18:41:14.32 0.1 undecidable manual P 180 35.0427 92 -0.03 96
IV.SMA1.EHN. 2020-02-12T18:41:14.70 0.1 undecidable manual P 143 40.0266 92 -0.41 88
IV.MC2.EHZ. 2020-02-12T18:41:13.72 0.6 undecidable manual S 94 12.0768 117 0.41 46
IV.GUMA.HNN. 2020-02-12T18:41:13.90 0.6 undecidable manual P 56 28.749 93 0.52 43
IV.FDMO.HHZ. 2020-02-12T18:41:13.54 0.3 undecidable manual S 16 13.5753 111 -0.13 73
IV.MMO1.EHZ. 2020-02-12T18:41:12.41 0.3 undecidable manual P 95 23.3544 95 -0.14 72
IT.MTCL.HGZ. 2020-02-12T18:41:12.38 0.3 undecidable manual S 338 8.9799 131 -0.22 72
IV.MML1.HNE. 2020-02-12T18:41:12.33 0.1 undecidable manual P 346 22.2555 95 -0.06 97
IV.NRCA.HNN. 2020-02-12T18:41:12.83 0.3 undecidable manual S 148 11.1777 121 -0.27 71
IV.CSP1.EHE. 2020-02-12T18:41:12.65 0.3 undecidable manual P 35 23.3544 95 0.1 72
IV.FEMA.HNZ. 2020-02-12T18:41:11.87 0.3 undecidable manual S 9 4.8951 151 -0.05 75
IV.FDMO.HHZ. 2020-02-12T18:41:11.11 0.1 undecidable manual P 16 13.5753 111 0.04 99
IV.CESI.HHZ. 2020-02-12T18:41:11.41 0.1 undecidable manual P 311 14.5743 108 0.19 96
IV.FEMA.HNZ. 2020-02-12T18:41:10.30 0.6 undecidable manual P 9 4.8951 151 0.24 48
IV.NRCA.HNN. 2020-02-12T18:41:10.74 0.1 undecidable manual P 148 11.1777 121 0 100
IV.SRES.HHZ. 2020-02-12T18:41:10.42 3.0 positive manual P 0.54 0
IV.MC2.EHZ. 2020-02-12T18:41:10.94 0.1 undecidable manual P 94 12.0768 117 0.08 98
IT.MTCL.HGZ. 2020-02-12T18:41:10.52 0.1 undecidable manual P 338 8.9799 131 0.06 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.0 0.00008858338 0.1408 AML other m 2020-02-12T18:41:13.72
IV.FDMO.HHN. ML:0.6 0.000040398445 0.1024 AML other m 2020-02-12T18:41:13.70
IV.CESI.HHN. ML:1.1 0.00010506087000000001 0.1024 AML other m 2020-02-12T18:41:14.27
IV.CESI.HHE. ML:0.7 0.000045365465 0.1024 AML other m 2020-02-12T18:41:14.39
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