INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.7 on date 17-05-2018 and time 02:10:44 (Italy) in region 7 km SW Monte Cavallo (MC)

A magnitude ML 0.7 earthquake occured in region: 7 km SW Monte Cavallo (MC), on

  • 17-05-2018 00:10:44 (UTC)
  • 17-05-2018 02:10:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.96, 12.93 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
Monte Cavallo MC 7 145 145
Sellano PG 7 1079 1224
Preci PG 12 724 1948
Serravalle di Chienti MC 13 1070 3018
Visso MC 13 1107 4125
Pieve Torina MC 14 1458 5583
Cerreto di Spoleto PG 15 1075 6658
Fiordimonte MC 16 202 6860
Muccia MC 17 915 7775
Ussita MC 17 444 8219
Trevi PG 17 8469 16688
Pievebovigliana MC 17 866 17554
Valtopina PG 18 1398 18952
Foligno PG 18 57155 76107
Castelsantangelo sul Nera MC 19 281 76388
Campello sul Clitunno PG 20 2442 78830

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km E of Foligno (57155 inhabitants)
47 Km E of Perugia (166134 inhabitants)
50 Km NE of Terni (111501 inhabitants)
71 Km W of Teramo (54892 inhabitants)
77 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
99 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 0.7 2018-05-17
00:10:44
42.96 12.93 11 2018-05-17
00:15:15
Sala Sismica INGV-Roma 56936271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-17 00:10:44 ± 0.06
Latitude 42.96 ± 0.00
Longitude 12.93 ± 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 56936271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 433
Semi-minor axis of confidence ellipse (meter) 370
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 333
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
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) 0.05306
Epicentral distance of station farthest from the epicenter (degree) 0.31206
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 56936271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-17 00:15:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OB.GAVE.EHZ. 2018-05-17T00:10:55.17 0.1 undecidable manual S 186 0.2644 91 -0.06 94
IV.CSP1.EHZ. 2018-05-17T00:10:54.63 0.1 undecidable manual S 56 0.2419 91 0.07 96
IV.ASSB.HHZ. 2018-05-17T00:10:53.79 0.1 undecidable manual S 294 0.2167 91 -0.02 96
IV.NRCA.HNN. 2018-05-17T00:10:52.52 0.1 undecidable manual S 132 0.1817 92 -0.25 91
IV.ATCC.EHZ. 2018-05-17T00:10:51.70 0.1 undecidable manual P 317 0.3121 91 0.01 95
IV.FDMO.HHZ. 2018-05-17T00:10:51.26 0.1 undecidable manual S 55 0.1403 96 -0.28 92
IV.CSP1.EHZ. 2018-05-17T00:10:50.55 0.3 undecidable manual P 56 0.2419 91 0.06 72
IV.T1221.EHZ. 2018-05-17T00:10:50.77 0.1 undecidable manual S 213 0.1133 109 0.01 99
OB.GAVE.EHZ. 2018-05-17T00:10:50.84 0.6 negative manual P 186 0.2644 91 -0.04 47
IV.FEMA.HNZ. 2018-05-17T00:10:50.24 0.3 undecidable manual S 86 0.0872 123 0.17 73
IV.NRCA.HNN. 2018-05-17T00:10:49.29 0.1 undecidable manual P 132 0.1817 92 -0.16 93
IV.ASSB.HHZ. 2018-05-17T00:10:49.95 0.1 negative manual P 294 0.2167 91 -0.11 95
IV.CESI.HHZ. 2018-05-17T00:10:49.21 0.1 undecidable manual S 339 0.0531 144 -0.12 100
IV.FDMO.HHZ. 2018-05-17T00:10:48.71 0.1 undecidable manual P 55 0.1403 96 -0.03 97
IV.FEMA.HNZ. 2018-05-17T00:10:48.76 0.3 undecidable manual P 86 0.0872 123 0.86 59
IV.T1221.EHZ. 2018-05-17T00:10:48.37 0.1 undecidable manual P 213 0.1133 109 0.08 98
IV.CESI.HHZ. 2018-05-17T00:10:47.48 0.1 undecidable manual P 339 0.0531 144 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHE. ML:0.6 2.54E-5 1.48 AML other m 2018-05-17T00:10:53.84
IV.ASSB.HHN. ML:0.5 2.05E-5 0.72 AML other m 2018-05-17T00:10:53.99
OB.GAVE.EHE. ML:1 4.5E-5 0.48 AML other m 2018-05-17T00:10:55.95
OB.GAVE.EHN. ML:0.9 3.31E-5 0.7 AML other m 2018-05-17T00:10:55.54
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