Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 01-02-2020 and time 03:51:34 (Italy) in region 2 km SW Visso (MC)

A magnitude ML 1.1 earthquake occured in region: 2 km SW Visso (MC), on

  • 01-02-2020 02:51:34 (UTC)
  • 01-02-2020 03:51:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9200, 13.0750 at 8 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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
Preci PG 5 724 1831
Ussita MC 6 444 2275
Castelsantangelo sul Nera MC 7 281 2556
Monte Cavallo MC 10 145 2701
Sellano PG 12 1079 3780
Fiordimonte MC 13 202 3982
Pieve Torina MC 14 1458 5440
Norcia PG 14 4957 10397
Fiastra MC 15 559 10956
Acquacanina MC 15 121 11077
Bolognola MC 15 142 11219
Pievebovigliana MC 16 866 12085
Cerreto di Spoleto PG 17 1075 13160
Muccia MC 18 915 14075
Serravalle di Chienti MC 20 1070 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Foligno (57155 inhabitants)
53 Km NE of Terni (111501 inhabitants)
59 Km W of Teramo (54892 inhabitants)
60 Km E of Perugia (166134 inhabitants)
69 Km NW of L'Aquila (69753 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
97 Km NE of Viterbo (67173 inhabitants)
99 Km W of Montesilvano (53738 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 1.1 2020-02-01
02:51:34		 42.9197 13.0748 9 2020-02-01
02:56:41		 Sala Sismica INGV-Roma 76087101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-01 02:51:34 ± 0.1
Latitude 42.9197 ± 0.0036
Longitude 13.0748 ± 0.0049
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76087101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 399
Semi-minor axis of confidence ellipse (meter) 205
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 49
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) 143
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
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) 0.08364
Epicentral distance of station farthest from the epicenter (degree) 0.40649
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:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 76087101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-01 02:56:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2020-02-01T02:51:46.02 0.6 undecidable manual S 76 32.1456 105 0.24 46
IV.MNTT.EHZ. 2020-02-01T02:51:43.15 0.1 undecidable manual P 69 45.1215 50 0.2 91
IV.CSP1.EHZ. 2020-02-01T02:51:42.24 0.6 undecidable manual S 29 21.867 111 -0.12 48
IV.MMO1.EHZ. 2020-02-01T02:51:41.61 0.6 undecidable manual S 96 20.5683 112 -0.37 46
IV.CESI.HHZ. 2020-02-01T02:51:40.82 0.6 undecidable manual S 304 16.7721 117 0.07 49
IV.MF5.EHZ. 2020-02-01T02:51:40.70 0.1 undecidable manual P 76 32.1456 105 -0.2 93
IV.FDMO.HHZ. 2020-02-01T02:51:39.58 0.6 undecidable manual S 4 12.9759 123 -0.05 50
IV.CSP1.EHZ. 2020-02-01T02:51:38.83 0.6 negative manual P 29 21.867 111 -0.1 48
IV.NRCA.HHZ. 2020-02-01T02:51:38.74 0.1 undecidable manual S 161 10.0788 130 -0.08 99
IV.MC2.EHZ. 2020-02-01T02:51:38.92 0.1 undecidable manual S 96 9.2796 132 0.3 95
IV.MMO1.EHZ. 2020-02-01T02:51:38.48 0.1 undecidable manual P 96 20.5683 112 -0.23 94
IV.FDMO.HHZ. 2020-02-01T02:51:37.38 0.3 negative manual P 4 12.9759 123 0.03 75
IV.CESI.HHZ. 2020-02-01T02:51:37.99 0.1 undecidable manual P 304 16.7721 117 -0.01 99
IV.MC2.EHZ. 2020-02-01T02:51:36.90 0.1 undecidable manual P 96 9.2796 132 0.13 98
IV.NRCA.HHZ. 2020-02-01T02:51:36.92 0.1 undecidable manual P 161 10.0788 130 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.4 0.000367 0.12 AML other m 2020-02-01T02:51:38.94
IV.NRCA.HHE. ML:1.1 0.0001825 0.2 AML other m 2020-02-01T02:51:39.03
IV.FDMO.HHN. ML:0.8 0.0000639 1.48 AML other m 2020-02-01T02:51:39.00
IV.FDMO.HHE. ML:1.0 0.0001039 1.58 AML other m 2020-02-01T02:51:40.79
IV.CESI.HHE. ML:0.9 0.00007535 0.48 AML other m 2020-02-01T02:51:41.24
IV.CESI.HHN. ML:1.3 0.000191 0.2 AML other m 2020-02-01T02:51:41.11
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