INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.5 on date 18-05-2018 and time 02:41:31 (Italy) in region 3 km NW Ussita (MC)

A magnitude ML 1.5 earthquake occured in region: 3 km NW Ussita (MC), on

  • 18-05-2018 00:41:31 (UTC)
  • 18-05-2018 02:41:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.97, 13.12 at 13 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
Ussita MC 3 444 444
Visso MC 5 1107 1551
Fiordimonte MC 8 202 1753
Fiastra MC 8 559 2312
Acquacanina MC 8 121 2433
Castelsantangelo sul Nera MC 9 281 2714
Bolognola MC 9 142 2856
Monte Cavallo MC 10 145 3001
Pieve Torina MC 10 1458 4459
Pievebovigliana MC 11 866 5325
Preci PG 12 724 6049
Muccia MC 14 915 6964
Sarnano MC 17 3264 10228
Serravalle di Chienti MC 18 1070 11298
Sellano PG 18 1079 12377
Montefortino FM 18 1178 13555
Montemonaco AP 19 604 14159
Camerino MC 19 6974 21133
Cessapalombo MC 19 512 21645
Amandola FM 19 3629 25274
Norcia PG 20 4957 30231

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
59 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
61 Km E of Perugia (166134 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
98 Km S of Fano (60888 inhabitants)
98 Km NW of Montesilvano (53738 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 1.5 2018-05-18
00:41:31
42.97 13.12 13 2018-05-18
00:47:58
Sala Sismica INGV-Roma 56968281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-18 00:41:31 ± 0.05
Latitude 42.97 ± 0.00
Longitude 13.12 ± 0.00
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 56968281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 89
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 234
Circular confidence region, given by single value of horizontal uncertainty (meter) 340
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 41
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41549
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 56968281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-18 00:47:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2018-05-18T00:41:56.45 3.0 undecidable manual S 0.29 0
IV.FIAM.HHZ. 2018-05-18T00:41:55.18 3.0 undecidable manual S -0.53 0
IV.MURB.HHZ. 2018-05-18T00:41:50.36 3.0 undecidable manual S 0.24 0
IV.PE3.EHZ. 2018-05-18T00:41:48.22 3.0 positive manual P 0.55 0
IV.PIEI.HHZ. 2018-05-18T00:41:44.62 3.0 undecidable manual P -0.35 0
IV.FIAM.HHZ. 2018-05-18T00:41:44.69 3.0 positive manual P -0.03 0
OB.GAVE.EHZ. 2018-05-18T00:41:43.37 0.6 undecidable manual S 211 0.3238 96 0.3 46
IV.SNTG.HHZ. 2018-05-18T00:41:42.79 0.6 undecidable manual S 335 0.3121 96 0.05 48
IV.FRON.EHZ. 2018-05-18T00:41:42.97 3.0 positive manual P -0.36 0
IV.MTRA.EHZ. 2018-05-18T00:41:42.08 0.6 undecidable manual S 136 0.295 97 -0.16 47
IV.ARVD.HHZ. 2018-05-18T00:41:41.74 3.0 positive manual P -0.22 0
IV.SSFR.HHZ. 2018-05-18T00:41:41.48 3.0 positive manual P -0.18 0
