Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 31-10-2016 and time 00:14:15 (Italy) in region 6 km W Accumoli (RI)

A magnitude ML 2.5 earthquake occured in region: 6 km W Accumoli (RI), on

  • 30-10-2016 23:14:15 (UTC)
  • 31-10-2016 00:14:15 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7000, 13.1790 at 12 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)
43 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)
88 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 2.5 2016-10-30
23:14:15		 42.6997 13.179 12 2019-02-12
14:03:24		 Bollettino Sismico Italiano INGV 48672841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-30 23:14:15 ± 0.05
Latitude 42.6997 ± 0.0027
Longitude 13.1790 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 48672841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 379
Semi-minor axis of confidence ellipse (meter) 74
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 291
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 41
Number of associated phases, regardless of their use for origin computation 56
Number of defining phases 56
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.06745
Epicentral distance of station farthest from the epicenter (degree) 1.14214
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 36
Magnitude information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 23
Type of magnitude ML
Reference to an origin 48672841
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-08-04 08:53:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIUL.HHZ. 2016-10-30T23:14:37.83 0.6 undecidable manual P 177 126.7731 90 1.22 27
IV.SACS.HHE. 2016-10-30T23:14:34.25 0.6 undecidable manual P 280 104.7174 91 1.04 30
IV.MGAB.HHZ. 2016-10-30T23:14:32.52 0.6 undecidable manual P 286 89.9433 91 1.58 23
IV.GUMA.HHZ. 2016-10-30T23:14:30.11 0.6 undecidable manual S 17 42.2244 92 0.72 39
IV.PP3.EHZ. 2016-10-30T23:14:30.96 0.3 undecidable manual P 25 82.9503 91 1.1 46
IV.T0110.HHZ. 2016-10-30T23:14:28.27 0.3 undecidable manual P 137 71.4729 91 0.18 65
IV.SRES.HHZ. 2016-10-30T23:14:28.90 0.6 undecidable manual P 227 75.0693 91 0.26 43
IV.TERO.HHZ. 2016-10-30T23:14:27.21 0.6 undecidable manual S 104 35.742 92 -0.44 44
XO.AM05.HNZ. 2016-10-30T23:14:27.23 0.6 undecidable manual S 25 33.9438 92 0.06 47
IV.T1256.HHZ. 2016-10-30T23:14:27.37 0.6 undecidable manual S 6 34.2435 92 0.11 47
IV.VCEL.EHZ. 2016-10-30T23:14:27.16 0.3 undecidable manual P 122 63.7917 91 0.25 65
IV.T1247.HHZ. 2016-10-30T23:14:26.35 0.6 undecidable manual S 161 30.2475 93 0.16 47
IV.T1211.EHZ. 2016-10-30T23:14:26.70 0.6 undecidable manual S 235 32.2455 93 -0.03 48
IV.FAGN.HHZ. 2016-10-30T23:14:25.82 0.6 undecidable manual P 145 58.3971 91 -0.26 43
IV.T1215.EHZ. 2016-10-30T23:14:25.10 0.6 undecidable manual S 294 27.75 94 -0.42 44
