Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 24-02-2018 and time 01:45:07 (Italy) in region 6 km W Arquata del Tronto (AP)

A magnitude ML 2.1 earthquake occured in region: 6 km W Arquata del Tronto (AP), on

  • 24-02-2018 00:45:07 (UTC)
  • 24-02-2018 01:45:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7640, 13.2290 at 11 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
Arquata del Tronto AP 6 1178 1178
Accumoli RI 8 667 1845
Norcia PG 12 4957 6802
Montegallo AP 12 523 7325
Acquasanta Terme AP 15 2916 10241
Amatrice RI 16 2657 12898
Castelsantangelo sul Nera MC 16 281 13179
Cittareale RI 17 482 13661
Montemonaco AP 17 604 14265
Cascia PG 18 3217 17482

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
48 Km E of Foligno (57155 inhabitants)
48 Km N of L'Aquila (69753 inhabitants)
53 Km E of Terni (111501 inhabitants)
78 Km E of Perugia (166134 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
87 Km W of Pescara (121014 inhabitants)
90 Km NW of Chieti (51815 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km NE of Tivoli (56533 inhabitants)
98 Km S of Ancona (100861 inhabitants)
100 Km E of Viterbo (67173 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 2.1 2018-02-24
00:45:07		 42.7643 13.2288 11 2019-04-24
14:49:36		 Bollettino Sismico Italiano INGV 57609111
Reviewed
Rev100 		ML 2.1 2018-02-24
00:45:07		 42.7617 13.224 11 2018-02-24
00:54:39		 Sala Sismica INGV-Roma 54116041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-02-24 00:45:07 ± 0.05
Latitude 42.7643 ± 0.0027
Longitude 13.2288 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 57609111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 407
Semi-minor axis of confidence ellipse (meter) 38
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.10882
Epicentral distance of station farthest from the epicenter (degree) 0.57197
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 30
Type of magnitude ML
Reference to an origin 57609111
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-06-07 09:09:28

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 34
Type of magnitude ML
Reference to an origin 54116041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-02-24 00:54:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2018-02-24T00:45:27.49 0.6 undecidable manual S 351 63.492 50 0.13 45
IV.SNTG.HHZ. 2018-02-24T00:45:26.65 0.3 undecidable manual S 337 59.1963 50 0.43 64
IV.MOMA.HHZ. 2018-02-24T00:45:25.19 0.6 undecidable manual S 275 53.8017 50 0.42 43
IV.CESX.HHZ. 2018-02-24T00:45:25.48 0.6 undecidable manual S 252 55.1004 50 0.36 44
IV.FIAM.HHZ. 2018-02-24T00:45:25.75 0.3 undecidable manual S 189 55.7997 50 0.45 64
