Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 31-10-2016 and time 23:33:12 (Italy) in region 5 km E Preci (PG)

A magnitude ML 2.0 earthquake occured in region: 5 km E Preci (PG), on

  • 31-10-2016 22:33:12 (UTC)
  • 31-10-2016 23:33:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8620, 13.1010 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
Preci PG 5 724 724
Castelsantangelo sul Nera MC 6 281 1005
Norcia PG 8 4957 5962
Visso MC 8 1107 7069
Ussita MC 10 444 7513
Sellano PG 14 1079 8592
Cerreto di Spoleto PG 16 1075 9667
Monte Cavallo MC 17 145 9812
Cascia PG 17 3217 13029
Bolognola MC 18 142 13171
Arquata del Tronto AP 19 1178 14349
Montemonaco AP 19 604 14953
Montegallo AP 19 523 15476
Fiordimonte MC 20 202 15678
Acquacanina MC 20 121 15799
Fiastra MC 20 559 16358

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
54 Km W of Teramo (54892 inhabitants)
62 Km NW of L'Aquila (69753 inhabitants)
64 Km E of Perugia (166134 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
95 Km NE 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 2016-10-31
22:33:12		 42.8623 13.1012 10 2019-02-12
14:03:41		 Bollettino Sismico Italiano INGV 55700521
Reviewed
Rev100 		ML 2.1 2016-10-31
22:33:12		 42.8637 13.1012 10 2016-10-31
22:46:34		 Sala Sismica INGV-Roma 31342941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-31 22:33:12 ± 0.04
Latitude 42.8623 ± 0.0027
Longitude 13.1012 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 55700521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 285
Semi-minor axis of confidence ellipse (meter) 164
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) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 31
Number of associated phases, regardless of their use for origin computation 67
Number of defining phases 67
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) 0.03058
Epicentral distance of station farthest from the epicenter (degree) 0.78960
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 37
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 53
Type of magnitude ML
Reference to an origin 55700521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-04-16 14:50:09

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 31342941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-31 22:46:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2016-10-31T22:33:35.69 0.6 undecidable manual S 350 71.6727 50 0.88 35
IV.MURB.HHZ. 2016-10-31T22:33:34.06 0.6 undecidable manual S 314 64.491 50 1.17 31
IV.FOSV.EHZ. 2016-10-31T22:33:30.66 0.6 undecidable manual S 330 55.3002 50 0.21 45
IV.ATCC.EHZ. 2016-10-31T22:33:29.80 0.6 undecidable manual S 314 51.8037 50 0.3 44
IV.EL6.EHZ. 2016-10-31T22:33:29.74 0.6 undecidable manual S 0 51.8037 50 0.24 45
IV.PIEI.HHZ. 2016-10-31T22:33:28.37 0.3 undecidable manual P 329 87.6456 50 0.37 61
IV.TERO.HHZ. 2016-10-31T22:33:28.53 0.6 undecidable manual S 123 48.8178 50 -0.18 46
IV.ATPI.EHZ. 2016-10-31T22:33:28.01 0.3 undecidable manual P 319 86.3469 50 0.2 64
IV.MGAB.HHZ. 2016-10-31T22:33:27.30 0.3 undecidable manual P 274 80.5638 50 0.38 62
