Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 12-02-2020 and time 00:16:38 (Italy) in region 2 km S Visso (MC)

A magnitude ML 1.3 earthquake occured in region: 2 km S Visso (MC), on

  • 11-02-2020 23:16:38 (UTC)
  • 12-02-2020 00:16:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9150, 13.0940 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.

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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 2 1107 1107
Ussita MC 5 444 1551
Castelsantangelo sul Nera MC 5 281 1832
Preci PG 6 724 2556
Monte Cavallo MC 12 145 2701
Fiordimonte MC 14 202 2903
Norcia PG 14 4957 7860
Sellano PG 14 1079 8939
Bolognola MC 14 142 9081
Fiastra MC 14 559 9640
Acquacanina MC 15 121 9761
Pieve Torina MC 15 1458 11219
Pievebovigliana MC 17 866 12085
Cerreto di Spoleto PG 18 1075 13160
Muccia MC 19 915 14075
Montemonaco AP 19 604 14679

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Foligno (57155 inhabitants)
54 Km NE of Terni (111501 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
61 Km E of Perugia (166134 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
97 Km W of Montesilvano (53738 inhabitants)
98 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
Reviewed
Rev100 		ML 1.3 2020-02-11
23:16:38		 42.9153 13.0938 10 2020-02-11
23:20:23		 Sala Sismica INGV-Roma 76448031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-11 23:16:38 ± 0.07
Latitude 42.9153 ± 0.0045
Longitude 13.0938 ± 0.0049
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76448031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 433
Semi-minor axis of confidence ellipse (meter) 416
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 28
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.07015
Epicentral distance of station farthest from the epicenter (degree) 0.27699
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 76448031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-11 23:20:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2020-02-11T23:16:50.22 0.6 undecidable manual S 75 30.747 50 0.41 45
IV.GAVE.EHZ. 2020-02-11T23:16:49.40 0.3 undecidable manual S 213 29.6481 50 -0.1 72
IV.CESI.HHZ. 2020-02-11T23:16:46.18 0.6 undecidable manual S 303 18.2706 119 0.02 50
IV.MMO1.EHZ. 2020-02-11T23:16:45.92 0.6 undecidable manual S 95 18.9699 118 -0.46 45
IV.MF5.EHZ. 2020-02-11T23:16:45.24 1.0 positive manual P 75 30.747 50 0.04 24
IV.FDMO.HHZ. 2020-02-11T23:16:44.57 0.6 undecidable manual S 358 13.4754 127 -0.17 49
IV.GAVE.EHZ. 2020-02-11T23:16:44.91 0.6 negative manual P 213 29.6481 50 -0.12 48
IV.MC2.EHZ. 2020-02-11T23:16:43.62 0.6 undecidable manual S 93 7.7811 142 0.3 48
IV.NRCA.HHZ. 2020-02-11T23:16:43.69 0.6 undecidable manual S 170 9.1797 137 0.04 50
IV.CESI.HHZ. 2020-02-11T23:16:43.15 0.1 undecidable manual P 303 18.2706 119 0.05 99
IV.MMO1.EHZ. 2020-02-11T23:16:42.94 0.1 undecidable manual P 95 18.9699 118 -0.29 94
IV.FDMO.HHZ. 2020-02-11T23:16:42.24 0.1 positive manual P 358 13.4754 127 -0.04 100
IV.MC2.EHZ. 2020-02-11T23:16:41.64 0.1 undecidable manual P 93 7.7811 142 0.18 98
IV.NRCA.HHZ. 2020-02-11T23:16:41.78 0.1 undecidable manual P 170 9.1797 137 0.13 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.7 0.0006544999999999999 0.08 AML other m 2020-02-11T23:16:43.78
IV.NRCA.HHE. ML:1.6 0.00049 0.72 AML other m 2020-02-11T23:16:44.49
IV.FDMO.HHN. ML:1.1 0.0001275 1.26 AML other m 2020-02-11T23:16:44.67
IV.FDMO.HHE. ML:1.2 0.0001805 0.38 AML other m 2020-02-11T23:16:44.71
IV.GAVE.EHE. ML:1.2 0.00007575 0.36 AML other m 2020-02-11T23:16:50.16
IV.GAVE.EHN. ML:1.1 0.0000631 0.42 AML other m 2020-02-11T23:16:50.61
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