IV.MF5.EHZ. 2018-05-18T00:41:41.44 0.1 undecidable manual S 86 0.25 99 0.54 85
IV.MURB.HHZ. 2018-05-18T00:41:41.49 3.0 negative manual P -0.09 0
IV.OFFI.HHZ. 2018-05-18T00:41:40.35 3.0 positive manual P 0.75 0
IV.T1221.EHZ. 2018-05-18T00:41:40.53 0.6 undecidable manual S 241 0.2275 100 0.28 47
IV.RM33.EHZ. 2018-05-18T00:41:40.34 3.0 positive manual P -0.07 0
IV.TERO.HHZ. 2018-05-18T00:41:40.69 3.0 negative manual P -0.32 0
IV.MOMA.HHZ. 2018-05-18T00:41:40.01 3.0 undecidable manual P 0.11 0
IV.LNSS.HHZ. 2018-05-18T00:41:39.18 1.0 undecidable manual P 189 0.3723 95 0.38 22
IV.GUMA.HHZ. 2018-05-18T00:41:39.24 0.6 undecidable manual S 60 0.1826 106 0.28 46
IV.FOSV.EHZ. 2018-05-18T00:41:39.54 0.6 negative manual P 321 0.4155 94 0 47
IV.ATCC.EHZ. 2018-05-18T00:41:39.50 0.6 negative manual P 302 0.4101 94 0.06 47
IV.CING.HHZ. 2018-05-18T00:41:39.43 0.6 undecidable manual P 8 0.4083 94 0.02 47
IV.SMA1.EHZ. 2018-05-18T00:41:38.57 0.6 undecidable manual P 155 0.375 95 -0.28 45
IV.MMO1.EHZ. 2018-05-18T00:41:38.18 0.6 undecidable manual S 115 0.1682 108 -0.37 46
IV.ASSB.HHZ. 2018-05-18T00:41:38.22 0.1 positive manual P 282 0.3435 95 -0.1 93
IV.CESI.HHZ. 2018-05-18T00:41:38.59 0.6 undecidable manual S 282 0.1601 110 0.26 48
IV.CSP1.EHZ. 2018-05-18T00:41:37.44 0.6 undecidable manual S 27 0.1358 116 -0.23 48
IV.MTRA.EHZ. 2018-05-18T00:41:37.12 0.1 undecidable manual P 136 0.295 97 -0.37 90
IV.NRCA.HNZ. 2018-05-18T00:41:37.58 0.6 undecidable manual S 181 0.1376 116 -0.12 48
IV.SNTG.HHZ. 2018-05-18T00:41:37.59 0.1 undecidable manual P 335 0.3121 96 -0.19 93
OB.GAVE.EHZ. 2018-05-18T00:41:37.94 0.1 undecidable manual P 211 0.3238 96 -0.03 95
IV.MF5.EHZ. 2018-05-18T00:41:36.77 0.1 undecidable manual P 86 0.25 99 0.05 96
IV.FDMO.HHZ. 2018-05-18T00:41:36.07 0.6 undecidable manual S 341 0.0692 142 -0.06 50
IV.T1221.EHZ. 2018-05-18T00:41:36.33 0.1 undecidable manual P 241 0.2275 100 -0.01 97
IV.MC2.EHZ. 2018-05-18T00:41:36.52 0.6 undecidable manual S 139 0.0782 138 0.22 48
IV.MMO1.EHZ. 2018-05-18T00:41:35.12 1.0 undecidable manual P 115 0.1682 108 -0.24 24
IV.CESI.HHZ. 2018-05-18T00:41:35.34 0.1 undecidable manual P 282 0.1601 110 0.11 98
IV.GUMA.HHZ. 2018-05-18T00:41:35.59 0.1 undecidable manual P 60 0.1826 106 0 98
IV.MC2.EHZ. 2018-05-18T00:41:34.18 0.1 undecidable manual P 139 0.0782 138 0.12 98
IV.CSP1.EHZ. 2018-05-18T00:41:34.75 0.1 undecidable manual P 27 0.1358 116 -0.1 98
IV.NRCA.HNZ. 2018-05-18T00:41:34.84 0.1 undecidable manual P 181 0.1376 116 -0.03 99
IV.FDMO.HHZ. 2018-05-18T00:41:33.91 0.1 undecidable manual P 341 0.0692 142 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.4 0.000299 0.6 AML other m 2018-05-18T00:41:36.07
IV.FDMO.HHN. ML:1.9 0.001012 0.22 AML other m 2018-05-18T00:41:36.30
IV.NRCA.HHE. ML:2.2 0.001345 0.16 AML other m 2018-05-18T00:41:37.72
IV.NRCA.HNE. ML:2.2 0.00126 0.16 AML other m 2018-05-18T00:41:37.72
IV.NRCA.HNN. ML:2 0.000939 0.74 AML other m 2018-05-18T00:41:37.83