IV.SNTG.HHZ. 2016-10-31T22:33:27.83 0.6 undecidable manual S 343 45.4212 50 0.02 48
IV.ASSB.HHZ. 2016-10-31T22:33:26.35 0.6 undecidable manual S 299 41.1255 50 -0.3 45
IV.ATVO.HHZ. 2016-10-31T22:33:26.81 0.3 undecidable manual P 316 80.5638 50 -0.1 66
IV.ATFO.HHZ. 2016-10-31T22:33:25.26 0.6 undecidable manual P 323 70.4739 50 -0.1 45
IV.MDAR.HNZ. 2016-10-31T22:33:25.11 0.3 undecidable manual S 5 36.8298 50 -0.39 67
IV.TRTR.HHZ. 2016-10-31T22:33:25.89 0.1 undecidable manual P 95 66.378 50 1.16 62
IV.FIU1.HNZ. 2016-10-31T22:33:25.78 0.3 undecidable manual S 339 38.7279 50 -0.23 69
IV.ARVD.HHZ. 2016-10-31T22:33:25.36 0.3 undecidable manual P 350 71.6727 50 -0.19 66
IV.T1243.HHZ. 2016-10-31T22:33:24.20 0.6 undecidable manual S 123 33.744 50 -0.48 44
IV.SMA1.EHZ. 2016-10-31T22:33:24.00 0.6 undecidable manual S 143 32.0457 50 -0.22 47
IV.MURB.HHZ. 2016-10-31T22:33:24.39 0.3 undecidable manual P 314 64.491 50 -0.04 69
IV.LNSS.HHZ. 2016-10-31T22:33:23.12 0.3 undecidable manual S 190 29.2485 50 -0.36 69
IV.GUMA.HHE. 2016-10-31T22:33:23.59 0.6 undecidable manual S 40 29.2485 50 0.11 48
IV.T1299.HNE. 2016-10-31T22:33:23.66 0.6 undecidable manual S 150 29.2485 50 0.16 48
IV.OFFI.HHZ. 2016-10-31T22:33:22.75 0.1 undecidable manual P 80 48.2184 50 0.83 75
IV.T1201.HNE. 2016-10-31T22:33:22.84 0.6 undecidable manual S 152 25.8519 110 0.41 45
IV.FOSV.EHZ. 2016-10-31T22:33:22.89 0.3 undecidable manual P 330 55.3002 50 -0.13 69
IV.ATCC.EHZ. 2016-10-31T22:33:22.34 0.1 undecidable manual P 314 51.8037 50 -0.13 92
IV.T1241.HNZ. 2016-10-31T22:33:22.45 0.6 undecidable manual S 91 26.8509 110 -0.31 46
IV.EL6.EHZ. 2016-10-31T22:33:22.31 0.3 undecidable manual P 0 51.8037 50 -0.17 69
IV.T1204.EHZ. 2016-10-31T22:33:22.83 0.6 undecidable manual S 140 27.1506 109 -0.03 49
IV.TERO.HHZ. 2016-10-31T22:33:21.77 0.3 undecidable manual P 123 48.8178 50 -0.25 68
XO.AM05.EHZ. 2016-10-31T22:33:21.51 0.6 undecidable manual S 58 24.0537 112 -0.37 46
IV.SNTG.HHZ. 2016-10-31T22:33:21.40 0.3 undecidable manual P 343 45.4212 50 -0.1 70
IV.T1244.EHZ. 2016-10-31T22:33:20.83 0.6 undecidable manual S 126 19.869 116 0.31 47
IV.T1217.EHZ. 2016-10-31T22:33:20.96 0.6 undecidable manual S 220 21.6672 114 -0.14 48
IV.FIU1.HNZ. 2016-10-31T22:33:20.33 0.3 undecidable manual P 339 38.7279 50 -0.13 71
IV.T1256.HHZ. 2016-10-31T22:33:20.07 0.6 undecidable manual S 32 18.87 117 -0.17 48
IV.MMO1.HNZ. 2016-10-31T22:33:20.06 0.6 undecidable manual S 77 18.7701 117 -0.14 49
IV.ASSB.HHZ. 2016-10-31T22:33:20.49 0.1 undecidable manual P 299 41.1255 50 -0.34 90
IV.FDMO.HHZ. 2016-10-31T22:33:20.15 0.6 undecidable manual S 357 19.3695 116 -0.22 48
IV.T1221.HNE. 2016-10-31T22:33:20.70 0.6 undecidable manual S 269 20.6682 115 -0.08 49
IV.T1215.EHZ. 2016-10-31T22:33:20.40 0.6 undecidable manual S 251 20.0688 115 -0.2 48
IV.MDAR.HNZ. 2016-10-31T22:33:19.94 0.3 undecidable manual P 5 36.8298 50 -0.23 70
IV.T1299.HNE. 2016-10-31T22:33:19.01 0.3 undecidable manual P 150 29.2485 50 0 74
IV.T1243.HHZ. 2016-10-31T22:33:19.34 0.3 undecidable manual P 123 33.744 50 -0.35 68
