Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 31-10-2016 and time 06:43:14 (Italy) in region 6 km SE Norcia (PG)

A magnitude ML 2.0 earthquake occured in region: 6 km SE Norcia (PG), on

  • 31-10-2016 05:43:14 (UTC)
  • 31-10-2016 06:43:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7610, 13.1550 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
Norcia PG 6 4957 4957
Accumoli RI 11 667 5624
Arquata del Tronto AP 12 1178 6802
Cascia PG 12 3217 10019
Castelsantangelo sul Nera MC 15 281 10300
Cittareale RI 16 482 10782
Preci PG 16 724 11506
Montegallo AP 17 523 12029
Amatrice RI 18 2657 14686
Poggiodomo PG 19 117 14803
Visso MC 20 1107 15910

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km SE of Foligno (57155 inhabitants)
46 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
50 Km NW of L'Aquila (69753 inhabitants)
73 Km SE of Perugia (166134 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km W of Pescara (121014 inhabitants)
93 Km NE of Tivoli (56533 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
95 Km W of Chieti (51815 inhabitants)
100 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
05:43:14		 42.7607 13.155 12 2019-02-12
14:03:28		 Bollettino Sismico Italiano INGV 51534851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-31 05:43:14 ± 0.07
Latitude 42.7607 ± 0.0027
Longitude 13.1550 ± 0.0037
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 51534851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 330
Semi-minor axis of confidence ellipse (meter) 134
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 353
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
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 37
Number of defining phases 36
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) 0.09893
Epicentral distance of station farthest from the epicenter (degree) 0.62323
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 51534851
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-11-02 08:55:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIAM.HHZ. 2016-10-31T05:43:32.20 0.6 undecidable manual S 183 54.7008 92 0.15 46
IV.GIGS.HHZ. 2016-10-31T05:43:29.90 0.6 undecidable manual S 135 48.2184 92 -0.42 44
IV.TERO.HHN. 2016-10-31T05:43:27.80 0.6 undecidable manual S 113 39.627 93 -0.23 46
IV.T1247.HHZ. 2016-10-31T05:43:27.60 1.0 undecidable manual S 162 37.2294 93 0.21 23
IV.T1211.EHZ. 2016-10-31T05:43:27.20 0.3 undecidable manual S 224 35.1426 93 0.37 68
IV.T1246.HHN. 2016-10-31T05:43:26.20 0.3 undecidable manual S 125 33.8439 93 -0.28 69
IV.VCEL.EHZ. 2016-10-31T05:43:26.65 1.0 undecidable manual P 126 69.1752 91 -0.41 21
IV.ATCC.EHZ. 2016-10-31T05:43:26.33 0.3 positive manual P 319 62.9925 91 0.23 67
XO.AM05.HNZ. 2016-10-31T05:43:25.20 0.3 undecidable manual S 34 28.9488 94 0.03 73
IV.SNTG.HHZ. 2016-10-31T05:43:25.47 0.1 undecidable manual P 342 57.498 92 0.2 90
IV.T1241.HNZ. 2016-10-31T05:43:24.10 0.3 undecidable manual S 65 24.8529 96 0.01 74
IV.OFFI.HHZ. 2016-10-31T05:43:24.35 1.0 undecidable manual P 66 47.3193 92 0.66 20
IV.FIAM.HHZ. 2016-10-31T05:43:24.69 0.3 undecidable manual P 183 54.7008 92 -0.14 68
IV.SEF1.HNN. 2016-10-31T05:43:24.18 0.6 undecidable manual P 339 46.0206 92 0.69 40
IV.GIGS.HHZ. 2016-10-31T05:43:23.68 0.1 undecidable manual P 135 48.2184 92 -0.16 92
IV.T1243.HHZ. 2016-10-31T05:43:23.80 0.6 undecidable manual S 106 24.9528 96 -0.31 47
IV.T1215.EHZ. 2016-10-31T05:43:23.60 0.1 undecidable manual S 281 23.754 96 -0.2 94
IV.MMO1.EHZ. 2016-10-31T05:43:23.00 0.1 undecidable manual S 42 20.7681 99 -0.01 100
