Earthquake with magnitude of ML 0.1 on date 07-04-2020 and time 19:11:24 (UTC) in region 4 km NW Visso (MC)

A magnitude ML 0.1 earthquake occured in region: 4 km NW Visso (MC), on

  • 07-04-2020 19:11:24 (UTC)
  • 07-04-2020 21:11:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.95, 13.05 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.

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 8 444 1696
Preci PG 8 724 2420
Fiordimonte MC 10 202 2622
Castelsantangelo sul Nera MC 11 281 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)
56 Km E of Perugia (166134 inhabitants)
63 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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 0.1 2020-04-07
19:11:24
42.95 13.05 11 2020-04-07
19:29:05
Sala Sismica INGV-Roma 77993501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-07 19:11:24 ± 0.04
Latitude 42.95 ± 0.00
Longitude 13.05 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77993501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 321
Semi-minor axis of confidence ellipse (meter) 181
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 241
Circular confidence region, given by single value of horizontal uncertainty (meter) 320
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 19
Number of defining phases 11
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
Epicentral distance of station farthest from the epicenter (degree) 0.21044
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.1

Field Value
Value 0.1
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 77993501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-07 19:29:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MONC.HHZ. 2020-04-07T19:12:59.92 3.0 undecidable manual Sn 1.62 0
IV.VARE.HHZ. 2020-04-07T19:12:16.82 3.0 undecidable manual Pn 6.18 0
IV.FIR.HHZ. 2020-04-07T19:11:51.27 3.0 undecidable manual Sn -4.86 0
IV.LMD.HHZ. 2020-04-07T19:11:50.28 3.0 undecidable manual Sn -3.5 0
IV.PAOL.HHZ. 2020-04-07T19:11:49.93 3.0 undecidable manual Pn -2.67 0
IV.MAON.HHZ. 2020-04-07T19:11:35.80 3.0 undecidable manual Pn -3.99 0
IV.LMD.HHZ. 2020-04-07T19:11:34.74 3.0 positive manual P -0.7 0
IV.MMO1.EHZ. 2020-04-07T19:11:33.56 0.1 undecidable manual S 104 0.2104 50 0.02 98
IV.MML1.EHE. 2020-04-07T19:11:32.25 0.6 undecidable manual S 341 0.1727 50 -0.18 48
IV.CSP1.EHZ. 2020-04-07T19:11:32.76 0.3 undecidable manual S 39 0.1826 50 0.04 74
IV.NRCA.HHZ. 2020-04-07T19:11:30.92 0.1 undecidable manual S 157 0.1259 128 -0.1 98
IV.CESI.HHZ. 2020-04-07T19:11:30.77 0.1 undecidable manual S 298 0.1187 130 -0.03 100
IV.CSP1.EHZ. 2020-04-07T19:11:29.28 0.6 undecidable manual P 39 0.1826 50 -0.11 49
IV.FDMO.HHZ. 2020-04-07T19:11:29.98 0.1 undecidable manual S 18 0.0917 137 -0.07 100
IV.MMO1.EHZ. 2020-04-07T19:11:29.90 0.1 undecidable manual P 104 0.2104 50 0.04 98
IV.CESI.HHZ. 2020-04-07T19:11:28.40 0.1 undecidable manual P 298 0.1187 130 0.12 98
IV.MML1.EHE. 2020-04-07T19:11:28.87 3.0 undecidable manual P 341 0.1727 50 -0.36 0
IV.NRCA.HHZ. 2020-04-07T19:11:28.44 0.1 undecidable manual P 157 0.1259 128 0.03 100
IV.FDMO.HHZ. 2020-04-07T19:11:27.96 0.1 undecidable manual P 18 0.0917 137 0.12 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:-0.1 1.0817524E-5 0.1408 AML other m 2020-04-07T19:11:30.34
IV.FDMO.HHN. ML:-0.1 8.1507905E-6 6.016 AML other m 2020-04-07T19:11:33.88
IV.CESI.HHE. ML:0.3 1.9939765E-5 0.1024 AML other m 2020-04-07T19:11:30.89
IV.CESI.HHN. ML:0.2 1.73288285E-5 0.1152 AML other m 2020-04-07T19:11:30.91
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download