IV.SMA1.EHZ. 2016-10-31T22:33:19.36 0.3 undecidable manual P 143 32.0457 50 -0.07 72
IV.T1241.HNZ. 2016-10-31T22:33:18.36 0.1 undecidable manual P 91 26.8509 110 -0.23 94
IV.GUMA.HHE. 2016-10-31T22:33:18.99 0.1 undecidable manual P 40 29.2485 50 -0.01 98
IV.FEMA.HNZ. 2016-10-31T22:33:18.10 0.6 undecidable manual S 339 11.7771 129 -0.06 50
IV.T1204.EHZ. 2016-10-31T22:33:18.50 0.3 undecidable manual P 140 27.1506 109 -0.14 72
IV.T1201.HNE. 2016-10-31T22:33:18.59 0.3 undecidable manual P 152 25.8519 110 0.2 71
IV.LNSS.HHZ. 2016-10-31T22:33:18.88 0.3 undecidable manual P 190 29.2485 50 -0.12 72
IV.FDMO.HHZ. 2016-10-31T22:33:17.15 0.1 undecidable manual P 357 19.3695 116 -0.06 99
IV.T1221.HNE. 2016-10-31T22:33:17.51 0.1 undecidable manual P 269 20.6682 115 0.06 99
IV.T1215.EHZ. 2016-10-31T22:33:17.37 0.1 positive manual P 251 20.0688 115 0.03 99
IV.T1244.EHZ. 2016-10-31T22:33:17.40 0.1 undecidable manual P 126 19.869 116 0.11 98
IV.T1217.EHZ. 2016-10-31T22:33:17.61 0.1 undecidable manual P 220 21.6672 114 -0.02 99
IV.T1256.HHZ. 2016-10-31T22:33:17.03 0.3 undecidable manual P 32 18.87 117 -0.1 74
IV.MMO1.HNZ. 2016-10-31T22:33:17.09 0.1 positive manual P 77 18.7701 117 -0.01 100
XO.AM05.EHZ. 2016-10-31T22:33:17.99 0.1 undecidable manual P 58 24.0537 112 -0.08 98
IV.T1245.HNZ. 2016-10-31T22:33:17.10 0.6 undecidable manual S 95 7.0929 143 0.09 50
IV.FEMA.HNZ. 2016-10-31T22:33:16.06 0.1 undecidable manual P 339 11.7771 129 0.13 99
IV.NRCA.HHZ. 2016-10-31T22:33:16.33 0.6 undecidable manual S 162 3.3966 161 -0.07 51
IV.T1216.EHZ. 2016-10-31T22:33:16.95 0.6 undecidable manual S 295 7.3815 142 -0.12 50
IV.T1216.EHZ. 2016-10-31T22:33:15.43 0.1 undecidable manual P 295 7.3815 142 0.13 100
IV.T1245.HNZ. 2016-10-31T22:33:15.55 0.1 undecidable manual P 95 7.0929 143 0.28 97
IV.NRCA.HHZ. 2016-10-31T22:33:15.08 0.1 undecidable manual P 162 3.3966 161 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.EHN. ML:0.0 0.00018156050000000002 0.3584 AML other m 2016-10-31T22:33:33.00
IV.FOSV.EHE. ML:0.0 0.00011886104999999999 0.1792 AML other m 2016-10-31T22:33:32.08
IV.T1216.EHN. ML:2.8 0.009460976500000001 0.0768 AML other m 2016-10-31T22:33:17.19
IV.T1216.EHE. ML:2.6 0.0057628655 0.0896 AML other m 2016-10-31T22:33:17.13
IV.FEMA.HNE. ML:2.7 0.0055864905 0.0768 AML other m 2016-10-31T22:33:18.64
IV.FEMA.HNN. ML:2.4 0.003332668 0.0896 AML other m 2016-10-31T22:33:18.34
IV.FDMO.HHE. ML:1.9 0.0006269774 0.1408 AML other m 2016-10-31T22:33:21.91
IV.FDMO.HHN. ML:2.1 0.0009499763500000001 0.0896 AML other m 2016-10-31T22:33:21.38
IV.T1215.EHN. ML:1.8 0.0005343050499999999 0.1536 AML other m 2016-10-31T22:33:21.01
IV.T1215.HNE. ML:1.7 0.00039563660499999996 0.192 AML other m 2016-10-31T22:33:21.27
IV.T1215.EHE. ML:1.7 0.00040599843999999995 0.0896 AML other m 2016-10-31T22:33:20.79
IV.T1215.HNN. ML:1.8 0.0005434016000000001 0.1536 AML other m 2016-10-31T22:33:21.01
IV.T1217.HNN. ML:2.0 0.00067078175 0.3968 AML other m 2016-10-31T22:33:23.67
IV.T1217.EHE. ML:1.8 0.00047528689999999993 0.1792 AML other m 2016-10-31T22:33:21.40
