Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 31-05-2018 and time 12:24:00 (Italy) in region 3 km N Monte Cavallo (MC)

A magnitude ML 2.3 earthquake occured in region: 3 km N Monte Cavallo (MC), on

  • 31-05-2018 10:24:00 (UTC)
  • 31-05-2018 12:24:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0190, 13.0080 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 3 145 145
Pieve Torina MC 5 1458 1603
Fiordimonte MC 7 202 1805
Serravalle di Chienti MC 8 1070 2875
Muccia MC 8 915 3790
Pievebovigliana MC 8 866 4656
Visso MC 12 1107 5763
Fiastra MC 12 559 6322
Ussita MC 14 444 6766
Acquacanina MC 14 121 6887
Camerino MC 14 6974 13861
Sefro MC 15 422 14283
Sellano PG 16 1079 15362
Preci PG 16 724 16086
Pioraco MC 18 1134 17220
Bolognola MC 18 142 17362
Castelsantangelo sul Nera MC 18 281 17643
Fiuminata MC 20 1402 19045

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km E of Foligno (57155 inhabitants)
51 Km E of Perugia (166134 inhabitants)
59 Km NE of Terni (111501 inhabitants)
70 Km NW of Teramo (54892 inhabitants)
78 Km SW of Ancona (100861 inhabitants)
81 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Fano (60888 inhabitants)
99 Km NE of Viterbo (67173 inhabitants)
100 Km S of Pesaro (94582 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.3 2018-05-31
10:24:00		 43.0188 13.0078 9 2019-04-24
14:50:43		 Bollettino Sismico Italiano INGV 57562601
Reviewed
Rev100 		ML 2.1 2018-05-31
10:24:00		 43.0243 13.0087 8 2018-05-31
10:37:04		 Sala Sismica INGV-Roma 57397711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-05-31 10:24:00 ± 0.04
Latitude 43.0188 ± 0.0018
Longitude 13.0078 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 57562601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 276
Semi-minor axis of confidence ellipse (meter) 141
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 76
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 42
Number of associated phases, regardless of their use for origin computation 57
Number of defining phases 48
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.62053
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 20
Type of magnitude ML
Reference to an origin 57562601
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-06-05 15:55:39

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 58
Type of magnitude ML
Reference to an origin 57397711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-05-31 10:37:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RIBO.EHZ.01 2018-05-31T10:24:50.62 3.0 undecidable manual S 4.29 0
IV.PE3.EHZ. 2018-05-31T10:24:26.81 3.0 undecidable manual S -0.78 0
IV.CRE.HHZ. 2018-05-31T10:24:20.43 3.0 undecidable manual P 1.05 0
IV.CESX.HHZ. 2018-05-31T10:24:19.05 3.0 undecidable manual S -0.26 0
IV.RM33.EHZ. 2018-05-31T10:24:19.51 0.6 undecidable manual S 163 58.9965 50 0.55 42
