Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 18-01-2017 and time 14:04:16 (Italy) in region 5 km S Amatrice (RI)

A magnitude ML 2.1 earthquake occured in region: 5 km S Amatrice (RI), on

  • 18-01-2017 13:04:16 (UTC)
  • 18-01-2017 14:04:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5820, 13.2880 at 10 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
Amatrice RI 5 2657 2657
Capitignano AQ 7 665 3322
Montereale AQ 7 2581 5903
Campotosto AQ 7 542 6445
Cittareale RI 11 482 6927
Accumoli RI 13 667 7594
Cagnano Amiterno AQ 15 1369 8963
Barete AQ 15 737 9700
Borbona RI 15 617 10317
Pizzoli AQ 16 4326 14643
Crognaleto TE 16 1297 15940
Posta RI 17 694 16634
Cortino TE 19 656 17290

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NW of L'Aquila (69753 inhabitants)
35 Km W of Teramo (54892 inhabitants)
53 Km E of Terni (111501 inhabitants)
63 Km SE of Foligno (57155 inhabitants)
71 Km W of Montesilvano (53738 inhabitants)
77 Km W of Chieti (51815 inhabitants)
77 Km W of Pescara (121014 inhabitants)
79 Km NE of Guidonia Montecelio (88673 inhabitants)
80 Km NE of Tivoli (56533 inhabitants)
94 Km SE of Perugia (166134 inhabitants)
99 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 2017-01-18
13:04:16		 42.5822 13.2877 10 2019-07-19
13:20:41		 Bollettino Sismico Italiano INGV 54265311
Reviewed
Rev100 		ML 2.1 2017-01-18
13:04:16		 42.5803 13.2978 10 2017-01-18
13:13:45		 Sala Sismica INGV-Roma 39212291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-18 13:04:16 ± 0.06
Latitude 42.5822 ± 0.0036
Longitude 13.2877 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 54265311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 479
Semi-minor axis of confidence ellipse (meter) 282
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 57
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.05936
Epicentral distance of station farthest from the epicenter (degree) 0.66999
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 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 54265311
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-03-02 14:30:22

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 39212291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-01-18 13:13:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2017-01-18T13:04:38.70 0.6 undecidable manual S 315 72.2721 50 0.4 41
IV.CSP1.EHZ. 2017-01-18T13:04:34.10 0.6 undecidable manual S 353 56.8986 50 -0.09 45
IV.T0110.HHZ. 2017-01-18T13:04:34.58 0.6 undecidable manual S 134 55.9995 50 0.64 39
IV.CESX.HHZ. 2017-01-18T13:04:34.58 0.6 undecidable manual S 273 57.2982 50 0.28 44
IV.CESI.HHZ. 2017-01-18T13:04:34.47 0.3 undecidable manual S 327 56.2992 50 0.44 63
IV.GUMA.HHZ. 2017-01-18T13:04:33.96 0.6 undecidable manual S 4 53.4021 50 0.7 39
IV.FEMA.HNE. 2017-01-18T13:04:31.62 0.6 undecidable manual S 335 46.4202 50 0.25 45
