Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 31-10-2016 and time 15:49:56 (Italy) in region 5 km W Norcia (PG)

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

  • 31-10-2016 14:49:56 (UTC)
  • 31-10-2016 15:49:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8100, 13.0400 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
Norcia PG 5 4957 4957
Preci PG 8 724 5681
Cerreto di Spoleto PG 10 1075 6756
Cascia PG 10 3217 9973
Sellano PG 13 1079 11052
Castelsantangelo sul Nera MC 13 281 11333
Poggiodomo PG 14 117 11450
Visso MC 14 1107 12557
Vallo di Nera PG 15 364 12921
Ussita MC 17 444 13365
Sant'Anatolia di Narco PG 19 564 13929
Monteleone di Spoleto PG 19 599 14528

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km SE of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
57 Km W of Teramo (54892 inhabitants)
59 Km NW of L'Aquila (69753 inhabitants)
63 Km SE of Perugia (166134 inhabitants)
88 Km NE of Viterbo (67173 inhabitants)
94 Km N of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
97 Km W of Montesilvano (53738 inhabitants)
98 Km SW of Ancona (100861 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
14:49:56		 42.8098 13.0405 10 2019-02-12
14:03:23		 Bollettino Sismico Italiano INGV 48013291
Reviewed
Rev100 		ML 2.1 2016-10-31
14:49:56		 42.8067 13.0487 10 2016-10-31
14:55:35		 Sala Sismica INGV-Roma 31283141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-31 14:49:56 ± 0.03
Latitude 42.8098 ± 0.0018
Longitude 13.0405 ± 0.0025
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 48013291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 210
Semi-minor axis of confidence ellipse (meter) 190
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 309
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 45
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.52970
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 21
Type of magnitude ML
Reference to an origin 48013291
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-07-18 08:47:44

ML:2.1

Field Value
Value 2.1
Uncertainty 0.4
Num. used stations 17
Type of magnitude ML
Reference to an origin 31283141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-31 14:55:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VAGA.HHZ. 2016-10-31T14:50:50.99 3.0 undecidable manual Sg 3.12 0
IV.PIEI.HHZ. 2016-10-31T14:50:25.99 3.0 undecidable manual S -0.22 0
IV.ARVD.HHZ. 2016-10-31T14:50:21.99 3.0 undecidable manual S 0.15 0
IV.PIEI.HHZ. 2016-10-31T14:50:12.76 3.0 negative manual P 0.11 0
IV.ATVO.HHZ. 2016-10-31T14:50:10.86 3.0 undecidable manual P -0.36 0
IV.SMA1.EHZ. 2016-10-31T14:50:07.41 1.0 undecidable manual S 130 31.2465 50 0.05 24
XO.AM05.EHZ. 2016-10-31T14:50:07.66 0.3 undecidable manual S 54 31.4463 50 0.23 69