IV.ARRO.EHZ. 2018-05-31T10:24:18.06 3.0 undecidable manual S 0.1 0
IV.ATFO.HHZ. 2018-05-31T10:24:18.10 3.0 undecidable manual S 0
IV.ARVD.HHZ. 2018-05-31T10:24:17.98 0.3 undecidable manual S 354 53.4021 50 0.51 64
IV.SMA1.EHZ. 2018-05-31T10:24:17.26 0.3 undecidable manual S 148 50.616 50 0.53 64
IV.LNSS.HHZ. 2018-05-31T10:24:15.75 0.3 undecidable manual S 177 46.2204 50 0.2 69
IV.CING.HHZ. 2018-05-31T10:24:14.78 0.3 undecidable manual S 21 42.4242 50 0.26 69
IV.EL6.EHZ. 2018-05-31T10:24:12.61 0.3 undecidable manual S 12 35.2425 50 -0.02 74
IV.ATCC.EHZ. 2018-05-31T10:24:12.91 0.3 undecidable manual S 302 35.0427 50 0.34 69
IV.FOSV.EHZ. 2018-05-31T10:24:12.93 0.3 undecidable manual S 327 36.5412 50 -0.04 73
IV.PIEI.HHZ. 2018-05-31T10:24:12.38 0.3 undecidable manual P 327 68.8755 50 -0.16 67
IV.TERO.HHZ. 2018-05-31T10:24:11.85 0.3 undecidable manual P 132 65.49 50 -0.16 68
IV.ATVO.HHZ. 2018-05-31T10:24:11.54 0.3 undecidable manual P 310 63.1923 50 -0.12 69
IV.CAMP.HHZ. 2018-05-31T10:24:11.38 0.3 undecidable manual P 148 62.7927 50 -0.22 67
IV.MMO1.EHZ. 2018-05-31T10:24:10.80 0.3 undecidable manual S 117 29.0487 106 0.12 73
IV.ARVD.HHZ. 2018-05-31T10:24:10.05 0.3 undecidable manual P 354 53.4021 50 -0.11 70
IV.RM33.EHZ. 2018-05-31T10:24:10.78 0.6 undecidable manual P 163 58.9965 50 -0.24 45
IV.GAG1.HNZ. 2018-05-31T10:24:09.58 0.6 undecidable manual S 11 24.753 109 0.31 47
IV.SMA1.EHZ. 2018-05-31T10:24:09.58 0.6 undecidable manual P 148 50.616 50 -0.15 46
IV.SSFR.HHZ. 2018-05-31T10:24:09.53 0.6 undecidable manual P 339 49.8168 50 -0.06 47
IV.MURB.HHZ. 2018-05-31T10:24:09.27 0.1 undecidable manual P 305 47.619 50 0.01 96
IV.MOMA.HHZ. 2018-05-31T10:24:08.45 0.3 undecidable manual P 236 42.8238 50 -0.08 72
IV.ATFO.HHZ. 2018-05-31T10:24:08.66 3.0 undecidable manual P 0
IV.LNSS.HHZ. 2018-05-31T10:24:08.80 0.3 undecidable manual P 177 46.2204 50 -0.25 69
IV.NRCA.HNZ. 2018-05-31T10:24:08.73 0.3 undecidable manual S 157 22.2555 111 0.28 71
IV.CING.HHZ. 2018-05-31T10:24:08.13 0.3 undecidable manual P 21 42.4242 50 -0.33 68
IV.MTRA.EHZ. 2018-05-31T10:24:08.25 0.6 undecidable manual P 132 42.9237 50 -0.29 46
OB.GAVE.EHZ. 2018-05-31T10:24:07.77 3.0 negative manual P 0.21 0
IV.CSP1.EHZ. 2018-05-31T10:24:07.16 0.3 undecidable manual S 63 17.871 115 0.12 74
IV.EL6.EHZ. 2018-05-31T10:24:07.02 0.1 undecidable manual P 12 35.2425 50 -0.34 92
IV.PF6.EHZ. 2018-05-31T10:24:07.75 0.3 undecidable manual S 49 20.0688 113 0.02 76
IV.MF5.EHZ. 2018-05-31T10:24:07.90 0.3 undecidable manual P 95 36.8298 50 0.3 69
IV.ATCC.EHZ. 2018-05-31T10:24:07.22 0.1 undecidable manual P 302 35.0427 50 -0.11 96
IV.FOSV.EHZ. 2018-05-31T10:24:07.30 0.1 undecidable manual P 327 36.5412 50 -0.26 93
IV.SEF1.HNZ. 2018-05-31T10:24:06.20 0.3 undecidable manual S 341 14.9739 119 0.05 76
IV.ASSB.HHZ. 2018-05-31T10:24:05.98 3.0 negative manual P -0.15 0
IV.MMO1.EHZ. 2018-05-31T10:24:05.98 0.6 undecidable manual P 117 29.0487 106 -0.26 47