IV.FAGN.HHZ. 2017-01-18T13:04:30.40 0.3 undecidable manual S 145 42.624 50 0.01 71
IV.SRES.HHZ. 2017-01-18T13:04:29.68 0.3 undecidable manual P 239 74.37 50 0.35 62
IV.ASSB.HHZ. 2017-01-18T13:04:29.34 0.3 undecidable manual P 315 72.2721 50 0.32 63
IV.FIAM.HHZ. 2017-01-18T13:04:28.73 0.6 undecidable manual S 202 37.5291 50 -0.29 45
IV.TRTR.HHE. 2017-01-18T13:04:27.61 0.1 undecidable manual P 64 56.8986 50 0.97 68
IV.T1217.EHZ. 2017-01-18T13:04:27.38 0.3 undecidable manual S 296 32.4453 50 -0.28 68
IV.CESI.HHZ. 2017-01-18T13:04:26.43 0.3 undecidable manual P 327 56.2992 50 -0.12 68
IV.CSP1.EHZ. 2017-01-18T13:04:26.32 0.3 undecidable manual P 353 56.8986 50 -0.33 65
IV.NRCA.HHZ. 2017-01-18T13:04:26.81 0.6 undecidable manual S 333 31.2465 50 -0.53 43
IV.T0110.HHZ. 2017-01-18T13:04:26.50 0.3 undecidable manual P 134 55.9995 50 0 69
IV.CESX.HHZ. 2017-01-18T13:04:26.43 0.1 undecidable manual P 273 57.2982 50 -0.28 87
IV.GUMA.HHZ. 2017-01-18T13:04:26.05 0.1 undecidable manual P 4 53.4021 50 -0.06 92
IV.GIGS.HHZ. 2017-01-18T13:04:25.57 0.3 undecidable manual S 121 27.3504 50 -0.73 60
IV.FEMA.HNE. 2017-01-18T13:04:25.02 0.6 undecidable manual P 335 46.4202 50 0 47
IV.LNSS.HHZ. 2017-01-18T13:04:24.17 0.6 undecidable manual S 277 20.3685 117 -0.07 49
IV.FAGN.HHZ. 2017-01-18T13:04:24.72 0.1 undecidable manual P 145 42.624 50 0.27 90
IV.ARRO.EHE. 2017-01-18T13:04:24.23 0.1 undecidable manual P 270 42.624 50 -0.22 91
IV.FIAM.HHZ. 2017-01-18T13:04:23.54 0.3 undecidable manual P 202 37.5291 50 -0.12 70
IV.T1202.EHE. 2017-01-18T13:04:23.04 0.6 undecidable manual S 339 14.3745 125 0.56 44
IV.T1247.HHZ. 2017-01-18T13:04:23.07 0.6 undecidable manual S 177 15.6732 123 0.24 47
IV.T1218.EHZ. 2017-01-18T13:04:23.07 0.6 undecidable manual S 305 17.0718 121 -0.19 48
IV.T1217.EHZ. 2017-01-18T13:04:22.52 0.1 undecidable manual P 296 32.4453 50 -0.36 90
IV.NRCA.HHZ. 2017-01-18T13:04:22.40 0.3 undecidable manual P 333 31.2465 50 -0.3 68
IV.CAMP.HHZ. 2017-01-18T13:04:21.24 0.6 undecidable manual S 117 11.1777 132 -0.36 46
IV.RM33.HNZ. 2017-01-18T13:04:21.57 0.6 undecidable manual S 216 10.0788 135 0.24 48
IV.GIGS.HHZ. 2017-01-18T13:04:21.59 0.3 undecidable manual P 121 27.3504 50 -0.5 66
IV.SMA1.EHZ. 2017-01-18T13:04:20.35 0.6 undecidable manual S 36 6.5934 147 -0.22 48
IV.T1218.EHZ. 2017-01-18T13:04:20.25 0.1 undecidable manual P 305 17.0718 121 -0.09 97
IV.LNSS.HHZ. 2017-01-18T13:04:20.87 0.1 undecidable manual P 277 20.3685 117 -0.04 98
IV.T1202.EHE. 2017-01-18T13:04:20.23 0.3 undecidable manual P 339 14.3745 125 0.34 70
IV.T1204.EHZ. 2017-01-18T13:04:20.97 0.3 undecidable manual S 13 10.6782 134 -0.51 68
IV.T1247.HHZ. 2017-01-18T13:04:20.19 0.1 undecidable manual P 177 15.6732 123 0.1 97
IV.RM33.HNZ. 2017-01-18T13:04:19.45 0.1 undecidable manual P 216 10.0788 135 0.22 96
IV.T1204.EHZ. 2017-01-18T13:04:19.22 0.1 undecidable manual P 13 10.6782 134 -0.09 98
