INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.8 on date 15-05-2018 and time 22:29:24 (Italy) in region 3 km E Monte Cavallo (MC)

A magnitude ML 0.8 earthquake occured in region: 3 km E Monte Cavallo (MC), on

  • 15-05-2018 20:29:24 (UTC)
  • 15-05-2018 22:29:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43, 13.04 at 8 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 3 145 145
Pieve Torina MC 5 1458 1603
Fiordimonte MC 6 202 1805
Pievebovigliana MC 8 866 2671
Muccia MC 9 915 3586
Visso MC 9 1107 4693
Serravalle di Chienti MC 10 1070 5763
Fiastra MC 10 559 6322
Ussita MC 11 444 6766
Acquacanina MC 12 121 6887
Preci PG 14 724 7611
Camerino MC 15 6974 14585
Castelsantangelo sul Nera MC 15 281 14866
Bolognola MC 15 142 15008
Sellano PG 16 1079 16087
Sefro MC 17 422 16509
Pioraco MC 20 1134 17643

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km E of Foligno (57155 inhabitants)
54 Km E of Perugia (166134 inhabitants)
59 Km NE of Terni (111501 inhabitants)
67 Km NW of Teramo (54892 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
93 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 0.8 2018-05-15
20:29:24
43 13.04 8 2018-05-15
20:35:13
Sala Sismica INGV-Roma 56903311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-15 20:29:24 ± 0.08
Latitude 43.00 ± 0.00
Longitude 13.04 ± 0.00
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 56903311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 391
Semi-minor axis of confidence ellipse (meter) 123
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 345
Circular confidence region, given by single value of horizontal uncertainty (meter) 390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 0.32825
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 56903311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-15 20:35:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2018-05-15T20:29:37.64 1.0 undecidable manual S 8 0.3283 50 -0.02 24
IV.ASSB.HHZ. 2018-05-15T20:29:35.59 0.6 undecidable manual S 278 0.2806 104 -0.28 46
IV.MMO1.EHZ. 2018-05-15T20:29:34.20 0.3 undecidable manual S 116 0.2356 107 -0.01 74
IV.T1221.EHZ. 2018-05-15T20:29:33.09 0.3 undecidable manual S 224 0.2005 109 0.15 72
IV.NRCA.HHZ. 2018-05-15T20:29:32.12 0.3 undecidable manual S 162 0.1799 111 -0.05 74
IV.EL6.EHZ. 2018-05-15T20:29:32.16 0.1 undecidable manual P 8 0.3283 50 -0.05 96
IV.CSP1.EHZ. 2018-05-15T20:29:31.49 0.1 undecidable manual S 54 0.1493 115 0.38 93
IV.MMO1.EHZ. 2018-05-15T20:29:30.07 0.6 undecidable manual P 116 0.2356 107 -0.14 48
IV.ASSB.HHZ. 2018-05-15T20:29:30.87 0.6 negative manual P 278 0.2806 104 -0.31 46
IV.T1221.EHZ. 2018-05-15T20:29:29.54 1.0 negative manual P 224 0.2005 109 0.06 25
IV.NRCA.HHZ. 2018-05-15T20:29:29.03 0.3 undecidable manual P 162 0.1799 111 0 75
IV.CESI.HHZ. 2018-05-15T20:29:29.64 0.3 undecidable manual S 270 0.098 125 0.25 72
IV.CSP1.EHZ. 2018-05-15T20:29:28.70 1.0 undecidable manual P 54 0.1493 115 0.28 24
IV.CESI.HHZ. 2018-05-15T20:29:27.56 0.1 positive manual P 270 0.098 125 0.14 99
IV.FDMO.HHZ. 2018-05-15T20:29:27.60 0.3 undecidable manual S 48 0.0477 146 -0.41 70
IV.FDMO.HHZ. 2018-05-15T20:29:26.52 0.1 undecidable manual P 48 0.0477 146 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:0.8 8.415E-5 0.24 AML other m 2018-05-15T20:29:29.79
IV.CESI.HHE. ML:0.6 5.75E-5 1.46 AML other m 2018-05-15T20:29:31.96
IV.NRCA.HHN. ML:0.8 5.715E-5 0.74 AML other m 2018-05-15T20:29:33.15
IV.NRCA.HHE. ML:0.8 4.99E-5 0.44 AML other m 2018-05-15T20:29:34.84
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