IV.GAG1.HNZ. 2018-05-31T10:24:05.26 0.3 undecidable manual P 11 24.753 109 -0.16 73
IV.T1220.HNZ. 2018-05-31T10:24:05.40 0.3 undecidable manual S 33 12.0768 125 0.11 75
IV.GUMA.HHZ. 2018-05-31T10:24:05.89 0.3 undecidable manual P 79 26.9508 107 0.05 74
IV.T1221.EHZ. 2018-05-31T10:24:04.43 0.6 undecidable manual P 217 21.867 111 -0.44 46
IV.CSP1.EHZ. 2018-05-31T10:24:04.23 0.3 undecidable manual P 63 17.871 115 0.09 75
IV.NRCA.HNZ. 2018-05-31T10:24:04.72 0.3 undecidable manual P 157 22.2555 111 -0.23 72
IV.CESI.HHZ. 2018-05-31T10:24:04.72 0.3 undecidable manual S 260 8.4804 135 0.38 71
IV.MC2.EHZ. 2018-05-31T10:24:04.43 0.6 undecidable manual P 129 18.9699 114 0.1 50
IV.PF6.EHZ. 2018-05-31T10:24:04.42 0.3 undecidable manual P 49 20.0688 113 -0.11 74
IV.T1220.HNZ. 2018-05-31T10:24:03.15 0.3 undecidable manual P 33 12.0768 125 0.02 77
IV.FEMA.HNZ. 2018-05-31T10:24:03.80 0.3 undecidable manual S 152 7.1928 140 -0.22 74
IV.SEF1.HNZ. 2018-05-31T10:24:03.67 0.3 undecidable manual P 341 14.9739 119 0.05 76
IV.CESI.HHZ. 2018-05-31T10:24:02.91 0.3 undecidable manual P 260 8.4804 135 0.33 72
IV.MML1.EHZ. 2018-05-31T10:24:02.96 0.3 undecidable manual P 344 10.878 128 0.02 77
IV.FEMA.HNZ. 2018-05-31T10:24:02.36 0.3 undecidable manual P 152 7.1928 140 -0.03 77
IV.FDMO.HHZ. 2018-05-31T10:24:02.17 0.1 undecidable manual P 73 6.7932 141 -0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHE. ML:2.3 0.000492 0.56 AML other m 2018-05-31T10:24:18.38
IV.FEMA.HNE. ML:2.8 0.011800000000000001 0.5 AML other m 2018-05-31T10:24:04.95
IV.NRCA.HHN. ML:2.7 0.0033 0.14 AML other m 2018-05-31T10:24:09.53
IV.NRCA.HNN. ML:2.6 0.00309 0.14 AML other m 2018-05-31T10:24:09.54
IV.NRCA.HHE. ML:2.3 0.0013599999999999999 0.16 AML other m 2018-05-31T10:24:09.63
IV.NRCA.HNE. ML:2.2 0.0012150000000000002 0.14 AML other m 2018-05-31T10:24:09.63
IV.EL6.EHE. ML:2.7 0.001935 1.38 AML other m 2018-05-31T10:24:13.03
IV.EL6.EHN. ML:2.7 0.00199 0.18 AML other m 2018-05-31T10:24:13.29
IV.ATCC.EHE. ML:2.0 0.000442 0.22 AML other m 2018-05-31T10:24:13.55
IV.ATCC.EHN. ML:2.0 0.00041549999999999996 0.84 AML other m 2018-05-31T10:24:14.98
IV.CING.HHE. ML:2.8 0.0019950000000000002 0.2 AML other m 2018-05-31T10:24:15.04
IV.CING.HHN. ML:2.5 0.0009889999999999999 0.14 AML other m 2018-05-31T10:24:15.21
IV.ARVD.HHN. ML:2.1 0.000317 0.22 AML other m 2018-05-31T10:24:18.73
IV.ATFO.HHN. ML:1.6 0.0001015 0.82 AML other m 2018-05-31T10:24:19.86
IV.ATFO.HHE. ML:1.7 0.000132 0.18 AML other m 2018-05-31T10:24:19.98
IV.SMA1.EHE. ML:1.6 0.000117160645 0.6016 AML other m 2018-05-31T10:24:17.71
IV.SMA1.EHN. ML:1.9 0.0001959225 0.864 AML other m 2018-05-31T10:24:19.93
IV.RM33.HNE. ML:1.8 0.00013515647 0.4992 AML other m 2018-05-31T10:24:24.02
IV.RM33.EHE. ML:1.7 0.00010140471 0.1152 AML other m 2018-05-31T10:24:21.69
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download