Earthquake with magnitude of ML 0.6 on date 20-05-2019 and time 20:23:22 (Italy) in region 4 km S Visso (MC)

A magnitude ML 0.6 earthquake occured in region: 4 km S Visso (MC), on

  • 20-05-2019 18:23:22 (UTC)
  • 20-05-2019 20:23:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.89, 13.1 at 9 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
Castelsantangelo sul Nera MC 5 281 281
Visso MC 5 1107 1388
Preci PG 5 724 2112
Ussita MC 7 444 2556
Norcia PG 11 4957 7513
Sellano PG 14 1079 8592
Monte Cavallo MC 14 145 8737
Bolognola MC 16 142 8879
Fiordimonte MC 16 202 9081
Acquacanina MC 17 121 9202
Fiastra MC 17 559 9761
Cerreto di Spoleto PG 17 1075 10836
Pieve Torina MC 18 1458 12294
Montemonaco AP 19 604 12898
Pievebovigliana MC 19 866 13764
Montegallo AP 20 523 14287

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
52 Km NE of Terni (111501 inhabitants)
56 Km W of Teramo (54892 inhabitants)
63 Km E of Perugia (166134 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
96 Km W of Montesilvano (53738 inhabitants)
97 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 0.6 2019-05-20
18:23:22
42.89 13.1 9 2019-05-20
18:29:17
Sala Sismica INGV-Roma 68733741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-05-20 18:23:22 ± 0.12
Latitude 42.89 ± 0.00
Longitude 13.10 ± 0.00
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 68733741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 266
Semi-minor axis of confidence ellipse (meter) 167
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) 270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.18166
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 68733741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-05-20 18:29:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2019-05-20T18:23:29.13 0.1 undecidable manual S 87 0.1673 117 -0.07 97
IV.CESI.HHZ. 2019-05-20T18:23:29.70 0.1 undecidable manual S 308 0.1817 115 -0.01 98
IV.FDMO.HHZ. 2019-05-20T18:23:28.49 0.1 undecidable manual S 357 0.1448 120 0.04 98
IV.CSP1.EHZ. 2019-05-20T18:23:27.04 3.0 negative manual P 0.14 0
IV.MMO1.EHZ. 2019-05-20T18:23:26.30 1.0 positive manual P 87 0.1673 117 0.14 24
IV.CESI.HHZ. 2019-05-20T18:23:26.36 0.1 undecidable manual P 308 0.1817 115 -0.1 96
IV.FDMO.HHZ. 2019-05-20T18:23:25.76 0.1 undecidable manual P 357 0.1448 120 0.03 98
IV.NRCA.HHZ. 2019-05-20T18:23:25.95 0.1 undecidable manual S 169 0.0594 145 -0.03 100
IV.NRCA.HHZ. 2019-05-20T18:23:24.40 0.1 positive manual P 169 0.0594 145 0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.6 7.215E-5 1.86 AML other m 2019-05-20T18:23:25.06
IV.NRCA.HHE. ML:0.6 6.18E-5 0.14 AML other m 2019-05-20T18:23:26.08
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