Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 12-08-2017 and time 20:15:51 (UTC) in region 6 km W Accumoli (RI)

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

  • 12-08-2017 20:15:51 (UTC)
  • 12-08-2017 22:15:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6990, 13.1760 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
Accumoli RI 6 667 667
Cittareale RI 9 482 1149
Amatrice RI 12 2657 3806
Norcia PG 13 4957 8763
Arquata del Tronto AP 13 1178 9941
Cascia PG 14 3217 13158
Monteleone di Spoleto PG 19 599 13757
Poggiodomo PG 20 117 13874

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km NW of L'Aquila (69753 inhabitants)
44 Km W of Teramo (54892 inhabitants)
46 Km E of Terni (111501 inhabitants)
48 Km SE of Foligno (57155 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
86 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
89 Km W of Pescara (121014 inhabitants)
90 Km W of Chieti (51815 inhabitants)
93 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 2017-08-12
20:15:51		 42.6987 13.1763 11 2019-03-25
14:06:49		 Bollettino Sismico Italiano INGV 63028361
Reviewed
Rev100 		ML 2.0 2017-08-12
20:15:51		 42.697 13.1808 11 2017-08-12
20:32:03		 Sala Sismica INGV-Roma 48968401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-08-12 20:15:51 ± 0.03
Latitude 42.6987 ± 0.0009
Longitude 13.1763 ± 0.0012
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 63028361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 900
Semi-minor axis of confidence ellipse (meter) 160
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 338
Circular confidence region, given by single value of horizontal uncertainty (meter) 160.0
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 55
Number of defining phases 55
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.04587
Epicentral distance of station farthest from the epicenter (degree) 0.95868
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 63028361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-11-13 16:26:23

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 48968401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-08-12 20:32:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2017-08-12T20:16:11.58 0.6 undecidable manual S 343 64.5909 90 0.7 38
IV.PIEI.HHZ. 2017-08-12T20:16:09.19 0.6 undecidable manual P 331 106.4157 90 0.22 40
IV.CESX.HHZ. 2017-08-12T20:16:07.35 0.6 undecidable manual S 258 49.1175 90 0.62 40
IV.MGAB.HHZ. 2017-08-12T20:16:07.04 0.6 undecidable manual P 286 89.8434 90 0.61 37
IV.CSP1.EHZ. 2017-08-12T20:16:05.50 0.3 undecidable manual S 3 43.7229 90 0.22 68
IV.CESI.HHZ. 2017-08-12T20:16:04.52 0.3 undecidable manual S 327 40.5261 90 0.08 70
IV.CING.HHZ. 2017-08-12T20:16:04.19 0.3 undecidable manual P 1 75.0693 90 0.02 67