IV.GIGS.HHZ. 2018-02-24T00:45:21.96 0.3 undecidable manual S 141 44.5221 50 -0.32 67
IV.PF6.EHZ. 2018-02-24T00:45:21.34 0.6 undecidable manual S 356 41.5251 50 -0.15 47
IV.GUMA.HHZ. 2018-02-24T00:45:20.09 0.3 undecidable manual S 15 34.2435 50 0.56 64
IV.CESI.HHZ. 2018-02-24T00:45:20.09 0.3 undecidable manual S 315 37.5291 50 -0.32 68
IV.TERO.HHZ. 2018-02-24T00:45:19.33 0.3 undecidable manual S 117 34.3434 50 -0.25 69
IV.MF5.EHZ. 2018-02-24T00:45:19.00 0.3 undecidable manual S 37 31.0467 50 0.3 69
IV.EL6.EHZ. 2018-02-24T00:45:18.98 0.3 undecidable manual P 351 63.492 50 -0.15 67
IV.FAGN.HHZ. 2018-02-24T00:45:18.80 1.0 undecidable manual P 152 62.493 50 -0.17 22
IV.CAMP.HHZ. 2018-02-24T00:45:18.05 0.3 undecidable manual S 150 29.3484 50 -0.17 71
IV.SNTG.HHZ. 2018-02-24T00:45:18.63 0.3 undecidable manual P 337 59.1963 50 0.16 68
IV.FEMA.HNZ. 2018-02-24T00:45:17.10 0.6 undecidable manual S 326 26.3514 50 -0.33 46
IV.CESX.HHZ. 2018-02-24T00:45:17.46 0.3 undecidable manual P 252 55.1004 50 -0.38 65
IV.FIAM.HHZ. 2018-02-24T00:45:17.83 0.1 undecidable manual P 189 55.7997 50 -0.11 92
IV.MOMA.HHZ. 2018-02-24T00:45:17.65 0.3 undecidable manual P 275 53.8017 50 0.02 70
IV.OFFI.HHZ. 2018-02-24T00:45:16.42 0.1 undecidable manual P 63 41.7249 50 0.65 81
IV.MNTP.HNZ. 2018-02-24T00:45:16.74 0.6 positive manual P 25 45.7209 50 0.35 44
IV.LNSS.HHZ. 2018-02-24T00:45:16.95 0.6 undecidable manual S 221 23.5542 50 0.25 47
IV.PF6.EHZ. 2018-02-24T00:45:15.38 0.1 positive manual P 356 41.5251 50 -0.36 89
IV.ARRO.EHZ. 2018-02-24T00:45:15.56 0.6 undecidable manual P 242 43.0236 50 -0.41 44
IV.GIGS.HHZ. 2018-02-24T00:45:15.80 0.1 undecidable manual P 141 44.5221 50 -0.4 88
IV.T1299.EHZ. 2018-02-24T00:45:14.74 0.3 undecidable manual S 163 15.0738 126 0.41 69
IV.MF5.EHZ. 2018-02-24T00:45:14.27 0.1 undecidable manual P 37 31.0467 50 0.14 95
IV.SMA1.EHZ. 2018-02-24T00:45:14.89 0.3 undecidable manual S 150 17.1717 122 -0.05 75
IV.TERO.HHZ. 2018-02-24T00:45:14.36 0.1 undecidable manual P 117 34.3434 50 -0.28 92
IV.MMO1.EHZ. 2018-02-24T00:45:14.57 0.3 undecidable manual S 28 16.9719 123 -0.3 71
IV.GUMA.HHZ. 2018-02-24T00:45:14.70 0.1 positive manual P 15 34.2435 50 0.09 96
IV.MC2.EHZ. 2018-02-24T00:45:14.81 0.3 undecidable manual S 349 16.6722 123 0.03 75
IV.CESI.HHZ. 2018-02-24T00:45:14.91 0.1 negative manual P 315 37.5291 50 -0.21 93
IV.LNSS.HHZ. 2018-02-24T00:45:13.17 0.3 undecidable manual P 221 23.5542 50 0.19 72
IV.NRCA.HNZ. 2018-02-24T00:45:13.35 0.3 undecidable manual S 309 12.0768 132 -0.17 73
IV.FEMA.HNZ. 2018-02-24T00:45:13.02 0.3 undecidable manual P 326 26.3514 50 -0.38 68
IV.CAMP.HHZ. 2018-02-24T00:45:13.76 0.1 undecidable manual P 150 29.3484 50 -0.09 96
