Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 25-03-2020 and time 06:15:47 (Italy) in region 4 km W Visso (MC)

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

  • 25-03-2020 05:15:47 (UTC)
  • 25-03-2020 06:15:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9480, 13.0490 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
Visso MC 4 1107 1107
Monte Cavallo MC 6 145 1252
Ussita MC 7 444 1696
Preci PG 8 724 2420
Castelsantangelo sul Nera MC 10 281 2701
Fiordimonte MC 11 202 2903
Pieve Torina MC 11 1458 4361
Sellano PG 12 1079 5440
Pievebovigliana MC 13 866 6306
Fiastra MC 13 559 6865
Acquacanina MC 14 121 6986
Muccia MC 15 915 7901
Bolognola MC 16 142 8043
Serravalle di Chienti MC 16 1070 9113
Norcia PG 18 4957 14070
Cerreto di Spoleto PG 18 1075 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
54 Km NE of Terni (111501 inhabitants)
57 Km E of Perugia (166134 inhabitants)
62 Km NW of Teramo (54892 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
84 Km SW of Ancona (100861 inhabitants)
97 Km NE of Viterbo (67173 inhabitants)
100 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 1.0 2020-03-25
05:15:47		 42.9482 13.0487 11 2020-03-25
05:19:55		 Sala Sismica INGV-Roma 77551291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-25 05:15:47 ± 0.05
Latitude 42.9482 ± 0.0027
Longitude 13.0487 ± 0.0037
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77551291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 307
Semi-minor axis of confidence ellipse (meter) 118
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 210
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18346
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 77551291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-25 05:19:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FERC.HNZ. 2020-03-25T05:16:49.37 3.0 positive manual Pn 1.33 0
IV.PTRJ.HHZ. 2020-03-25T05:16:44.97 3.0 undecidable manual Sn 0.66 0
IV.VIVA.HHZ. 2020-03-25T05:16:43.61 3.0 undecidable manual Sn -0.09 0
IV.SERS.HHZ. 2020-03-25T05:16:42.64 3.0 undecidable manual Pn 1.1 0
IV.FIR.HHZ. 2020-03-25T05:16:36.48 3.0 undecidable manual Sg 2.33 0
GU.CANO.HHZ. 2020-03-25T05:16:29.11 3.0 positive manual Pn -0.87 0
GE.MATE.HHZ. 2020-03-25T05:16:28.09 3.0 undecidable manual Pn 7.54 0
IV.PTCC.HHZ. 2020-03-25T05:16:27.47 3.0 undecidable manual Sg -0.41 0
IV.ROSPO.HHZ. 2020-03-25T05:16:21.11 3.0 undecidable manual Sn -2.02 0
IV.RIBO.EHZ.01 2020-03-25T05:16:07.50 3.0 positive manual Pg 0.29 0
IV.MTCE.HHZ. 2020-03-25T05:16:05.53 3.0 undecidable manual Pg 2.14 0
CR.STON.BHZ. 2020-03-25T05:16:02.80 3.0 positive manual Pn 0.68 0
IV.ROSPO.HHZ. 2020-03-25T05:16:00.19 3.0 positive manual Pn 5.26 0
IV.CSP1.EHZ. 2020-03-25T05:15:54.97 0.6 undecidable manual S 38 20.3685 91 0.01 50
IV.NRCA.HHZ. 2020-03-25T05:15:53.01 0.6 undecidable manual S 157 13.7751 96 -0.2 49
IV.CESI.HHZ. 2020-03-25T05:15:53.03 0.6 undecidable manual S 298 13.2756 100 -0.04 51
IV.MC2.EHZ. 2020-03-25T05:15:52.92 0.6 undecidable manual S 110 12.0768 108 0.15 49
IV.FDMO.HHZ. 2020-03-25T05:15:52.23 0.6 undecidable manual S 18 10.2786 118 -0.09 50
IV.CSP1.EHZ. 2020-03-25T05:15:51.54 0.6 negative manual P 38 20.3685 91 -0.09 49
IV.FDMO.HHZ. 2020-03-25T05:15:50.15 1.0 undecidable manual P 18 10.2786 118 0.05 25
IV.MC2.EHZ. 2020-03-25T05:15:50.58 1.0 negative manual P 110 12.0768 108 0.22 24
IV.NRCA.HHZ. 2020-03-25T05:15:50.60 1.0 positive manual P 157 13.7751 96 -0.02 25
IV.CESI.HHZ. 2020-03-25T05:15:50.61 0.1 negative manual P 298 13.2756 100 0.07 100
IV.APEC.HHZ. 2020-03-25T05:15:49.68 3.0 negative manual P -1.45 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.0 0.00009944999999999999 0.12 AML other m 2020-03-25T05:15:53.13
IV.NRCA.HHE. ML:1.0 0.00009054999999999999 1.32 AML other m 2020-03-25T05:15:53.20
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