IV.T1241.EHZ. 2016-10-30T23:14:25.10 0.6 undecidable manual S 50 26.9508 94 -0.2 47
IV.ASSB.HHZ. 2016-10-30T23:14:25.84 0.3 undecidable manual P 312 56.8986 91 0 69
IV.T1246.HHN. 2016-10-30T23:14:25.41 0.6 undecidable manual S 117 28.6491 93 -0.37 45
IV.OFFI.HHE. 2016-10-30T23:14:25.38 0.1 undecidable manual P 57 48.8178 91 0.78 75
IV.MMO1.HNZ. 2016-10-30T23:14:24.51 0.6 undecidable manual S 28 25.2525 94 -0.34 46
IV.FIAM.HHZ. 2016-10-30T23:14:24.46 0.3 undecidable manual P 186 48.1185 91 -0.04 69
IV.CESX.HHZ. 2016-10-30T23:14:24.46 0.3 undecidable manual P 258 49.3173 91 -0.22 67
IV.CAMP.HHZ. 2016-10-30T23:14:24.94 0.3 undecidable manual S 134 26.1516 94 -0.16 70
IV.T1217.HNZ. 2016-10-30T23:14:23.28 0.3 undecidable manual S 274 20.2686 97 -0.25 70
MN.AQU.HHZ. 2016-10-30T23:14:23.82 0.3 undecidable manual P 154 42.5241 92 0.19 69
IV.GIGS.HHZ. 2016-10-30T23:14:23.41 0.3 undecidable manual P 130 42.2244 92 -0.18 68
IV.T1243.HNZ. 2016-10-30T23:14:23.55 0.6 undecidable manual S 91 21.9669 96 -0.44 45
IV.RM33.EHZ. 2016-10-30T23:14:23.75 0.6 undecidable manual S 172 21.3675 96 -0.07 48
IV.GUMA.HHZ. 2016-10-30T23:14:23.78 0.3 undecidable manual P 17 42.2244 92 0.19 68
IV.LNSS.HHZ. 2016-10-30T23:14:22.25 0.6 undecidable manual S 227 15.5733 105 -0.06 48
IV.TERO.HHZ. 2016-10-30T23:14:22.41 0.3 undecidable manual P 104 35.742 92 -0.17 69
XO.AM05.HNZ. 2016-10-30T23:14:22.25 0.1 undecidable manual P 25 33.9438 92 -0.05 95
IV.T1256.HHZ. 2016-10-30T23:14:22.16 0.6 undecidable manual P 6 34.2435 92 -0.2 46
IV.T1245.HHZ. 2016-10-30T23:14:22.40 0.6 undecidable manual S 2 17.4714 101 -0.39 46
IV.ARRO.EHZ. 2016-10-30T23:14:22.51 0.3 undecidable manual P 249 36.2415 92 -0.16 69
IV.SMA1.EHZ. 2016-10-30T23:14:22.08 0.6 undecidable manual S 121 14.874 107 -0.05 49
IV.T1204.EHZ. 2016-10-30T23:14:21.11 0.6 undecidable manual S 103 11.5773 120 -0.2 48
IV.T1211.EHZ. 2016-10-30T23:14:21.94 0.1 undecidable manual P 235 32.2455 93 -0.11 94
IV.CAMP.HHZ. 2016-10-30T23:14:21.06 0.1 negative manual P 134 26.1516 94 -0.04 96
IV.T1215.EHZ. 2016-10-30T23:14:21.08 0.3 undecidable manual P 294 27.75 94 -0.27 69
IV.T1241.EHZ. 2016-10-30T23:14:21.19 0.1 undecidable manual P 50 26.9508 94 -0.04 97
IV.T1246.HHN. 2016-10-30T23:14:21.38 0.3 undecidable manual P 117 28.6491 93 -0.12 71
IV.T1247.HHZ. 2016-10-30T23:14:21.65 0.1 undecidable manual P 161 30.2475 93 -0.09 94
IV.T1299.HNN. 2016-10-30T23:14:21.15 0.6 undecidable manual S 131 11.0778 121 -0.06 49
IV.RM33.EHZ. 2016-10-30T23:14:20.35 0.1 negative manual P 172 21.3675 96 -0.02 97
IV.T1216.EHZ. 2016-10-30T23:14:20.65 0.6 undecidable manual P 328 24.8529 94 -0.26 46
IV.T1217.HNZ. 2016-10-30T23:14:20.07 0.1 positive manual P 274 20.2686 97 -0.13 96
IV.T1201.HNN. 2016-10-30T23:14:20.52 0.6 undecidable manual S 129 7.4814 138 0.05 50
