ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.0 on date 20-03-2019 and time 10:05:36 (UTC) in region 6 km W Visso (MC)

A magnitude ML 1.0 earthquake occured in region: 6 km W Visso (MC), on

  • 20-03-2019 10:05:36 (UTC)
  • 20-03-2019 11:05:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.94, 13.02 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.

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 6 1107 1107
Monte Cavallo MC 6 145 1252
Preci PG 7 724 1976
Sellano PG 9 1079 3055
Ussita MC 10 444 3499
Pieve Torina MC 12 1458 4957
Castelsantangelo sul Nera MC 12 281 5238
Fiordimonte MC 12 202 5440
Pievebovigliana MC 15 866 6306
Fiastra MC 16 559 6865
Cerreto di Spoleto PG 16 1075 7940
Serravalle di Chienti MC 16 1070 9010
Muccia MC 16 915 9925
Acquacanina MC 16 121 10046
Norcia PG 17 4957 15003
Bolognola MC 18 142 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Foligno (57155 inhabitants)
52 Km NE of Terni (111501 inhabitants)
55 Km E of Perugia (166134 inhabitants)
64 Km W of Teramo (54892 inhabitants)
72 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
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 1.0 2019-03-20
10:05:36
42.94 13.02 10 2019-03-20
10:16:07
Sala Sismica INGV-Roma 66711991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-20 10:05:36 ± 0.16
Latitude 42.94 ± 0.00
Longitude 13.02 ± 0.01
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 66711991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 621
Semi-minor axis of confidence ellipse (meter) 251
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 234
Circular confidence region, given by single value of horizontal uncertainty (meter) 620
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 161
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.1277
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 66711991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-20 10:16:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MURB.HNZ. 2019-03-20T10:05:47.21 3.0 undecidable manual P 0 0
IV.MC2.EHZ. 2019-03-20T10:05:43.13 0.6 undecidable manual S 103 0.1277 124 0.3 47
IV.CESI.HHZ. 2019-03-20T10:05:42.17 0.6 undecidable manual S 308 0.1061 129 0.02 50
IV.NRCA.HHE. 2019-03-20T10:05:42.64 0.3 undecidable manual S 147 0.1268 124 -0.16 72
IV.FDMO.HHZ. 2019-03-20T10:05:41.94 0.6 undecidable manual S 27 0.1088 128 -0.3 47
IV.NRCA.HHE. 2019-03-20T10:05:40.21 0.1 undecidable manual P 147 0.1268 124 -0.09 98
IV.MC2.EHZ. 2019-03-20T10:05:40.29 0.1 undecidable manual P 103 0.1277 124 -0.03 99
IV.FEMA.HNE. 2019-03-20T10:05:40.61 0.6 undecidable manual S 45 0.0315 160 0.18 49
IT.MTCL.HGE. 2019-03-20T10:05:40.67 0.3 undecidable manual S 345 0.0558 147 -0.18 73
IV.CESI.HHZ. 2019-03-20T10:05:40.03 0.3 undecidable manual P 308 0.1061 129 0.1 73
IV.FDMO.HHZ. 2019-03-20T10:05:39.96 0.1 undecidable manual P 27 0.1088 128 -0.02 99
IV.FEMA.HNE. 2019-03-20T10:05:39.12 0.1 undecidable manual P 45 0.0315 160 0.18 98
IT.MTCL.HGE. 2019-03-20T10:05:39.22 0.1 undecidable manual P 345 0.0558 147 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.9 9.02E-5 0.54 AML other m 2019-03-20T10:05:42.18
IV.FDMO.HHE. ML:0.7 5.775E-5 0.26 AML other m 2019-03-20T10:05:42.30
IV.CESI.HHE. ML:1.1 0.0001465 0.18 AML other m 2019-03-20T10:05:42.40
IV.CESI.HHN. ML:1.2 0.0001855 0.38 AML other m 2019-03-20T10:05:42.51
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