IV.GIGS.HHZ. 2017-08-12T20:16:04.65 0.3 undecidable manual S 130 42.3243 90 -0.27 67
IV.ARRO.EHZ. 2017-08-12T20:16:03.07 0.3 undecidable manual S 249 36.0417 90 -0.17 70
IV.EL6.EHZ. 2017-08-12T20:16:03.45 0.1 undecidable manual P 355 70.2741 90 0.05 90
XO.AM05.HNZ. 2017-08-12T20:16:03.10 0.6 undecidable manual S 25 34.1436 90 0.38 45
IV.FDMO.HHZ. 2017-08-12T20:16:03.85 0.3 undecidable manual S 349 38.1285 90 0.04 71
IV.ATCC.EHZ. 2017-08-12T20:16:03.40 0.1 undecidable manual P 321 69.375 90 0.12 88
IV.T1256.HHZ. 2017-08-12T20:16:02.85 0.3 undecidable manual S 7 34.3434 90 0.05 72
IV.T1211.HNN. 2017-08-12T20:16:02.41 0.3 undecidable manual S 235 32.0457 90 0.24 69
IV.SNTG.HHZ. 2017-08-12T20:16:02.61 0.1 undecidable manual P 343 64.5909 90 0.07 90
IV.T1221.EHZ. 2017-08-12T20:16:02.22 0.3 undecidable manual S 304 32.2455 90 -0.02 72
IV.FEMA.HNN. 2017-08-12T20:16:01.90 0.3 undecidable manual S 341 30.9468 90 0 73
IV.T1247.HHZ. 2017-08-12T20:16:01.72 0.3 undecidable manual S 161 30.2475 90 0.04 72
IV.MMO1.EHZ. 2017-08-12T20:16:00.32 0.3 undecidable manual S 29 25.4523 90 -0.09 72
IV.OFFI.HHZ. 2017-08-12T20:16:00.94 0.1 undecidable manual P 58 49.0176 90 0.8 76
IV.T1216.EHZ. 2017-08-12T20:16:00.14 0.3 undecidable manual S 329 24.8529 90 -0.12 72
IV.GUMA.HHZ. 2017-08-12T20:15:59.32 0.1 undecidable manual P 18 42.4242 90 0.2 91
IV.RM33.EHE. 2017-08-12T20:15:59.21 0.3 undecidable manual S 172 21.2676 90 -0.09 73
IV.MC2.EHZ. 2017-08-12T20:15:59.79 0.3 undecidable manual S 2 23.6541 90 -0.14 71
IV.CESX.HHZ. 2017-08-12T20:15:59.92 0.1 undecidable manual P 258 49.1175 90 -0.23 90
IV.CSP1.EHZ. 2017-08-12T20:15:59.23 0.1 undecidable manual P 3 43.7229 90 -0.09 93
IV.MTRA.EHZ. 2017-08-12T20:15:58.34 0.3 undecidable manual S 70 19.0698 90 -0.37 68
IV.FDMO.HHZ. 2017-08-12T20:15:58.37 0.1 undecidable manual P 349 38.1285 90 -0.1 94
IV.CESI.HHZ. 2017-08-12T20:15:58.71 0.1 undecidable manual P 327 40.5261 90 -0.12 93
IV.GIGS.HHZ. 2017-08-12T20:15:58.84 0.1 undecidable manual P 130 42.3243 90 -0.26 90
IV.T1245.HHZ. 2017-08-12T20:15:58.12 0.3 undecidable manual S 3 17.5713 90 -0.19 71
XO.AM05.HNZ. 2017-08-12T20:15:57.93 0.1 undecidable manual P 25 34.1436 90 0.09 95
IV.T1221.EHZ. 2017-08-12T20:15:57.46 0.1 undecidable manual P 304 32.2455 90 -0.1 95
IV.SMA1.EHE. 2017-08-12T20:15:57.63 0.3 undecidable manual S 120 14.9739 90 0.01 75
IV.FEMA.HNN. 2017-08-12T20:15:57.53 0.3 undecidable manual P 341 30.9468 90 0.17 70
IV.LNSS.HHZ. 2017-08-12T20:15:57.68 0.3 undecidable manual S 226 15.3735 90 -0.04 75
IV.T1247.HHZ. 2017-08-12T20:15:57.07 0.1 undecidable manual P 161 30.2475 90 -0.17 94
IV.T1256.HHZ. 2017-08-12T20:15:57.76 0.1 undecidable manual P 7 34.3434 90 -0.12 94
IV.T1211.HNN. 2017-08-12T20:15:57.29 0.1 undecidable manual P 235 32.0457 90 -0.23 93