IV.SMA1.EHZ. 2018-02-24T00:45:12.01 0.3 undecidable manual P 150 17.1717 122 0.05 74
IV.MC2.EHZ. 2018-02-24T00:45:11.89 0.1 undecidable manual P 349 16.6722 123 0.03 100
IV.T1299.EHZ. 2018-02-24T00:45:11.94 0.1 positive manual P 163 15.0738 126 0.33 94
IV.NRCA.HNZ. 2018-02-24T00:45:11.20 0.1 negative manual P 309 12.0768 132 0.06 100
IV.MMO1.EHZ. 2018-02-24T00:45:11.82 0.1 positive manual P 28 16.9719 123 -0.1 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1214.EHN. ML:2.0 0.001715 0.3 AML other m 2018-02-24T00:45:12.26
IV.T1214.HNN. ML:2.0 0.001745 0.28 AML other m 2018-02-24T00:45:12.26
IV.NRCA.HHE. ML:2.3 0.00221 0.1 AML other m 2018-02-24T00:45:13.48
IV.T1214.EHE. ML:1.9 0.0012850000000000001 0.16 AML other m 2018-02-24T00:45:13.66
IV.NRCA.HHN. ML:2.2 0.0017250000000000002 0.98 AML other m 2018-02-24T00:45:13.58
IV.T1214.HNE. ML:1.9 0.001365 0.16 AML other m 2018-02-24T00:45:13.66
IV.NRCA.HNN. ML:2.2 0.0017900000000000001 0.72 AML other m 2018-02-24T00:45:14.15
IV.NRCA.HNE. ML:2.3 0.00221 0.42 AML other m 2018-02-24T00:45:14.48
IV.T1299.HNN. ML:2.2 0.0013195 1.5 AML other m 2018-02-24T00:45:14.93
IV.T1299.EHN. ML:2.2 0.00136 1.5 AML other m 2018-02-24T00:45:14.94
IV.T1299.HNE. ML:2.1 0.001165 0.18 AML other m 2018-02-24T00:45:15.00
IV.T1299.EHE. ML:2.1 0.0011949999999999999 0.2 AML other m 2018-02-24T00:45:15.00
IV.SMA1.EHE. ML:2.4 0.00228 0.24 AML other m 2018-02-24T00:45:15.16
IV.SMA1.EHN. ML:2.2 0.001295 0.58 AML other m 2018-02-24T00:45:15.34
IV.CAMP.HHE. ML:2.4 0.00132 0.24 AML other m 2018-02-24T00:45:18.33
OB.GAVE.EHN. ML:2.2 0.0008029999999999999 1.26 AML other m 2018-02-24T00:45:18.69
IV.CAMP.HHN. ML:2.1 0.0006770000000000001 0.22 AML other m 2018-02-24T00:45:19.21
IV.TERO.HHN. ML:2.0 0.00045299999999999995 0.1 AML other m 2018-02-24T00:45:19.57
IV.TERO.HHE. ML:2.0 0.00042200000000000007 1.56 AML other m 2018-02-24T00:45:19.80
IV.CESI.HHE. ML:2.0 0.0003745 0.98 AML other m 2018-02-24T00:45:20.84
IV.CESI.HHN. ML:2.2 0.000554 0.32 AML other m 2018-02-24T00:45:21.20
OB.GAVE.EHE. ML:1.9 0.0004385 0.44 AML other m 2018-02-24T00:45:21.32
IV.PF6.EHE. ML:2.1 0.0004345 0.7 AML other m 2018-02-24T00:45:22.44
IV.PF6.EHN. ML:1.7 0.00017299999999999998 0.82 AML other m 2018-02-24T00:45:22.54
IV.MOMA.HHN. ML:2.0 0.0002195 0.3 AML other m 2018-02-24T00:45:26.18
IV.MOMA.HHE. ML:2.0 0.0002525 0.22 AML other m 2018-02-24T00:45:26.44
IV.CESX.HHN. ML:1.8 0.00015000000000000001 1.3 AML other m 2018-02-24T00:45:28.05
IV.CESX.HHE. ML:1.7 0.0001235 1.38 AML other m 2018-02-24T00:45:31.25
IV.FAGN.HHN. ML:2.3 0.0004035 0.62 AML other m 2018-02-24T00:45:31.24
IV.FAGN.HHE. ML:2.3 0.00040100000000000004 0.4 AML other m 2018-02-24T00:45:32.60
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