INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.8 on date 13-05-2018 and time 15:23:12 (Italy) in region 2 km E Castelsantangelo sul Nera (MC)

A magnitude ML 0.8 earthquake occured in region: 2 km E Castelsantangelo sul Nera (MC), on

  • 13-05-2018 13:23:12 (UTC)
  • 13-05-2018 15:23:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9, 13.18 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
Castelsantangelo sul Nera MC 2 281 281
Ussita MC 6 444 725
Visso MC 8 1107 1832
Preci PG 11 724 2556
Bolognola MC 12 142 2698
Montemonaco AP 12 604 3302
Norcia PG 14 4957 8259
Montegallo AP 14 523 8782
Montefortino FM 14 1178 9960
Acquacanina MC 15 121 10081
Fiastra MC 16 559 10640
Arquata del Tronto AP 17 1178 11818
Fiordimonte MC 17 202 12020
Amandola FM 17 3629 15649
Monte Cavallo MC 18 145 15794
Sarnano MC 18 3264 19058
Pieve Torina MC 19 1458 20516
Pievebovigliana MC 20 866 21382

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
51 Km NW of Teramo (54892 inhabitants)
57 Km NE of Terni (111501 inhabitants)
63 Km N of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
85 Km SW of Ancona (100861 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
98 Km NW of Pescara (121014 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 2018-05-13
13:23:12
42.9 13.18 10 2018-05-13
13:27:45
Sala Sismica INGV-Roma 56829681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-13 13:23:12 ± 0.07
Latitude 42.90 ± 0.00
Longitude 13.18 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 56829681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 533
Semi-minor axis of confidence ellipse (meter) 285
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 92
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 98
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.2626
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 56829681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-13 13:27:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MML1.EHN. 2018-05-13T13:23:23.10 0.3 undecidable manual S 325 0.2626 50 0.05 72
IV.CESI.HHZ. 2018-05-13T13:23:22.02 0.6 undecidable manual S 298 0.2266 50 0.04 49
IV.T1219.HNE. 2018-05-13T13:23:21.08 0.6 undecidable manual S 321 0.2014 114 -0.07 49
IV.CSP1.EHZ. 2018-05-13T13:23:20.80 0.3 undecidable manual S 6 0.1943 115 -0.09 73
IV.FDMO.HHZ. 2018-05-13T13:23:19.47 0.6 undecidable manual S 335 0.1529 121 -0.02 50
IV.CESI.HHZ. 2018-05-13T13:23:18.05 0.3 positive manual P 298 0.2266 50 0.03 73
IV.OFFI.HHN. 2018-05-13T13:23:18.87 3.0 positive manual P -0.02 0
IV.MML1.EHN. 2018-05-13T13:23:18.66 0.1 undecidable manual P 325 0.2626 50 0.02 97
IV.CSP1.EHZ. 2018-05-13T13:23:17.37 1.0 positive manual P 6 0.1943 115 -0.02 25
IV.T1219.HNE. 2018-05-13T13:23:17.43 0.1 undecidable manual P 321 0.2014 114 -0.11 96
IV.MTRA.EHZ. 2018-05-13T13:23:17.27 1.0 negative manual P 131 0.214 113 -0.52 22
IV.NRCA.HHN. 2018-05-13T13:23:17.12 0.6 undecidable manual S 216 0.0791 139 -0.17 49
IV.MC2.EHE. 2018-05-13T13:23:16.40 0.6 undecidable manual S 33 0.0153 170 0.21 49
IV.FDMO.HHZ. 2018-05-13T13:23:16.57 0.6 undecidable manual P 335 0.1529 121 -0.01 50
IV.NRCA.HHN. 2018-05-13T13:23:15.36 0.1 undecidable manual P 216 0.0791 139 0.05 100
IV.MC2.EHE. 2018-05-13T13:23:14.85 0.1 undecidable manual P 33 0.0153 170 0.17 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.5 0.000406 0.18 AML other m 2018-05-13T13:23:17.29
IV.NRCA.HHN. ML:1.3 0.0002965 1.04 AML other m 2018-05-13T13:23:17.78
IV.FDMO.HHE. ML:0.6 2.955E-5 0.16 AML other m 2018-05-13T13:23:19.79
IV.FDMO.HHN. ML:0.5 2.575E-5 0.7 AML other m 2018-05-13T13:23:20.58
IV.CESI.HHE. ML:0.7 3.165E-5 0.18 AML other m 2018-05-13T13:23:22.09
IV.CESI.HHN. ML:0.8 3.805E-5 0.56 AML other m 2018-05-13T13:23:22.55
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