IV.ARRO.EHZ. 2017-08-12T20:15:57.98 0.1 undecidable manual P 249 36.0417 90 -0.16 93
IV.MC2.EHZ. 2017-08-12T20:15:56.27 0.1 undecidable manual P 2 23.6541 90 0.05 97
IV.MMO1.EHZ. 2017-08-12T20:15:56.41 0.1 undecidable manual P 29 25.4523 90 -0.09 96
IV.T1216.EHZ. 2017-08-12T20:15:56.25 0.1 undecidable manual P 329 24.8529 90 -0.16 95
IV.T1214.HNZ. 2017-08-12T20:15:55.71 0.3 undecidable manual S 21 7.2927 135 -0.05 75
IV.T1245.HHZ. 2017-08-12T20:15:55.27 0.1 undecidable manual P 3 17.5713 90 -0.01 99
IV.MTRA.EHZ. 2017-08-12T20:15:55.40 0.1 undecidable manual P 70 19.0698 90 -0.12 96
IV.T1213.EHZ. 2017-08-12T20:15:55.21 0.3 undecidable manual S 305 5.0949 147 -0.18 73
IV.SMA1.EHE. 2017-08-12T20:15:55.01 0.1 undecidable manual P 120 14.9739 90 0.11 98
IV.RM33.EHE. 2017-08-12T20:15:55.78 0.1 undecidable manual P 172 21.2676 90 -0.08 97
IV.T1218.HNZ. 2017-08-12T20:15:55.44 0.3 undecidable manual S 238 5.8941 142 -0.09 75
IV.LNSS.HHZ. 2017-08-12T20:15:55.02 0.1 undecidable manual P 226 15.3735 90 0.07 98
IV.T1218.HNZ. 2017-08-12T20:15:53.83 0.1 undecidable manual P 238 5.8941 142 0.15 98
IV.T1214.HNZ. 2017-08-12T20:15:53.97 0.1 undecidable manual P 21 7.2927 135 0.15 98
IV.T1213.EHZ. 2017-08-12T20:15:53.67 0.1 undecidable manual P 305 5.0949 147 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1213.EHN. ML:2.6 0.00598 0.18 AML other m 2017-08-12T20:15:55.36
IV.T1213.HNE. ML:2.6 0.006175000000000001 0.46 AML other m 2017-08-12T20:15:55.36
IV.T1218.EHE. ML:2.6 0.006265000000000001 0.12 AML other m 2017-08-12T20:15:55.53
IV.T1218.HNE. ML:2.6 0.0067350000000000005 0.12 AML other m 2017-08-12T20:15:55.53
IV.T1218.EHN. ML:2.9 0.011699999999999999 0.24 AML other m 2017-08-12T20:15:55.73
IV.T1218.HNN. ML:2.9 0.0116 0.24 AML other m 2017-08-12T20:15:55.73
IV.T1213.HNN. ML:2.5 0.0044800000000000005 0.62 AML other m 2017-08-12T20:15:55.78
IV.T1214.EHN. ML:2.3 0.00253 0.16 AML other m 2017-08-12T20:15:55.81
IV.T1214.HNN. ML:2.3 0.0025800000000000003 0.18 AML other m 2017-08-12T20:15:55.80
IV.T1213.EHE. ML:2.5 0.004455 0.18 AML other m 2017-08-12T20:15:55.90
IV.T1214.EHE. ML:2.3 0.0026849999999999995 0.4 AML other m 2017-08-12T20:15:56.48
IV.T1214.HNE. ML:2.3 0.0029050000000000005 0.4 AML other m 2017-08-12T20:15:56.48
IV.MTRA.EHN. ML:2.3 0.0016400000000000002 0.92 AML other m 2017-08-12T20:15:58.18
IV.MTRA.HNE. ML:2.5 0.0023650000000000003 0.94 AML other m 2017-08-12T20:15:58.28
IV.MTRA.EHE. ML:2.5 0.00231 0.34 AML other m 2017-08-12T20:15:59.28
IV.MTRA.HNN. ML:2.3 0.00158 0.2 AML other m 2017-08-12T20:15:59.18
IV.RM33.EHN. ML:1.9 0.0005380000000000001 0.24 AML other m 2017-08-12T20:15:59.46
IV.RM33.HNN. ML:1.9 0.0005405 0.24 AML other m 2017-08-12T20:15:59.46
IV.RM33.HNE. ML:1.9 0.00058 1.78 AML other m 2017-08-12T20:15:59.98
IV.RM33.EHE. ML:1.9 0.0005625 1.8 AML other m 2017-08-12T20:15:59.99
