Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 11-12-2017 and time 07:55:37 (Italy) in region 5 km NW Arquata del Tronto (AP)

A magnitude ML 2.3 earthquake occured in region: 5 km NW Arquata del Tronto (AP), on

  • 11-12-2017 06:55:37 (UTC)
  • 11-12-2017 07:55:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8030, 13.2470 at 14 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 5 1178 1178
Montegallo AP 8 523 1701
Accumoli RI 12 667 2368
Norcia PG 13 4957 7325
Montemonaco AP 13 604 7929
Castelsantangelo sul Nera MC 13 281 8210
Acquasanta Terme AP 14 2916 11126
Montefortino FM 17 1178 12304
Ussita MC 18 444 12748
Preci PG 19 724 13472
Visso MC 19 1107 14579
Amatrice RI 20 2657 17236
Roccafluvione AP 20 2010 19246

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
47 Km E of Foligno (57155 inhabitants)
52 Km N of L'Aquila (69753 inhabitants)
56 Km E of Terni (111501 inhabitants)
78 Km E of Perugia (166134 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
88 Km W of Pescara (121014 inhabitants)
91 Km NW of Chieti (51815 inhabitants)
93 Km S of Ancona (100861 inhabitants)
99 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km NE of Tivoli (56533 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 2017-12-11
06:55:37		 42.803 13.2472 15 2018-09-04
09:10:41		 Bollettino Sismico Italiano INGV 54568021
Reviewed
Rev100 		ML 2.2 2017-12-11
06:55:38		 42.7987 13.2512 11 2017-12-11
07:02:01		 Sala Sismica INGV-Roma 52511091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-12-11 06:55:37 ± 0.07
Latitude 42.8030 ± 0.0027
Longitude 13.2472 ± 0.0037
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 54568021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 339
Semi-minor axis of confidence ellipse (meter) 64
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 80
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 45
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) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.10252
Epicentral distance of station farthest from the epicenter (degree) 0.54319
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 54568021
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-07-27 09:35:44