IV.T1217.HNE. ML:1.8 0.00048513545000000003 0.4352 AML other m 2016-10-31T22:33:23.17
IV.T1217.EHN. ML:2.0 0.0006634954550000001 0.256 AML other m 2016-10-31T22:33:22.81
XO.AM05.EHN. ML:1.7 0.0003002491 0.0768 AML other m 2016-10-31T22:33:22.16
XO.AM05.EHE. ML:2.6 0.0025649745 0.0768 AML other m 2016-10-31T22:33:22.50
XO.AM05.HNE. ML:2.0 0.0005865912 0.0768 AML other m 2016-10-31T22:33:21.89
XO.AM05.HNN. ML:2.1 0.0007369111500000001 0.1152 AML other m 2016-10-31T22:33:22.62
IV.T1241.EHE. ML:2.0 0.00064360325 0.1408 AML other m 2016-10-31T22:33:22.84
IV.T1241.EHN. ML:2.0 0.00057302535 0.2176 AML other m 2016-10-31T22:33:23.47
IV.T1241.HNE. ML:2.0 0.0006179379 0.1408 AML other m 2016-10-31T22:33:22.77
IV.T1241.HNN. ML:2.0 0.0005927801 0.2176 AML other m 2016-10-31T22:33:23.58
IV.T1204.EHE. ML:2.1 0.000648319 0.2304 AML other m 2016-10-31T22:33:25.41
IV.T1204.EHN. ML:1.9 0.0004060284999999999 0.1792 AML other m 2016-10-31T22:33:23.72
IV.SMA1.EHE. ML:1.9 0.00035379490000000003 0.32 AML other m 2016-10-31T22:33:29.84
IV.SMA1.EHN. ML:2.0 0.00042673289999999996 0.2944 AML other m 2016-10-31T22:33:25.82
IV.SEF1.HNN. ML:2.3 0.0008304770500000001 0.4736 AML other m 2016-10-31T22:33:25.32
IV.ASSB.HHN. ML:2.1 0.000451198 0.1792 AML other m 2016-10-31T22:33:28.19
IV.ASSB.HHE. ML:2.2 0.0005631332 0.2176 AML other m 2016-10-31T22:33:28.23
IV.SNTG.HNE. ML:1.8 0.00018651945 0.1024 AML other m 2016-10-31T22:33:28.50
IV.SNTG.HHE. ML:1.8 0.00020030835 0.1024 AML other m 2016-10-31T22:33:28.49
IV.SNTG.HHN. ML:1.6 0.00011495946 0.2432 AML other m 2016-10-31T22:33:35.48
IV.TERO.HNN. ML:2.0 0.00029599600000000003 0.1536 AML other m 2016-10-31T22:33:28.81
IV.TERO.HHN. ML:2.1 0.0003200426 0.1408 AML other m 2016-10-31T22:33:28.81
IV.TERO.HHE. ML:2.0 0.0002669633 0.1024 AML other m 2016-10-31T22:33:29.53
IV.TERO.HNE. ML:1.9 0.000227855475 0.128 AML other m 2016-10-31T22:33:29.59
IV.ATCC.EHN. ML:2.0 0.00025079283 0.128 AML other m 2016-10-31T22:33:31.08
IV.ATCC.EHE. ML:2.0 0.00026101790000000003 0.2048 AML other m 2016-10-31T22:33:31.28
IV.MURB.HHE. ML:2.3 0.0003582293 0.256 AML other m 2016-10-31T22:33:38.59
IV.MURB.HNN. ML:2.3 0.00037179575 0.2688 AML other m 2016-10-31T22:33:36.03
IV.MURB.HHN. ML:2.2 0.00033336849999999996 0.2048 AML other m 2016-10-31T22:33:35.85
IV.MURB.HNE. ML:2.3 0.0004081496999999999 0.2176 AML other m 2016-10-31T22:33:34.63
IV.ATFO.HHN. ML:1.7 0.000076987095 0.3584 AML other m 2016-10-31T22:33:41.69
IV.ATFO.HHE. ML:1.6 0.00007095480500000001 0.1664 AML other m 2016-10-31T22:33:38.18
IV.ARVD.HHN. ML:1.7 0.000081738795 0.1408 AML other m 2016-10-31T22:33:36.36
IV.MGAB.HHN. ML:1.9 0.0001133667 0.256 AML other m 2016-10-31T22:33:41.77
IV.MGAB.HHE. ML:1.9 0.000102029345 0.3968 AML other m 2016-10-31T22:33:43.35
IV.MGAB.HNE. ML:1.8 0.000095553565 0.6016 AML other m 2016-10-31T22:33:45.61
IV.MGAB.HNN. ML:1.9 0.00011621909499999999 0.32 AML other m 2016-10-31T22:33:43.44
IV.SRES.HHE. ML:1.5 0.00004102737 0.4992 AML other m 2016-10-31T22:33:42.27
IV.SRES.HHN. ML:1.7 0.00006015823 0.3328 AML other m 2016-10-31T22:33:44.67
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