Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 18-01-2017 and time 18:58:03 (Italy) in region 4 km SW Amatrice (RI)

A magnitude ML 2.0 earthquake occured in region: 4 km SW Amatrice (RI), on

  • 18-01-2017 17:58:03 (UTC)
  • 18-01-2017 18:58:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6040, 13.2570 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 4 2657 2657
Cittareale RI 8 482 3139
Montereale AQ 9 2581 5720
Capitignano AQ 10 665 6385
Accumoli RI 10 667 7052
Campotosto AQ 11 542 7594
Borbona RI 14 617 8211
Posta RI 16 694 8905
Cagnano Amiterno AQ 16 1369 10274
Barete AQ 17 737 11011
Pizzoli AQ 19 4326 15337
Arquata del Tronto AP 19 1178 16515
Crognaleto TE 19 1297 17812

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of L'Aquila (69753 inhabitants)
37 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
80 Km W of Chieti (51815 inhabitants)
80 Km NE of Guidonia Montecelio (88673 inhabitants)
80 Km W of Pescara (121014 inhabitants)
81 Km NE of Tivoli (56533 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
97 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 2.0 2017-01-18
17:58:03		 42.6042 13.2567 11 2019-07-19
13:20:43		 Bollettino Sismico Italiano INGV 54852691
Reviewed
Rev100 		ML 2.2 2017-01-18
17:58:03		 42.602 13.2613 11 2017-01-18
18:14:33		 Sala Sismica INGV-Roma 39245561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-18 17:58:03 ± 0.05
Latitude 42.6042 ± 0.0036
Longitude 13.2567 ± 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 54852691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 373
Semi-minor axis of confidence ellipse (meter) 312
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 56
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.06385
Epicentral distance of station farthest from the epicenter (degree) 0.52341
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 23
Type of magnitude ML
Reference to an origin 54852691
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-03-26 09:19:31

