INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.2 on date 14-05-2018 and time 11:54:30 (Italy) in region 10 km W Monte Cavallo (MC)

A magnitude ML 1.2 earthquake occured in region: 10 km W Monte Cavallo (MC), on

  • 14-05-2018 09:54:30 (UTC)
  • 14-05-2018 11:54:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.98, 12.88 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.

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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 10 145 145
Sellano PG 11 1079 1224
Serravalle di Chienti MC 12 1070 2294
Valtopina PG 13 1398 3692
Foligno PG 14 57155 60847
Trevi PG 16 8469 69316
Pieve Torina MC 16 1458 70774
Nocera Umbra PG 16 5839 76613
Spello PG 17 8645 85258
Preci PG 18 724 85982
Muccia MC 18 915 86897
Cerreto di Spoleto PG 18 1075 87972
Visso MC 18 1107 89079
Fiordimonte MC 19 202 89281
Pievebovigliana MC 19 866 90147
Sefro MC 19 422 90569
Campello sul Clitunno PG 20 2442 93011

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Foligno (57155 inhabitants)
42 Km E of Perugia (166134 inhabitants)
50 Km NE of Terni (111501 inhabitants)
77 Km W of Teramo (54892 inhabitants)
82 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
97 Km S of Fano (60888 inhabitants)
97 Km SE of Arezzo (99543 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 1.2 2018-05-14
09:54:30		 42.98 12.88 8 2018-05-14
10:03:55		 Sala Sismica INGV-Roma 56859421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-14 09:54:30 ± 0.1
Latitude 42.98 ± 0.00
Longitude 12.88 ± 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 56859421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 330
Semi-minor axis of confidence ellipse (meter) 60
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 252
Circular confidence region, given by single value of horizontal uncertainty (meter) 330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.03148
Epicentral distance of station farthest from the epicenter (degree) 0.28958
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 56859421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-14 10:03:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OB.GAVE.EHZ. 2018-05-14T09:54:42.05 0.6 undecidable manual S 177 0.2896 103 -0.05 48
IV.ATCC.EHZ. 2018-05-14T09:54:41.45 0.6 undecidable manual S 320 0.2662 104 0.23 46
IV.CSP1.EHZ. 2018-05-14T09:54:41.10 0.6 undecidable manual S 65 0.2644 104 -0.05 48
IV.NRCA.HHZ. 2018-05-14T09:54:39.84 0.6 undecidable manual S 130 0.2293 107 0 49
IV.ASSB.HHZ. 2018-05-14T09:54:37.55 0.6 undecidable manual S 291 0.17 112 -0.13 48
IV.FDMO.HHZ. 2018-05-14T09:54:37.58 0.6 undecidable manual S 70 0.1646 113 0.09 48
OB.GAVE.EHZ. 2018-05-14T09:54:37.14 0.1 undecidable manual P 177 0.2896 103 -0.11 94
IV.MML1.EHZ. 2018-05-14T09:54:37.12 0.6 undecidable manual S 28 0.1493 115 0.17 48
IV.SNTG.HHZ. 2018-05-14T09:54:36.91 0.1 undecidable manual P 10 0.277 104 -0.07 95
IV.T1219.EHE. 2018-05-14T09:54:36.16 0.6 undecidable manual S 52 0.1196 120 0.21 48
IV.ATCC.EHZ. 2018-05-14T09:54:36.60 0.1 undecidable manual P 320 0.2662 104 -0.14 94
IV.MC2.EHZ. 2018-05-14T09:54:36.08 0.1 undecidable manual P 107 0.2401 106 -0.1 95
IV.T1221.EHZ. 2018-05-14T09:54:36.48 0.6 undecidable manual S 190 0.1232 119 0.43 45
IV.NRCA.HHZ. 2018-05-14T09:54:35.95 0.1 positive manual P 130 0.2293 107 0 97
IV.CSP1.EHZ. 2018-05-14T09:54:35.96 0.6 positive manual P 65 0.2644 104 -0.75 39
IV.MML1.EHZ. 2018-05-14T09:54:34.42 0.1 undecidable manual P 28 0.1493 115 0.14 96
IV.ASSB.HHZ. 2018-05-14T09:54:34.75 0.3 positive manual P 291 0.17 112 0.05 73
IV.FDMO.HHZ. 2018-05-14T09:54:34.76 0.1 undecidable manual P 70 0.1646 113 0.17 95
IV.T1221.EHZ. 2018-05-14T09:54:33.97 1.0 undecidable manual P 190 0.1232 119 0.21 24
IV.T1219.EHE. 2018-05-14T09:54:33.87 0.1 undecidable manual P 52 0.1196 120 0.17 96
IV.CESI.HHZ. 2018-05-14T09:54:33.05 0.6 undecidable manual S 43 0.0315 155 -0.48 46
IV.CESI.HHZ. 2018-05-14T09:54:32.26 0.1 undecidable manual P 43 0.0315 155 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OB.GAVE.EHN. ML:1.3 9.49E-5 1.4 AML other m 2018-05-14T09:54:44.86
IV.FDMO.HHN. ML:1 9.305E-5 1.42 AML other m 2018-05-14T09:54:38.17
IV.FDMO.HHE. ML:1 9.36E-5 0.76 AML other m 2018-05-14T09:54:38.67
IV.ASSB.HHE. ML:1.1 9.88E-5 1.18 AML other m 2018-05-14T09:54:39.35
IV.NRCA.HHN. ML:1.4 0.000138 0.14 AML other m 2018-05-14T09:54:40.63
IV.NRCA.HHE. ML:1.2 9.205E-5 0.7 AML other m 2018-05-14T09:54:40.84
OB.GAVE.EHE. ML:1.4 0.00012585 0.28 AML other m 2018-05-14T09:54:44.37
IV.CESI.HHN. ML:0 0.002325137 0.224 AML other m 2018-05-14T09:54:33.27
IV.CESI.HHE. ML:0 0.001788522 0.1344 AML other m 2018-05-14T09:54:33.17
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