IV.T1241.EHZ. 2016-10-31T14:50:07.27 0.3 undecidable manual S 81 32.1456 50 -0.35 67
IV.T1256.HHZ. 2016-10-31T14:50:06.12 0.6 undecidable manual S 35 26.4513 50 0.02 49
IV.GIGS.HHZ. 2016-10-31T14:50:06.83 0.6 undecidable manual P 132 58.7967 50 -0.16 45
IV.T1204.EHZ. 2016-10-31T14:50:06.23 0.6 undecidable manual S 123 26.9508 50 0 49
IV.EL6.EHZ. 2016-10-31T14:50:06.96 3.0 negative manual P -0.24 0
IV.TERO.HHZ. 2016-10-31T14:50:05.84 0.6 undecidable manual P 114 50.4162 50 0.14 45
IV.T1244.EHZ. 2016-10-31T14:50:05.05 0.1 undecidable manual S 106 21.7671 116 0.25 93
IV.FDMO.HHZ. 2016-10-31T14:50:05.68 0.3 undecidable manual S 9 25.4523 50 -0.14 71
IV.T1201.HNN. 2016-10-31T14:50:05.90 1.0 undecidable manual S 135 24.0537 50 0.44 22
IV.SNTG.HHZ. 2016-10-31T14:50:05.87 3.0 positive manual P -0.04 0
IV.MMO1.HNZ. 2016-10-31T14:50:05.58 0.6 undecidable manual S 67 25.3524 50 -0.21 47
IV.ASSB.HHZ. 2016-10-31T14:50:04.17 3.0 positive manual P -0.16 0
IV.LNSS.HHZ. 2016-10-31T14:50:04.95 0.3 undecidable manual S 180 22.9548 50 -0.21 70
IV.CAMP.HHZ. 2016-10-31T14:50:04.44 0.6 undecidable manual P 135 42.7239 50 -0.08 47
IV.CESX.HHZ. 2016-10-31T14:50:04.49 3.0 positive manual P -0.31 0
IV.T1247.HHZ. 2016-10-31T14:50:04.57 1.0 undecidable manual P 153 45.9207 50 -0.44 21
IV.T1221.HNE. 2016-10-31T14:50:03.29 0.6 undecidable manual S 290 16.6722 122 0.02 49
IV.GUMA.HNN. 2016-10-31T14:50:03.89 0.3 undecidable manual P 40 36.8298 50 0.28 68
IV.T1211.EHZ. 2016-10-31T14:50:03.30 0.3 undecidable manual P 206 34.2435 50 0.09 71
IV.FEMA.HNE. 2016-10-31T14:50:03.25 0.3 undecidable manual S 3 16.872 122 -0.07 73
IV.RM33.EHZ. 2016-10-31T14:50:03.51 0.1 undecidable manual P 157 36.2415 50 -0.01 96
IV.ARRO.EHZ. 2016-10-31T14:50:03.13 0.3 undecidable manual P 221 34.0437 50 -0.05 72
IV.CSP1.EHZ. 2016-10-31T14:50:03.25 0.3 undecidable manual P 23 34.0437 50 0.08 71
IV.T1243.HHZ. 2016-10-31T14:50:03.20 0.3 undecidable manual P 111 35.5422 50 -0.21 69
XO.AM05.EHZ. 2016-10-31T14:50:02.83 0.1 positive manual P 54 31.4463 50 0.05 96
IV.T1245.HHZ. 2016-10-31T14:50:02.10 0.1 undecidable manual S 67 13.0758 129 -0.13 97
IV.SMA1.EHZ. 2016-10-31T14:50:02.87 0.1 undecidable manual P 130 31.2465 50 0.13 94
IV.T1217.EHZ. 2016-10-31T14:50:02.40 0.3 undecidable manual S 219 14.0748 127 -0.1 73
IV.T1241.EHZ. 2016-10-31T14:50:02.83 0.3 undecidable manual P 81 32.1456 50 -0.06 71
IV.T1299.HNN. 2016-10-31T14:50:02.26 0.6 undecidable manual P 135 27.75 50 0.06 48
IV.T1204.EHZ. 2016-10-31T14:50:02.15 0.1 undecidable manual P 123 26.9508 50 0.06 96
IV.T1215.EHZ. 2016-10-31T14:50:02.37 0.1 undecidable manual S 266 14.0748 127 -0.12 97
IV.FDMO.HHZ. 2016-10-31T14:50:01.83 0.3 undecidable manual P 9 25.4523 50 -0.02 73
IV.MMO1.HNZ. 2016-10-31T14:50:01.71 0.1 undecidable manual P 67 25.3524 50 -0.12 95