IV.T1216.EHN. ML:2.1 0.0007424999999999999 0.44 AML other m 2017-08-12T20:16:00.67
IV.T1216.EHE. ML:2.0 0.0006065 1.4 AML other m 2017-08-12T20:16:01.78
IV.T1247.HHE. ML:2.0 0.00046699999999999997 0.38 AML other m 2017-08-12T20:16:02.10
IV.T1211.HNE. ML:1.9 0.00038649999999999996 0.1 AML other m 2017-08-12T20:16:03.31
IV.T1211.EHE. ML:1.9 0.00038549999999999994 0.1 AML other m 2017-08-12T20:16:03.31
IV.T1211.HNN. ML:2.0 0.0005164999999999999 1.32 AML other m 2017-08-12T20:16:04.30
IV.FDMO.HHN. ML:1.8 0.0002385 0.26 AML other m 2017-08-12T20:16:04.59
IV.ARRO.EHE. ML:1.8 0.0002615 0.16 AML other m 2017-08-12T20:16:04.67
IV.CESI.HHN. ML:2.0 0.0003015 1.6 AML other m 2017-08-12T20:16:04.86
IV.T1256.HHE. ML:2.0 0.00036199999999999996 0.76 AML other m 2017-08-12T20:16:04.98
IV.FDMO.HHE. ML:1.8 0.00020800000000000001 1.3 AML other m 2017-08-12T20:16:05.86
IV.T1247.HHN. ML:1.9 0.000376 0.3 AML other m 2017-08-12T20:16:05.10
IV.T1211.EHN. ML:2.0 0.0005245 0.86 AML other m 2017-08-12T20:16:05.96
IV.CSP1.EHN. ML:1.4 0.00007384999999999999 0.8 AML other m 2017-08-12T20:16:05.39
IV.CESI.HHE. ML:1.8 0.0002205 0.76 AML other m 2017-08-12T20:16:05.86
IV.T1256.HHN. ML:1.8 0.00026700000000000004 0.76 AML other m 2017-08-12T20:16:05.49
IV.ARRO.EHN. ML:1.8 0.0002165 0.24 AML other m 2017-08-12T20:16:05.91
IV.GUMA.HHE. ML:2.6 0.001335 0.28 AML other m 2017-08-12T20:16:06.36
IV.CSP1.EHE. ML:1.7 0.00017199999999999998 0.42 AML other m 2017-08-12T20:16:06.67
IV.GUMA.HHN. ML:2.6 0.00125 0.42 AML other m 2017-08-12T20:16:06.47
IV.CESX.HHE. ML:1.7 0.0001245 0.36 AML other m 2017-08-12T20:16:09.07
IV.OFFI.HHN. ML:2.2 0.000379 0.26 AML other m 2017-08-12T20:16:09.78
IV.CESX.HHN. ML:1.8 0.000157 0.46 AML other m 2017-08-12T20:16:10.50
IV.OFFI.HHE. ML:2.1 0.000315 0.42 AML other m 2017-08-12T20:16:11.44
IV.SNTG.HHE. ML:1.5 0.0000594 0.56 AML other m 2017-08-12T20:16:12.97
IV.SNTG.HHN. ML:1.6 0.00006465 0.44 AML other m 2017-08-12T20:16:14.39
IV.EL6.EHE. ML:2.0 0.0001625 0.38 AML other m 2017-08-12T20:16:15.79
IV.EL6.EHN. ML:2.0 0.00016249999999999997 1.48 AML other m 2017-08-12T20:16:16.81
IV.ATCC.EHN. ML:1.6 0.0000712 0.24 AML other m 2017-08-12T20:16:16.94
IV.CING.HHE. ML:1.8 0.000091 0.64 AML other m 2017-08-12T20:16:17.26
IV.CING.HHN. ML:1.7 0.00007915 1.42 AML other m 2017-08-12T20:16:17.28
IV.MGAB.HHN. ML:1.8 0.00008185000000000001 0.32 AML other m 2017-08-12T20:16:24.19
IV.MGAB.HHE. ML:1.8 0.00007445000000000001 1.26 AML other m 2017-08-12T20:16:25.12
IV.ATCC.EHE. ML:1.7 0.00008730000000000001 0.42 AML other m 2017-08-12T20:16:25.85
IV.PIEI.HHN. ML:1.6 0.00003565 0.42 AML other m 2017-08-12T20:16:32.72
IV.PIEI.HHE. ML:1.5 0.00002965 0.42 AML other m 2017-08-12T20:16:34.28
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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