Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 28-03-2020 and time 00:31:50 (UTC) in region 4 km W Visso (MC)

A magnitude ML 1.2 earthquake occured in region: 4 km W Visso (MC), on

  • 28-03-2020 00:31:50 (UTC)
  • 28-03-2020 01:31:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9260, 13.0440 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.

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 4 1107 1107
Preci PG 5 724 1831
Ussita MC 8 444 2275
Monte Cavallo MC 8 145 2420
Castelsantangelo sul Nera MC 10 281 2701
Sellano PG 10 1079 3780
Fiordimonte MC 13 202 3982
Pieve Torina MC 13 1458 5440
Fiastra MC 15 559 5999
Norcia PG 15 4957 10956
Pievebovigliana MC 16 866 11822
Cerreto di Spoleto PG 16 1075 12897
Acquacanina MC 16 121 13018
Bolognola MC 17 142 13160
Muccia MC 17 915 14075
Serravalle di Chienti MC 18 1070 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
52 Km NE of Terni (111501 inhabitants)
57 Km E of Perugia (166134 inhabitants)
62 Km W of Teramo (54892 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
86 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
Reviewed
Rev100 		ML 1.2 2020-03-28
00:31:50		 42.9262 13.0443 10 2020-03-28
00:40:06		 Sala Sismica INGV-Roma 77632971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-28 00:31:50 ± 0.1
Latitude 42.9262 ± 0.0054
Longitude 13.0443 ± 0.0074
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77632971

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 727
Semi-minor axis of confidence ellipse (meter) 247
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 229
Circular confidence region, given by single value of horizontal uncertainty (meter) 730.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.40559
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 77632971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-28 00:40:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OX.SABO.HNZ. 2020-03-28T00:33:25.57 3.0 undecidable manual Sn 2.06 0
IV.PTRP.HHZ. 2020-03-28T00:33:07.05 3.0 undecidable manual Sn -6.08 0
IV.HAGA.HHZ. 2020-03-28T00:33:05.72 3.0 positive manual Pn 3.96 0
IV.VULT.HHZ. 2020-03-28T00:32:59.31 3.0 undecidable manual Sn -1.11 0
IV.AGLI.HHZ. 2020-03-28T00:32:54.36 3.0 undecidable manual Sg -4.18 0
OX.SABO.HNZ. 2020-03-28T00:32:49.76 3.0 undecidable manual Pg 12.16 0
IV.ZONE.HNZ. 2020-03-28T00:32:46.23 3.0 undecidable manual Pg 7.99 0
IV.VULT.HHZ. 2020-03-28T00:32:30.31 3.0 undecidable manual Pg 5.68 0
IV.MF5.EHZ. 2020-03-28T00:32:03.41 0.6 undecidable manual S 78 34.4433 50 0.77 41
IV.SNTG.HHZ. 2020-03-28T00:32:03.18 0.3 undecidable manual S 347 37.4292 50 -0.27 71
IV.MTRA.EHZ. 2020-03-28T00:32:02.27 0.6 undecidable manual S 123 34.2435 50 -0.33 47
IV.CSP1.EHZ. 2020-03-28T00:31:59.03 0.6 undecidable manual S 35 22.5552 114 -0.26 49
IV.EL6.EHZ. 2020-03-28T00:31:59.18 1.0 negative manual P 6 45.0216 50 -0.06 24
IV.MMO1.EHZ. 2020-03-28T00:31:59.17 0.6 undecidable manual S 97 23.1546 113 -0.31 48
IV.SNTG.HHZ. 2020-03-28T00:31:58.54 0.6 undecidable manual P 347 37.4292 50 0.46 45
IV.MTRA.EHZ. 2020-03-28T00:31:57.25 0.1 undecidable manual P 123 34.2435 50 -0.34 94
IV.MF5.EHZ. 2020-03-28T00:31:57.89 0.1 undecidable manual P 78 34.4433 50 0.28 95
IV.NRCA.HHZ. 2020-03-28T00:31:56.02 0.6 undecidable manual S 151 11.7771 130 -0.06 52
IV.FDMO.HHZ. 2020-03-28T00:31:56.24 0.6 undecidable manual S 16 12.7761 128 -0.11 51
IV.CESI.HHZ. 2020-03-28T00:31:56.89 0.6 undecidable manual S 308 14.2746 125 0.1 51
IV.MC2.EHZ. 2020-03-28T00:31:56.49 0.6 undecidable manual S 98 11.877 130 0.38 48
IV.MMO1.EHZ. 2020-03-28T00:31:55.61 0.3 positive manual P 97 23.1546 113 -0.18 74
IV.CSP1.EHZ. 2020-03-28T00:31:55.50 0.1 undecidable manual P 35 22.5552 114 -0.18 99
IV.RIBO.EHZ.01 2020-03-28T00:31:55.45 3.0 positive manual P -6.83 0
IT.MTCL.HGZ. 2020-03-28T00:31:55.17 0.6 undecidable manual S 334 8.3805 140 -0.08 52
IV.MC2.EHZ. 2020-03-28T00:31:54.06 0.1 undecidable manual P 98 11.877 130 0.22 100
IV.FDMO.HHZ. 2020-03-28T00:31:54.05 0.6 negative manual P 16 12.7761 128 0.07 51
IV.CESI.HHZ. 2020-03-28T00:31:54.24 1.0 undecidable manual P 308 14.2746 125 0 26
IT.MTCL.HGZ. 2020-03-28T00:31:53.47 0.3 positive manual P 334 8.3805 140 0.13 77
IV.NRCA.HHZ. 2020-03-28T00:31:53.86 0.6 undecidable manual P 151 11.7771 130 0.04 52
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.9 0.0000823 0.06 AML other m 2020-03-28T00:31:54.48
IV.NRCA.HNN. ML:1.7 0.0006165000000000001 0.1 AML other m 2020-03-28T00:31:56.06
IV.NRCA.HHN. ML:1.8 0.000676 0.1 AML other m 2020-03-28T00:31:56.11
IV.NRCA.HHE. ML:1.3 0.000253 0.54 AML other m 2020-03-28T00:31:56.09
IV.FDMO.HHN. ML:1.0 0.0001125 0.56 AML other m 2020-03-28T00:31:56.67
IV.FDMO.HHE. ML:1.2 0.00015900000000000002 0.18 AML other m 2020-03-28T00:31:56.66
IV.CESI.HHN. ML:1.0 0.00011 1.44 AML other m 2020-03-28T00:31:57.93
IV.NRCA.HNE. ML:1.4 0.00027749999999999997 0.88 AML other m 2020-03-28T00:31:58.72
IV.SNTG.HHN. ML:1.2 0.00005985 1.58 AML other m 2020-03-28T00:32:03.86
IV.SNTG.HHE. ML:1.2 0.00005345 0.42 AML other m 2020-03-28T00:32:05.90
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