Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 18-01-2017 and time 20:52:51 (Italy) in region 6 km SW Amatrice (RI)

A magnitude ML 2.0 earthquake occured in region: 6 km SW Amatrice (RI), on

  • 18-01-2017 19:52:51 (UTC)
  • 18-01-2017 20:52:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5860, 13.2400 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
Amatrice RI 6 2657 2657
Montereale AQ 7 2581 5238
Cittareale RI 7 482 5720
Capitignano AQ 9 665 6385
Campotosto AQ 11 542 6927
Borbona RI 12 617 7544
Accumoli RI 12 667 8211
Posta RI 14 694 8905
Cagnano Amiterno AQ 14 1369 10274
Barete AQ 15 737 11011
Pizzoli AQ 17 4326 15337

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NW of L'Aquila (69753 inhabitants)
39 Km W of Teramo (54892 inhabitants)
49 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
78 Km NE of Guidonia Montecelio (88673 inhabitants)
78 Km NE of Tivoli (56533 inhabitants)
81 Km W of Chieti (51815 inhabitants)
81 Km W of Pescara (121014 inhabitants)
90 Km SE of Perugia (166134 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
99 Km NE of Roma (2864731 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
19:52:51		 42.5863 13.2397 11 2019-07-19
13:20:43		 Bollettino Sismico Italiano INGV 54898901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-18 19:52:51 ± 0.06
Latitude 42.5863 ± 0.0036
Longitude 13.2397 ± 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 54898901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 491
Semi-minor axis of confidence ellipse (meter) 319
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 223
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
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) 0.07914
Epicentral distance of station farthest from the epicenter (degree) 0.48473
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 54898901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-03-28 11:00:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHE. 2017-01-18T19:53:08.03 0.6 undecidable manual S 330 53.8017 50 0.07 46
IV.GUMA.HNN. 2017-01-18T19:53:08.51 0.6 undecidable manual S 8 53.4021 50 0.66 40
IV.FDMO.HHN. 2017-01-18T19:53:07.52 0.6 undecidable manual S 346 51.4152 50 0.2 45
IV.FIAM.HHZ. 2017-01-18T19:53:03.47 0.6 undecidable manual S 196 36.741 50 0.08 48
IV.GIGS.HHZ. 2017-01-18T19:53:01.30 0.6 undecidable manual S 118 30.9468 50 -0.57 43
IV.CESI.HHE. 2017-01-18T19:53:01.63 0.3 undecidable manual P 330 53.8017 50 0.8 56
IV.GUMA.HNN. 2017-01-18T19:53:00.83 0.3 undecidable manual P 8 53.4021 50 0.06 70
IV.T1217.HNZ. 2017-01-18T19:53:00.89 0.6 undecidable manual S 299 28.749 50 -0.38 45
IV.FDMO.HHN. 2017-01-18T19:53:00.35 0.3 undecidable manual P 346 51.4152 50 -0.11 69
IV.FIAM.HHZ. 2017-01-18T19:52:58.29 0.3 undecidable manual P 196 36.741 50 0.1 71
IV.T1247.HHZ. 2017-01-18T19:52:58.11 0.6 undecidable manual S 163 16.7721 123 0.09 49
IV.ARRO.EHZ. 2017-01-18T19:52:58.28 0.3 undecidable manual P 269 38.7279 50 -0.22 69
IV.CAMP.HHE. 2017-01-18T19:52:57.24 0.6 undecidable manual S 112 14.9739 126 -0.25 48
IV.GIGS.HHZ. 2017-01-18T19:52:57.00 0.1 undecidable manual P 118 30.9468 50 -0.31 92
IV.LNSS.HHZ. 2017-01-18T19:52:57.90 0.3 undecidable manual S 277 16.3725 124 -0.01 75
IV.RM33.HNZ. 2017-01-18T19:52:56.09 0.3 undecidable manual S 193 8.7801 141 0.15 74
IV.T1217.HNZ. 2017-01-18T19:52:56.71 0.3 undecidable manual P 299 28.749 50 -0.25 70
IV.T1218.EHZ. 2017-01-18T19:52:56.68 0.3 undecidable manual S 312 13.7751 128 -0.49 68
IV.SMA1.EHZ. 2017-01-18T19:52:55.92 0.3 undecidable manual S 58 9.1797 140 -0.11 74
IV.LNSS.HHZ. 2017-01-18T19:52:55.04 0.1 positive manual P 277 16.3725 124 0.02 100
IV.T1247.HHZ. 2017-01-18T19:52:55.20 0.1 undecidable manual P 163 16.7721 123 0.12 98
IV.T1218.EHZ. 2017-01-18T19:52:54.50 0.1 undecidable manual P 312 13.7751 128 -0.1 99
IV.SMA1.EHZ. 2017-01-18T19:52:54.05 0.1 undecidable manual P 58 9.1797 140 0.1 99
IV.RM33.HNZ. 2017-01-18T19:52:54.15 0.1 negative manual P 193 8.7801 141 0.26 96
IV.CAMP.HHE. 2017-01-18T19:52:54.84 0.1 undecidable manual P 112 14.9739 126 0.06 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:2.4 0.003054424 0.384 AML other m 2017-01-18T19:52:56.24
IV.SMA1.EHE. ML:2.4 0.0030043625 0.2048 AML other m 2017-01-18T19:52:56.60
IV.RM33.HNE. ML:2.4 0.0029916415 0.2432 AML other m 2017-01-18T19:52:56.25
IV.RM33.EHE. ML:2.4 0.0028791575 0.256 AML other m 2017-01-18T19:52:56.24
IV.RM33.EHN. ML:2.2 0.0021405020000000003 0.0768 AML other m 2017-01-18T19:52:56.38
IV.RM33.HNN. ML:2.2 0.0021406665 0.0896 AML other m 2017-01-18T19:52:56.39
IV.T1218.HNE. ML:1.8 0.0006950407000000001 0.128 AML other m 2017-01-18T19:52:56.83
IV.T1218.EHE. ML:1.8 0.0006793108 0.128 AML other m 2017-01-18T19:52:56.76
IV.T1218.EHN. ML:1.8 0.0006448752 0.128 AML other m 2017-01-18T19:52:56.92
IV.T1218.HNN. ML:1.8 0.0006258528 0.128 AML other m 2017-01-18T19:52:56.92
IV.LNSS.HHE. ML:2.0 0.0009494057 0.1664 AML other m 2017-01-18T19:52:57.99
IV.LNSS.HHN. ML:2.3 0.0015719355 0.1408 AML other m 2017-01-18T19:52:58.10
IV.T1247.HHN. ML:2.0 0.0009339961 0.1792 AML other m 2017-01-18T19:52:59.59
IV.T1247.HHE. ML:2.1 0.00115291625 0.1024 AML other m 2017-01-18T19:52:59.06
IV.GIGS.HHE. ML:1.6 0.0001634602 0.1024 AML other m 2017-01-18T19:53:01.52
IV.GIGS.HHN. ML:1.4 0.000123265 0.1024 AML other m 2017-01-18T19:53:01.53
IV.ARRO.EHN. ML:1.6 0.00012384845 0.192 AML other m 2017-01-18T19:53:05.41
IV.ARRO.EHE. ML:1.6 0.00015204349 0.1792 AML other m 2017-01-18T19:53:04.35
IV.FIAM.HHN. ML:1.5 0.00012916139999999998 0.64 AML other m 2017-01-18T19:53:07.23
IV.FIAM.HHE. ML:1.8 0.00021282762499999998 0.7168 AML other m 2017-01-18T19:53:03.94
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