IV.T1243.HNZ. 2016-10-30T23:14:20.24 0.1 undecidable manual P 91 21.9669 96 -0.22 94
IV.MMO1.HNZ. 2016-10-30T23:14:20.72 0.3 undecidable manual P 28 25.2525 94 -0.25 70
IV.T1245.HHZ. 2016-10-30T23:14:19.60 0.1 undecidable manual P 2 17.4714 101 -0.17 96
IV.SMA1.EHZ. 2016-10-30T23:14:19.66 0.1 undecidable manual P 121 14.874 107 0.26 95
IV.LNSS.HHZ. 2016-10-30T23:14:19.54 0.1 positive manual P 227 15.5733 105 0.04 99
IV.T1201.HNN. 2016-10-30T23:14:18.54 0.1 undecidable manual P 129 7.4814 138 0.1 100
IV.T1299.HNN. 2016-10-30T23:14:18.99 0.1 undecidable manual P 131 11.0778 121 0.13 98
IV.T1204.EHZ. 2016-10-30T23:14:18.95 0.1 undecidable manual P 103 11.5773 120 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.AQU.HHE. ML:2.0 0.000355523 0.3072 AML other m 2016-10-30T23:14:32.81
MN.AQU.HLN. ML:2.1 0.00040046159999999995 0.2304 AML other m 2016-10-30T23:14:32.06
MN.AQU.HHN. ML:2.1 0.0003948781 0.2176 AML other m 2016-10-30T23:14:32.06
MN.AQU.HLE. ML:2.0 0.00033441925 0.2816 AML other m 2016-10-30T23:14:32.67
IV.ARRO.EHN. ML:2.0 0.00042134620000000003 0.2816 AML other m 2016-10-30T23:14:31.56
IV.ASSB.HHE. ML:2.7 0.0011175117 0.1664 AML other m 2016-10-30T23:14:50.46
IV.ASSB.HHN. ML:2.5 0.00079192245 0.1792 AML other m 2016-10-30T23:14:50.72
IV.CAMP.HHN. ML:2.3 0.0010580439500000002 0.2944 AML other m 2016-10-30T23:14:25.23
IV.CAMP.HHE. ML:2.3 0.00118389885 0.2304 AML other m 2016-10-30T23:14:25.16
IV.CESX.HHE. ML:2.2 0.00039915605 0.2304 AML other m 2016-10-30T23:14:45.18
IV.CESX.HHN. ML:2.2 0.00044430250000000005 0.3712 AML other m 2016-10-30T23:14:45.13
IV.FAGN.HHE. ML:2.5 0.0006618747499999999 0.2816 AML other m 2016-10-30T23:14:39.30
IV.FAGN.HHN. ML:2.4 0.0005324861000000001 0.32 AML other m 2016-10-30T23:14:39.28
IV.GIGS.HHE. ML:2.1 0.00036377595 0.256 AML other m 2016-10-30T23:14:29.33
IV.GIGS.HHN. ML:1.7 0.0001460404 0.2304 AML other m 2016-10-30T23:14:29.68
IV.GUMA.HHE. ML:3.3 0.006316166 0.32 AML other m 2016-10-30T23:14:30.44
IV.GUMA.HNE. ML:3.1 0.004258064 0.2816 AML other m 2016-10-30T23:14:31.11
IV.GUMA.HNN. ML:3.2 0.0049409455 0.3456 AML other m 2016-10-30T23:14:30.43
IV.GUMA.HHN. ML:3.0 0.0035615595000000003 0.3712 AML other m 2016-10-30T23:14:30.89
IV.LNSS.HHN. ML:2.7 0.004177130500000001 0.1536 AML other m 2016-10-30T23:14:22.60
IV.LNSS.HHE. ML:2.7 0.004296876 0.1792 AML other m 2016-10-30T23:14:22.48
IV.PP3.HNE. ML:2.8 0.0008838955 0.5376 AML other m 2016-10-30T23:14:44.51
IV.PP3.EHE. ML:2.8 0.0009199452999999999 0.5376 AML other m 2016-10-30T23:14:44.51
IV.RM33.EHE. ML:2.4 0.0015477734999999999 0.2176 AML other m 2016-10-30T23:14:24.47
IV.RM33.HNE. ML:2.4 0.001615908 0.2304 AML other m 2016-10-30T23:14:24.46
IV.RM33.EHN. ML:2.6 0.002519406 0.2816 AML other m 2016-10-30T23:14:23.99
IV.RM33.HNN. ML:2.6 0.002514256 0.2944 AML other m 2016-10-30T23:14:23.99