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 52511091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-12-11 07:02:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHZ. 2017-12-11T06:55:49.67 0.6 undecidable manual S 309 35.742 98 -0.12 47
IV.TERO.HHZ. 2017-12-11T06:55:49.27 0.3 undecidable manual S 124 35.2425 99 -0.41 67
IV.RM33.EHZ. 2017-12-11T06:55:49.20 0.3 undecidable manual S 185 32.745 100 0.2 71
IV.LNSS.HHZ. 2017-12-11T06:55:48.28 0.3 undecidable manual S 217 27.8499 102 0.55 66
IV.FIAM.HHZ. 2017-12-11T06:55:48.22 0.6 undecidable manual P 190 60.2952 94 -0.24 44
IV.GUMA.HHZ. 2017-12-11T06:55:48.49 0.3 undecidable manual S 14 29.6481 101 0.29 69
IV.CSP1.EHZ. 2017-12-11T06:55:48.49 0.6 undecidable manual S 354 32.2455 100 -0.38 45
IV.MF5.EHZ. 2017-12-11T06:55:47.89 0.6 undecidable manual S 40 26.751 103 0.44 45
IV.FDMO.HHZ. 2017-12-11T06:55:47.86 0.3 undecidable manual S 333 28.9488 102 -0.16 71
IV.CESX.HHZ. 2017-12-11T06:55:47.96 0.6 undecidable manual P 248 57.9975 94 -0.15 45
IV.FEMA.HNZ. 2017-12-11T06:55:46.72 0.6 undecidable manual S 318 23.8539 106 0.03 49
IV.ARRO.EHZ. 2017-12-11T06:55:46.30 0.3 undecidable manual P 238 46.4202 96 -0.04 70
IV.OFFI.HHZ. 2017-12-11T06:55:45.73 0.1 undecidable manual P 68 38.5281 98 0.61 84
IV.SMA1.EHZ. 2017-12-11T06:55:45.62 0.3 undecidable manual S 159 20.4684 111 -0.21 72
IV.T1299.EHZ. 2017-12-11T06:55:45.66 0.3 undecidable manual S 171 18.9699 113 0.21 72
IV.T1221.EHZ. 2017-12-11T06:55:44.32 0.3 undecidable manual P 281 33.1446 99 0.01 73
IV.RM33.EHZ. 2017-12-11T06:55:44.24 0.3 undecidable manual P 185 32.745 100 0 73
IV.MC2.EHZ. 2017-12-11T06:55:44.33 0.3 undecidable manual S 339 12.876 128 0.27 71
IV.CESI.HHZ. 2017-12-11T06:55:44.55 0.3 undecidable manual P 309 35.742 98 -0.14 70
IV.TERO.HHZ. 2017-12-11T06:55:44.34 0.1 undecidable manual P 124 35.2425 99 -0.29 91
IV.MF5.EHZ. 2017-12-11T06:55:43.53 0.1 undecidable manual P 40 26.751 103 0.19 95
IV.MTRA.HNZ. 2017-12-11T06:55:43.89 0.3 undecidable manual S 113 13.1757 127 -0.23 73
IV.MMO1.EHZ. 2017-12-11T06:55:43.77 0.1 undecidable manual S 31 12.4764 129 -0.2 98
IV.NRCA.HNZ. 2017-12-11T06:55:43.69 0.3 undecidable manual S 287 11.3775 132 -0.05 75
IV.LNSS.HHZ. 2017-12-11T06:55:43.65 0.1 undecidable manual P 217 27.8499 102 0.14 96
IV.GUMA.HHZ. 2017-12-11T06:55:43.84 0.3 undecidable manual P 14 29.6481 101 0.06 73
IV.FDMO.HHZ. 2017-12-11T06:55:43.54 0.3 undecidable manual P 333 28.9488 102 -0.13 71
IV.CSP1.EHZ. 2017-12-11T06:55:43.84 0.6 undecidable manual P 354 32.2455 100 -0.32 45
IV.T1299.EHZ. 2017-12-11T06:55:42.23 0.3 undecidable manual P 171 18.9699 113 0.04 75
IV.FEMA.HNZ. 2017-12-11T06:55:42.64 0.1 undecidable manual P 318 23.8539 106 -0.26 93
IV.SMA1.EHZ. 2017-12-11T06:55:42.40 0.1 undecidable manual P 159 20.4684 111 0 99
IV.NRCA.HNZ. 2017-12-11T06:55:41.31 0.1 undecidable manual P 287 11.3775 132 0.11 99
IV.MC2.EHZ. 2017-12-11T06:55:41.50 0.1 undecidable manual P 339 12.876 128 0.11 99
IV.MTRA.HNZ. 2017-12-11T06:55:41.36 0.1 undecidable manual P 113 13.1757 127 -0.06 100
IV.MMO1.EHZ. 2017-12-11T06:55:41.27 0.1 undecidable manual P 31 12.4764 129 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:2.9 0.008185000000000001 0.14 AML other m 2017-12-11T06:55:43.99
IV.NRCA.HNE. ML:2.9 0.00789 1.86 AML other m 2017-12-11T06:55:43.00
IV.NRCA.HHN. ML:2.7 0.005025 0.14 AML other m 2017-12-11T06:55:44.04
IV.NRCA.HNN. ML:2.7 0.00467 0.14 AML other m 2017-12-11T06:55:44.05
IV.MTRA.HNE. ML:2.5 0.0028799999999999997 1.54 AML other m 2017-12-11T06:55:44.99
IV.MTRA.EHE. ML:2.5 0.00281 0.46 AML other m 2017-12-11T06:55:44.00
IV.MTRA.EHN. ML:2.4 0.0020350000000000004 0.3 AML other m 2017-12-11T06:55:44.43
IV.MTRA.HNN. ML:2.4 0.0021000000000000003 0.28 AML other m 2017-12-11T06:55:44.42
IV.SMA1.EHN. ML:2.2 0.0009195 1.72 AML other m 2017-12-11T06:55:45.05
IV.T1299.EHN. ML:2.3 0.00126 1.54 AML other m 2017-12-11T06:55:45.91
IV.T1299.HNN. ML:2.3 0.00126 1.54 AML other m 2017-12-11T06:55:45.91
IV.T1299.HNE. ML:2.2 0.001053 1.58 AML other m 2017-12-11T06:55:45.96
IV.T1299.EHE. ML:2.2 0.0010745 1.58 AML other m 2017-12-11T06:55:45.96
IV.SMA1.EHE. ML:2.2 0.001021 0.66 AML other m 2017-12-11T06:55:46.68
IV.LNSS.HHE. ML:2.3 0.0010505 0.56 AML other m 2017-12-11T06:55:48.61
IV.FDMO.HHN. ML:1.6 0.0002115 0.28 AML other m 2017-12-11T06:55:48.52
IV.MF5.EHE. ML:2.2 0.0008715 0.4 AML other m 2017-12-11T06:55:48.94
IV.MF5.EHN. ML:2.1 0.000743 0.38 AML other m 2017-12-11T06:55:48.96
IV.LNSS.HHN. ML:2.5 0.00141 0.66 AML other m 2017-12-11T06:55:48.57
IV.GUMA.HNN. ML:2.4 0.001073 0.68 AML other m 2017-12-11T06:55:49.21
IV.GUMA.HHN. ML:2.4 0.0012725 0.68 AML other m 2017-12-11T06:55:49.22
IV.FDMO.HHE. ML:1.5 0.000144 0.42 AML other m 2017-12-11T06:55:49.12
IV.RM33.EHE. ML:2.2 0.0006599999999999999 1.68 AML other m 2017-12-11T06:55:50.03
IV.RM33.HNE. ML:2.2 0.0007379999999999999 1.68 AML other m 2017-12-11T06:55:50.03
IV.RM33.HNN. ML:2.3 0.0007585 1 AML other m 2017-12-11T06:55:50.55
IV.RM33.EHN. ML:2.3 0.0007804999999999999 1 AML other m 2017-12-11T06:55:50.55
IV.TERO.HHN. ML:2.2 0.0006374999999999999 0.94 AML other m 2017-12-11T06:55:50.25
IV.TERO.HNN. ML:1.9 0.0003165 0.66 AML other m 2017-12-11T06:55:50.58
IV.TERO.HHE. ML:2.1 0.0004615 0.36 AML other m 2017-12-11T06:55:50.24
IV.GUMA.HNE. ML:2.3 0.0009615 0.48 AML other m 2017-12-11T06:55:50.42
IV.TERO.HNE. ML:2.1 0.0004325 1.34 AML other m 2017-12-11T06:55:50.74
IV.CESI.HHE. ML:1.7 0.00017449999999999999 0.84 AML other m 2017-12-11T06:55:51.09
IV.GUMA.HHE. ML:2.4 0.001185 0.28 AML other m 2017-12-11T06:55:51.33
IV.CESI.HHN. ML:1.9 0.000332 0.46 AML other m 2017-12-11T06:55:51.28
IV.OFFI.HHN. ML:2.4 0.0007985 1.42 AML other m 2017-12-11T06:55:52.80
IV.OFFI.HHE. ML:2.3 0.0006725 0.74 AML other m 2017-12-11T06:55:53.10
IV.ARRO.EHN. ML:1.6 0.00012690000000000002 1.58 AML other m 2017-12-11T06:55:54.86
IV.ARRO.EHE. ML:1.7 0.00014600000000000003 0.54 AML other m 2017-12-11T06:55:55.34
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