IV.T1244.EHZ. 2016-10-31T14:50:01.42 0.3 undecidable manual P 106 21.7671 116 0.16 71
IV.T1256.HHZ. 2016-10-31T14:50:01.97 0.1 positive manual P 35 26.4513 50 -0.05 97
IV.T1216.EHZ. 2016-10-31T14:50:01.10 0.1 undecidable manual S 349 9.0798 139 -0.14 98
IV.LNSS.HHZ. 2016-10-31T14:50:01.40 0.1 negative manual P 180 22.9548 50 -0.07 97
IV.T1201.HNN. 2016-10-31T14:50:01.84 0.6 undecidable manual P 135 24.0537 50 0.19 47
IV.T1217.EHZ. 2016-10-31T14:50:00.04 0.1 positive manual P 219 14.0748 127 0.1 98
IV.T1221.HNE. 2016-10-31T14:50:00.54 0.6 undecidable manual P 290 16.6722 122 0.16 48
IV.FEMA.HNE. 2016-10-31T14:50:00.82 0.3 undecidable manual P 3 16.872 122 0.41 68
IV.T1215.EHZ. 2016-10-31T14:50:00.02 0.3 undecidable manual P 266 14.0748 127 0.09 73
IV.NRCA.HHZ. 2016-10-31T14:50:00.34 0.1 undecidable manual S 66 6.5934 148 -0.36 94
IV.T1216.EHZ. 2016-10-31T14:49:59.35 0.1 undecidable manual P 349 9.0798 139 0.15 98
IV.T1245.HHZ. 2016-10-31T14:49:59.87 0.1 undecidable manual P 67 13.0758 129 0.09 98
IV.NRCA.HHZ. 2016-10-31T14:49:58.94 0.1 undecidable manual P 66 6.5934 148 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
XO.AM05.EHE. ML:2.3 0.0008809342 0.1024 AML other m 2016-10-31T14:50:08.00
XO.AM05.HNE. ML:1.7 0.0002207441 0.096 AML other m 2016-10-31T14:50:08.42
IV.ASSB.HHE. ML:1.9 0.00028374330000000003 0.2048 AML other m 2016-10-31T14:50:10.55
IV.ASSB.HHN. ML:1.9 0.00026190445 0.1984 AML other m 2016-10-31T14:50:11.61
IV.ATVO.HHE. ML:1.6 0.000048873015 0.3008 AML other m 2016-10-31T14:50:26.21
IV.ATVO.HHN. ML:1.5 0.000041132795 0.3776 AML other m 2016-10-31T14:50:27.16
IV.CAMP.HHE. ML:1.4 0.000086107035 0.4992 AML other m 2016-10-31T14:50:17.52
IV.CAMP.HHN. ML:1.4 0.00009167886 0.4608 AML other m 2016-10-31T14:50:14.91
IV.CESX.HHN. ML:1.8 0.00018566280000000001 0.32 AML other m 2016-10-31T14:50:13.90
IV.CESX.HHE. ML:1.7 0.0001582176 0.224 AML other m 2016-10-31T14:50:12.00
IV.CSP1.EHE. ML:2.2 0.00063249735 0.1792 AML other m 2016-10-31T14:50:08.82
IV.CSP1.EHN. ML:2.2 0.0006451789 0.3392 AML other m 2016-10-31T14:50:10.13
IV.EL6.EHE. ML:2.1 0.0002623183 0.3648 AML other m 2016-10-31T14:50:21.04
IV.EL6.EHN. ML:2.0 0.00021829654999999993 0.1984 AML other m 2016-10-31T14:50:16.04
IV.FDMO.HHE. ML:2.1 0.00079708815 0.1408 AML other m 2016-10-31T14:50:05.93
IV.FDMO.HHN. ML:2.4 0.0014029275000000002 0.1984 AML other m 2016-10-31T14:50:06.07
IV.LNSS.HHE. ML:2.2 0.0010676009 0.1792 AML other m 2016-10-31T14:50:05.35
IV.LNSS.HHN. ML:2.5 0.0019438525 0.1408 AML other m 2016-10-31T14:50:05.08
IV.PIEI.HHE. ML:0.0 0.000056497770000000004 0.2176 AML other m 2016-10-31T14:50:25.96
IV.PIEI.HHN. ML:1.6 0.00004562929 0.1408 AML other m 2016-10-31T14:50:25.88