IV.SMA1.EHE. ML:2.6 0.003484782 0.1792 AML other m 2016-10-30T23:14:22.59
IV.SMA1.EHN. ML:2.9 0.007458033 0.4992 AML other m 2016-10-30T23:14:22.55
IV.T0110.HHN. ML:2.5 0.00047283815 0.3072 AML other m 2016-10-30T23:14:44.43
IV.T0110.HHE. ML:2.5 0.0005073544000000001 0.4608 AML other m 2016-10-30T23:14:40.70
IV.T1204.EHE. ML:2.6 0.004072277 0.32 AML other m 2016-10-30T23:14:22.57
IV.T1204.EHN. ML:2.3 0.0023389954999999997 0.32 AML other m 2016-10-30T23:14:22.69
IV.T1211.EHE. ML:2.5 0.0013928786500000002 0.1536 AML other m 2016-10-30T23:14:27.40
IV.T1211.HNE. ML:2.5 0.0013665745000000001 0.1536 AML other m 2016-10-30T23:14:27.40
IV.T1211.HNN. ML:2.6 0.0016713195 0.1408 AML other m 2016-10-30T23:14:27.79
IV.T1211.EHN. ML:2.6 0.0016470331499999998 0.1408 AML other m 2016-10-30T23:14:27.72
IV.T1215.EHE. ML:2.4 0.0012375059999999998 0.1024 AML other m 2016-10-30T23:14:25.18
IV.T1215.EHN. ML:2.3 0.0011412454999999999 0.2688 AML other m 2016-10-30T23:14:25.46
IV.T1215.HNN. ML:2.4 0.0011668016 0.2688 AML other m 2016-10-30T23:14:25.46
IV.T1215.HNE. ML:2.4 0.00117708585 0.1152 AML other m 2016-10-30T23:14:25.23
IV.T1216.EHE. ML:2.5 0.00184590935 0.2304 AML other m 2016-10-30T23:14:27.10
IV.T1216.EHN. ML:2.6 0.0021851335 0.1792 AML other m 2016-10-30T23:14:26.01
IV.T1217.EHN. ML:3.0 0.0071865325 0.2176 AML other m 2016-10-30T23:14:23.50
IV.T1217.HNE. ML:2.7 0.0032947505 0.192 AML other m 2016-10-30T23:14:23.40
IV.T1217.HNN. ML:3.0 0.007342064 0.2176 AML other m 2016-10-30T23:14:23.39
IV.T1217.EHE. ML:2.7 0.003294017 0.1792 AML other m 2016-10-30T23:14:23.50
IV.T1241.EHN. ML:2.1 0.0006374894 0.2688 AML other m 2016-10-30T23:14:28.31
IV.T1241.EHE. ML:2.3 0.0010145735000000001 0.4224 AML other m 2016-10-30T23:14:29.52
IV.T1241.HNE. ML:2.2 0.0009328499999999878 0.4096 AML other m 2016-10-30T23:14:29.30
IV.T1245.HNE. ML:3.0 0.0070530589999999995 0.256 AML other m 2016-10-30T23:14:22.83
IV.T1245.HNN. ML:3.0 0.007220667499999999 0.4864 AML other m 2016-10-30T23:14:24.75
IV.T1245.HHE. ML:2.9 0.0066417575 0.2688 AML other m 2016-10-30T23:14:22.82
IV.T1245.HHN. ML:2.9 0.006547654 0.4992 AML other m 2016-10-30T23:14:24.76
IV.T1247.HHN. ML:2.6 0.0021474325 0.32 AML other m 2016-10-30T23:14:28.14
IV.T1247.HHE. ML:2.4 0.001112172 0.3072 AML other m 2016-10-30T23:14:28.91
IV.TERO.HHE. ML:2.5 0.00120618 0.256 AML other m 2016-10-30T23:14:28.05
IV.TERO.HNN. ML:2.6 0.001512555 0.32 AML other m 2016-10-30T23:14:28.15
IV.TERO.HNE. ML:2.4 0.0011051146000000001 0.2688 AML other m 2016-10-30T23:14:28.06
IV.TERO.HHN. ML:2.6 0.0016127449999999998 0.32 AML other m 2016-10-30T23:14:28.15
IV.VCEL.EHN. ML:2.5 0.0005821902 0.3328 AML other m 2016-10-30T23:14:39.33
IV.VCEL.EHE. ML:2.6 0.0007669253 0.384 AML other m 2016-10-30T23:14:38.41
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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