IV.CAMP.HHZ. 2017-01-18T13:04:19.39 0.1 undecidable manual P 117 11.1777 132 0.01 100
IV.SMA1.EHZ. 2017-01-18T13:04:18.89 0.1 undecidable manual P 36 6.5934 147 0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1217.HNE. ML:2.0 0.00043470019999999996 0.0768 AML other m 2017-01-18T13:04:28.21
IV.T1217.EHN. ML:1.8 0.000406 0.52 AML other m 2017-01-18T13:04:28.42
IV.T1217.HNN. ML:1.8 0.00047650000000000004 0.58 AML other m 2017-01-18T13:04:28.13
IV.RM33.HNE. ML:2.5 0.003936038 0.2624 AML other m 2017-01-18T13:04:22.20
IV.RM33.EHE. ML:2.5 0.0038619769999999995 0.2752 AML other m 2017-01-18T13:04:21.76
IV.RM33.EHN. ML:2.4 0.0034301529999999996 0.2816 AML other m 2017-01-18T13:04:21.72
IV.RM33.HNN. ML:2.4 0.0035741165 0.2688 AML other m 2017-01-18T13:04:21.73
IV.LNSS.HHE. ML:2.3 0.001567572 0.2624 AML other m 2017-01-18T13:04:24.37
IV.LNSS.HHN. ML:2.4 0.001910096 0.224 AML other m 2017-01-18T13:04:24.47
IV.GIGS.HHN. ML:1.3 0.000101584335 0.1408 AML other m 2017-01-18T13:04:27.60
IV.GIGS.HHE. ML:1.3 0.00011652946 0.1664 AML other m 2017-01-18T13:04:25.72
IV.T1217.EHE. ML:2.0 0.00047579234999999996 0.0768 AML other m 2017-01-18T13:04:28.21
IV.FIAM.HHN. ML:1.6 0.00014468903999999999 0.3584 AML other m 2017-01-18T13:04:31.16
IV.FIAM.HHE. ML:1.7 0.00019959165 0.4224 AML other m 2017-01-18T13:04:32.66
IV.GUMA.HHN. ML:2.6 0.00091914075 0.4992 AML other m 2017-01-18T13:04:34.58
IV.GUMA.HNE. ML:2.4 0.0005842513 0.2944 AML other m 2017-01-18T13:04:34.19
IV.GUMA.HHE. ML:2.6 0.00093608735 0.3392 AML other m 2017-01-18T13:04:34.18
IV.GUMA.HNN. ML:2.6 0.00090417185 0.448 AML other m 2017-01-18T13:04:34.61
IV.CSP1.EHE. ML:1.9 0.000183844895 0.2752 AML other m 2017-01-18T13:04:36.28
IV.CSP1.EHN. ML:2.0 0.000231272 0.3136 AML other m 2017-01-18T13:04:36.10
IV.CESX.HHE. ML:1.9 0.00018209985 0.2368 AML other m 2017-01-18T13:04:37.72
IV.CESX.HHN. ML:2.2 0.00031349135 0.224 AML other m 2017-01-18T13:04:36.03
IV.CESI.HHN. ML:1.9 0.00017244835 0.2624 AML other m 2017-01-18T13:04:41.47
IV.CESI.HHE. ML:1.7 0.00010593883999999999 0.3968 AML other m 2017-01-18T13:04:42.04
IV.T0110.HHE. ML:2.2 0.00031914109 0.384 AML other m 2017-01-18T13:04:38.97
IV.T0110.HHN. ML:2.2 0.00035188375 0.2624 AML other m 2017-01-18T13:04:35.67
IV.T1220.HNN. ML:2.3 0.000405656 0.3392 AML other m 2017-01-18T13:04:40.10
IV.T1220.HNE. ML:2.5 0.0006339376 0.416 AML other m 2017-01-18T13:04:41.38
IV.T1220.EHN. ML:2.3 0.00043239195 0.32 AML other m 2017-01-18T13:04:46.70
IV.T1220.EHE. ML:2.5 0.0006356506 0.4224 AML other m 2017-01-18T13:04:41.39
IV.ASSB.HHE. ML:1.9 0.00011331534999999999 0.4032 AML other m 2017-01-18T13:04:43.78
IV.ASSB.HHN. ML:1.9 0.000114443245 0.1984 AML other m 2017-01-18T13:04:40.68
IV.SRES.HHE. ML:1.6 0.000058022810000000004 0.5824 AML other m 2017-01-18T13:04:47.99
IV.SRES.HHN. ML:1.7 0.00008343359499999999 0.4224 AML other m 2017-01-18T13:04:47.52
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