IV.RM33.EHN. ML:1.9 0.00029955715 0.1216 AML other m 2016-10-31T14:50:09.70
IV.RM33.HNE. ML:1.8 0.00026106014999999997 0.16 AML other m 2016-10-31T14:50:10.71
IV.RM33.EHE. ML:1.9 0.00028226495 0.16 AML other m 2016-10-31T14:50:10.71
IV.RM33.HNN. ML:1.9 0.0003185263 0.1216 AML other m 2016-10-31T14:50:09.76
IV.SNTG.HNE. ML:2.0 0.0002468491 0.4928 AML other m 2016-10-31T14:50:13.54
IV.SNTG.HHE. ML:1.7 0.00012671256 0.1024 AML other m 2016-10-31T14:50:15.01
IV.SNTG.HHN. ML:1.8 0.00016666010000000001 0.1408 AML other m 2016-10-31T14:50:14.75
IV.T1204.EHE. ML:2.3 0.00105635015 0.1792 AML other m 2016-10-31T14:50:06.95
IV.T1204.EHN. ML:1.9 0.0004438137 0.1408 AML other m 2016-10-31T14:50:06.32
IV.T1211.HNN. ML:2.1 0.0005780531 0.192 AML other m 2016-10-31T14:50:09.10
IV.T1211.HNE. ML:1.9 0.000321308095 0.128 AML other m 2016-10-31T14:50:09.91
IV.T1211.EHE. ML:1.9 0.00033781905 0.16 AML other m 2016-10-31T14:50:09.99
IV.T1211.EHN. ML:2.1 0.0005676545 0.192 AML other m 2016-10-31T14:50:09.10
IV.T1215.EHE. ML:2.1 0.0012693609999999999 0.064 AML other m 2016-10-31T14:50:02.67
IV.T1215.EHN. ML:2.0 0.0009679351000000001 0.1472 AML other m 2016-10-31T14:50:02.43
IV.T1215.HNE. ML:2.1 0.0012612327 0.064 AML other m 2016-10-31T14:50:02.67
IV.T1215.HNN. ML:2.0 0.0009481097999999999 0.1472 AML other m 2016-10-31T14:50:02.43
IV.T1216.EHE. ML:2.4 0.0029325895 0.1472 AML other m 2016-10-31T14:50:02.01
IV.T1216.EHN. ML:2.5 0.0044190825 0.096 AML other m 2016-10-31T14:50:01.57
IV.T1217.EHN. ML:1.9 0.0007678044999999999 0.192 AML other m 2016-10-31T14:50:04.07
IV.T1217.HNN. ML:1.8 0.00072198815 0.192 AML other m 2016-10-31T14:50:04.07
IV.T1217.HNE. ML:1.8 0.00066743585 0.0768 AML other m 2016-10-31T14:50:03.26
IV.T1217.EHE. ML:1.8 0.0006451205 0.0768 AML other m 2016-10-31T14:50:03.26
IV.T1241.HNN. ML:2.2 0.0007751999999999981 0.1984 AML other m 2016-10-31T14:50:07.75
IV.T1241.HNE. ML:2.2 0.0006976499999999958 0.128 AML other m 2016-10-31T14:50:11.13
IV.T1245.HHE. ML:2.5 0.0031548929999999998 0.1216 AML other m 2016-10-31T14:50:02.34
IV.T1245.HHN. ML:2.6 0.0042884245 0.1408 AML other m 2016-10-31T14:50:02.94
IV.T1245.HNE. ML:2.5 0.0036411155 0.1344 AML other m 2016-10-31T14:50:02.35
IV.T1256.HNE. ML:1.9 0.00047782649999999994 0.1728 AML other m 2016-10-31T14:50:06.34
IV.T1256.HHE. ML:2.0 0.0005983733 0.2816 AML other m 2016-10-31T14:50:06.25
IV.TERO.HNN. ML:1.8 0.00014285202 0.4608 AML other m 2016-10-31T14:50:21.05
IV.TERO.HNE. ML:1.7 0.00013712949999999998 0.2752 AML other m 2016-10-31T14:50:17.28
IV.TERO.HHE. ML:1.8 0.00014938738 0.1408 AML other m 2016-10-31T14:50:17.17
IV.TERO.HHN. ML:1.8 0.000149211505 0.1216 AML other m 2016-10-31T14:50:13.19
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
Waveforms Seismic signals in miniseed + resp format Download