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 39245561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-01-18 18:14:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHZ. 2017-01-18T17:58:21.18 0.3 undecidable manual S 327 52.9026 50 0.59 60
IV.CESX.HHZ. 2017-01-18T17:58:21.27 0.3 undecidable manual S 271 54.7008 50 0.19 66
IV.GUMA.HHZ. 2017-01-18T17:58:20.69 0.6 undecidable manual S 7 51.2154 50 0.53 41
IV.FDMO.HHZ. 2017-01-18T17:58:19.68 0.6 undecidable manual S 344 49.9167 50 -0.12 45
IV.FEMA.HNE. 2017-01-18T17:58:18.44 0.6 undecidable manual S 337 43.1235 50 0.45 43
IV.FIAM.HNN. 2017-01-18T17:58:16.88 0.6 undecidable manual S 197 39.0276 50 -0.01 47
IV.ARRO.EHZ. 2017-01-18T17:58:16.94 0.3 undecidable manual S 266 40.2264 50 -0.26 67
IV.TRTR.HHE. 2017-01-18T17:58:15.25 0.3 undecidable manual P 67 58.0974 50 0.91 52
IV.GIGS.HHZ. 2017-01-18T17:58:14.22 0.3 undecidable manual S 123 30.8469 50 -0.48 65
IV.CESI.HHZ. 2017-01-18T17:58:13.70 0.3 undecidable manual P 327 52.9026 50 0.17 67
IV.CESX.HHZ. 2017-01-18T17:58:13.79 0.3 undecidable manual P 271 54.7008 50 -0.02 69
IV.T1217.EHZ. 2017-01-18T17:58:13.91 0.3 undecidable manual S 294 29.1486 50 -0.34 67
IV.GUMA.HHZ. 2017-01-18T17:58:13.26 0.1 undecidable manual P 7 51.2154 50 -0.02 92
IV.FDMO.HHZ. 2017-01-18T17:58:12.88 0.3 undecidable manual P 344 49.9167 50 -0.19 67
IV.LNSS.HHZ. 2017-01-18T17:58:11.07 0.3 undecidable manual S 270 17.6712 121 0.06 73
IV.ARRO.EHZ. 2017-01-18T17:58:11.48 0.3 undecidable manual P 266 40.2264 50 -0.09 69
IV.FIAM.HNN. 2017-01-18T17:58:11.28 0.3 undecidable manual P 197 39.0276 50 -0.11 69
IV.T1247.HHZ. 2017-01-18T17:58:11.59 0.6 undecidable manual S 169 18.3705 120 0.37 45
IV.FEMA.HNE. 2017-01-18T17:58:11.70 0.3 undecidable manual P 337 43.1235 50 -0.33 66
IV.GIGS.HHZ. 2017-01-18T17:58:09.95 0.3 undecidable manual P 123 30.8469 50 -0.18 69
IV.RM33.EHZ. 2017-01-18T17:58:09.52 0.6 undecidable manual S 198 11.0778 133 0.34 46
IV.T1218.EHZ. 2017-01-18T17:58:09.65 0.3 undecidable manual S 302 13.6752 127 -0.2 71
IV.T1202.EHE. 2017-01-18T17:58:09.12 0.6 undecidable manual S 347 11.2776 133 -0.11 49
IV.T1217.EHZ. 2017-01-18T17:58:09.55 0.3 undecidable manual P 294 29.1486 50 -0.31 68
IV.CAMP.HHZ. 2017-01-18T17:58:09.97 0.3 undecidable manual S 121 14.5743 126 -0.14 72
IV.SMA1.EHZ. 2017-01-18T17:58:08.26 0.1 undecidable manual S 66 7.0929 146 0 100
IV.LNSS.HHZ. 2017-01-18T17:58:08.03 0.1 undecidable manual P 270 17.6712 121 0.04 98
IV.T1204.EHZ. 2017-01-18T17:58:08.30 0.3 undecidable manual S 32 9.3795 138 -0.45 68
IV.T1247.HHZ. 2017-01-18T17:58:08.10 0.3 undecidable manual P 169 18.3705 120 -0.02 73
IV.T1218.EHZ. 2017-01-18T17:58:07.26 0.1 undecidable manual P 302 13.6752 127 -0.07 98
IV.T1202.EHE. 2017-01-18T17:58:07.07 0.1 undecidable manual P 347 11.2776 133 0.1 97
IV.CAMP.HHZ. 2017-01-18T17:58:07.46 0.1 undecidable manual P 121 14.5743 126 -0.02 98
IV.RM33.EHZ. 2017-01-18T17:58:07.25 0.1 undecidable manual P 198 11.0778 133 0.31 93
IV.T1204.EHZ. 2017-01-18T17:58:06.63 0.1 undecidable manual P 32 9.3795 138 -0.06 98
IV.SMA1.EHZ. 2017-01-18T17:58:06.57 0.1 undecidable manual P 66 7.0929 146 0.16 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNE. ML:2.3 0.0024766504999999997 0.2048 AML other m 2017-01-18T17:58:10.22
IV.RM33.EHE. ML:2.3 0.002327702 0.2048 AML other m 2017-01-18T17:58:10.23
IV.RM33.EHN. ML:2.2 0.0019966385 0.1536 AML other m 2017-01-18T17:58:10.23
IV.RM33.HNN. ML:2.2 0.0019333355000000002 0.1664 AML other m 2017-01-18T17:58:10.23
IV.CAMP.HHE. ML:1.5 0.000273766 0.32 AML other m 2017-01-18T17:58:10.20
IV.CAMP.HHN. ML:1.7 0.00045635945 0.3456 AML other m 2017-01-18T17:58:11.19
IV.LNSS.HHN. ML:2.3 0.001679975 0.1408 AML other m 2017-01-18T17:58:11.83
IV.LNSS.HHE. ML:2.3 0.0017973759999999998 0.1664 AML other m 2017-01-18T17:58:11.86
IV.T1217.EHN. ML:1.9 0.000397056265 0.064 AML other m 2017-01-18T17:58:14.19
IV.T1217.HNE. ML:1.8 0.0003240254 0.1536 AML other m 2017-01-18T17:58:15.98
IV.T1217.EHE. ML:1.7 0.00026520715 0.0896 AML other m 2017-01-18T17:58:14.04
IV.T1217.HNN. ML:2.0 0.000474986 0.2176 AML other m 2017-01-18T17:58:14.19
IV.GIGS.HHE. ML:1.4 0.00011484159 0.2304 AML other m 2017-01-18T17:58:14.34
IV.GIGS.HHN. ML:1.2 0.00007195248 0.1792 AML other m 2017-01-18T17:58:14.25
IV.ARRO.EHN. ML:1.8 0.00020533895000000003 0.2688 AML other m 2017-01-18T17:58:18.27
IV.ARRO.EHE. ML:1.7 0.00017009215 0.2304 AML other m 2017-01-18T17:58:18.39
IV.FDMO.HHN. ML:1.7 0.0001305064 0.1792 AML other m 2017-01-18T17:58:20.65
IV.FDMO.HHE. ML:1.6 0.0000958098 0.1408 AML other m 2017-01-18T17:58:22.68
IV.GUMA.HHE. ML:2.5 0.00085428905 0.2944 AML other m 2017-01-18T17:58:20.92
IV.GUMA.HNN. ML:2.5 0.0008128007 0.5632 AML other m 2017-01-18T17:58:21.36
IV.GUMA.HHN. ML:2.4 0.0006499351 0.4224 AML other m 2017-01-18T17:58:21.40
IV.GUMA.HNE. ML:2.3 0.0005592506500000001 0.2816 AML other m 2017-01-18T17:58:20.92
IV.CESI.HHN. ML:1.8 0.0001395935 0.3968 AML other m 2017-01-18T17:58:25.10
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