IV.NRCA.HHN. ML:2.1 0.0010185 0.16 AML other m 2018-05-18T00:41:37.83
IV.CSP1.EHE. ML:1.3 0.0001569 0.22 AML other m 2018-05-18T00:41:37.80
IV.CESI.HHE. ML:1.5 0.000231 0.42 AML other m 2018-05-18T00:41:38.81
IV.CESI.HHN. ML:1.6 0.000322 1.58 AML other m 2018-05-18T00:41:39.97
IV.CSP1.EHN. ML:0.9 6.045E-5 0.48 AML other m 2018-05-18T00:41:39.55
IV.GUMA.HHN. ML:1.6 0.0002795 0.82 AML other m 2018-05-18T00:41:39.56
IV.GUMA.HHE. ML:1.8 0.000396 0.28 AML other m 2018-05-18T00:41:39.47
IV.SNTG.HHE. ML:1.4 0.0001084 0.14 AML other m 2018-05-18T00:41:43.57
IV.SNTG.HHN. ML:1.4 9.365E-5 0.12 AML other m 2018-05-18T00:41:43.59
OB.GAVE.EHN. ML:1.9 0.000299 0.28 AML other m 2018-05-18T00:41:43.91
OB.GAVE.EHE. ML:2.1 0.000432 0.94 AML other m 2018-05-18T00:41:44.76
IV.ASSB.HHN. ML:1.6 0.000145 0.16 AML other m 2018-05-18T00:41:44.24
IV.ASSB.HHE. ML:1.5 0.0001085 0.3 AML other m 2018-05-18T00:41:45.63
IV.LNSS.HHN. ML:1.4 9.035E-5 1 AML other m 2018-05-18T00:41:45.18
IV.FOSV.EHE. ML:1.2 4.06E-5 0.32 AML other m 2018-05-18T00:41:46.56
IV.CING.HHE. ML:1 3.25E-5 0.74 AML other m 2018-05-18T00:41:46.49
IV.FOSV.EHN. ML:1.4 6.765E-5 0.26 AML other m 2018-05-18T00:41:46.72
IV.CING.HHN. ML:1.3 5.32E-5 0.14 AML other m 2018-05-18T00:41:46.80
IV.ATCC.EHN. ML:1.2 5.025E-5 0.88 AML other m 2018-05-18T00:41:46.49
IV.SMA1.EHN. ML:1.2 5.305E-5 0.64 AML other m 2018-05-18T00:41:47.37
IV.LNSS.HHE. ML:1.4 7.335E-5 0.48 AML other m 2018-05-18T00:41:47.45
IV.ATCC.EHE. ML:1.4 8.075E-5 0.8 AML other m 2018-05-18T00:41:47.62
IV.MOMA.HHN. ML:1.4 6.025E-5 1.82 AML other m 2018-05-18T00:41:47.91
IV.TERO.HHN. ML:1.3 4.48E-5 0.5 AML other m 2018-05-18T00:41:48.56
IV.MOMA.HHE. ML:1.6 0.000108 0.2 AML other m 2018-05-18T00:41:48.72
IV.OFFI.HHN. ML:1.8 0.0001895 0.82 AML other m 2018-05-18T00:41:48.97
IV.RM33.EHN. ML:1.3 5.225E-5 0.68 AML other m 2018-05-18T00:41:49.38
IV.SMA1.EHE. ML:1.2 4.905E-5 0.28 AML other m 2018-05-18T00:41:49.31
IV.RM33.EHE. ML:1.3 5.225E-5 0.34 AML other m 2018-05-18T00:41:49.47
IV.TERO.HHE. ML:1.4 5.18E-5 0.48 AML other m 2018-05-18T00:41:50.49
IV.SSFR.HHN. ML:1.9 0.000166 0.28 AML other m 2018-05-18T00:41:50.88
IV.SSFR.HHE. ML:1.8 0.000119 0.78 AML other m 2018-05-18T00:41:51.39
IV.ARVD.HHN. ML:1 1.91E-5 0.56 AML other m 2018-05-18T00:41:51.17
IV.MURB.HHN. ML:1.7 0.00011 0.22 AML other m 2018-05-18T00:41:51.61
IV.ARVD.HHE. ML:1.1 2.38E-5 1.58 AML other m 2018-05-18T00:41:51.84
IV.MURB.HHE. ML:1.7 0.0001065 1 AML other m 2018-05-18T00:41:52.30
IV.FRON.EHE. ML:1.2 2.7E-5 0.58 AML other m 2018-05-18T00:41:54.50
IV.FRON.EHN. ML:1.2 2.615E-5 1.04 AML other m 2018-05-18T00:41:54.45
IV.OFFI.HHE. ML:1.6 0.000107 0.64 AML other m 2018-05-18T00:41:55.31
IV.PIEI.HHN. ML:1.2 1.81E-5 0.22 AML other m 2018-05-18T00:41:56.62
IV.PIEI.HHE. ML:1.2 2.22E-5 0.9 AML other m 2018-05-18T00:41:57.92
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