IV.T1217.EHZ. 2016-10-31T05:43:22.50 0.6 undecidable manual S 254 18.9699 101 -0.04 49
IV.T1246.HHN. 2016-10-31T05:43:22.15 1.0 undecidable manual P 125 33.8439 93 0.53 22
IV.T1211.EHZ. 2016-10-31T05:43:22.35 3.0 undecidable manual P 224 35.1426 93 0.53 0
IV.T1247.HHZ. 2016-10-31T05:43:22.26 1.0 undecidable manual P 162 37.2294 93 0.11 24
IV.T1204.EHZ. 2016-10-31T05:43:21.70 0.1 undecidable manual S 125 16.1727 106 -0.11 99
IV.T1201.HNN. 2016-10-31T05:43:21.40 0.6 undecidable manual S 146 13.875 113 0.17 48
XO.AM05.HNZ. 2016-10-31T05:43:21.13 0.6 undecidable manual P 34 28.9488 94 0.27 47
IV.TERO.HHN. 2016-10-31T05:43:21.74 0.6 undecidable manual P 113 39.627 93 -0.77 39
IV.T1241.HNZ. 2016-10-31T05:43:20.23 0.3 undecidable manual P 65 24.8529 96 -0.01 74
IV.T1245.HHZ. 2016-10-31T05:43:20.60 0.1 undecidable manual S 14 10.9779 124 0.05 100
IV.T1243.HHZ. 2016-10-31T05:43:20.15 0.6 undecidable manual P 106 24.9528 96 -0.1 49
IV.T1215.EHZ. 2016-10-31T05:43:20.02 0.3 undecidable manual P 281 23.754 96 -0.05 73
IV.FEMA.HNZ. 2016-10-31T05:43:19.45 0.3 undecidable manual P 339 23.9538 96 -0.65 62
IV.MMO1.EHZ. 2016-10-31T05:43:19.69 0.1 undecidable manual P 42 20.7681 99 0.07 98
IV.T1217.EHZ. 2016-10-31T05:43:19.38 0.1 undecidable manual P 254 18.9699 101 0.04 100
IV.T1204.EHZ. 2016-10-31T05:43:19.36 0.1 undecidable manual P 125 16.1727 106 0.44 91
IV.T1201.HNN. 2016-10-31T05:43:18.85 0.1 undecidable manual P 146 13.875 113 0.26 95
IV.T1216.EHZ. 2016-10-31T05:43:18.80 0.1 undecidable manual P 323 18.1707 102 -0.42 91
IV.T1245.HHZ. 2016-10-31T05:43:18.36 0.1 undecidable manual P 14 10.9779 124 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1241.EHN. ML:0.0 0.000546825 0.24 AML other m 2016-10-31T05:43:26.64
IV.T1241.EHE. ML:0.0 0.0006271537 0.1216 AML other m 2016-10-31T05:43:24.29
IV.FIAM.HHN. ML:0.0 0.00017344989999999998 0.3392 AML other m 2016-10-31T05:43:32.80
IV.FIAM.HHE. ML:0.0 0.00017264269999999997 0.3008 AML other m 2016-10-31T05:43:32.88
IV.ATCC.EHE. ML:0.0 0.0001650241 0.2816 AML other m 2016-10-31T05:43:36.62
IV.ATCC.EHN. ML:0.0 0.000096907535 0.2592 AML other m 2016-10-31T05:43:37.51
IV.SNTG.HHE. ML:0.0 0.00019337155000000001 0.16 AML other m 2016-10-31T05:43:49.55
IV.SNTG.HHN. ML:0.0 0.0001651687 0.1792 AML other m 2016-10-31T05:43:49.97
IV.T1247.HHE. ML:0.0 0.00046034589999999995 0.2976 AML other m 2016-10-31T05:43:28.53
IV.T1247.HHN. ML:0.0 0.0004729232 0.1408 AML other m 2016-10-31T05:43:31.13
IV.T1211.HNN. ML:0.0 0.00057025645 0.272 AML other m 2016-10-31T05:43:27.86
IV.T1211.HNE. ML:0.0 0.00041128535 0.096 AML other m 2016-10-31T05:43:28.05
IV.GIGS.HHE. ML:0.0 0.000056386815 0.08 AML other m 2016-10-31T05:43:30.67
IV.GIGS.HHN. ML:0.0 0.000046828835 0.0992 AML other m 2016-10-31T05:43:30.67
IV.OFFI.HHN. ML:0.0 0.00037639250000000003 0.6208 AML other m 2016-10-31T05:43:33.27
IV.OFFI.HHE. ML:0.0 0.00041384135 0.56 AML other m 2016-10-31T05:43:34.45
IV.T1245.HHE. ML:2.6 0.0037772135000000004 0.2016 AML other m 2016-10-31T05:43:21.40
IV.T1245.HHN. ML:2.6 0.003993254 0.2816 AML other m 2016-10-31T05:43:22.12
IV.T1245.HNE. ML:2.4 0.003043129 0.1408 AML other m 2016-10-31T05:43:21.17
IV.T1245.HNN. ML:2.6 0.0040165235 0.2912 AML other m 2016-10-31T05:43:22.12
IV.T1217.EHN. ML:1.8 0.0004892564999999999 0.064 AML other m 2016-10-31T05:43:23.03
IV.T1217.EHE. ML:1.8 0.00050774065 0.096 AML other m 2016-10-31T05:43:24.19
IV.T1217.HNN. ML:1.8 0.00050439355 0.064 AML other m 2016-10-31T05:43:23.03
IV.T1217.HNE. ML:1.8 0.0005251342999999999 0.096 AML other m 2016-10-31T05:43:24.19
IV.FEMA.HNE. ML:2.5 0.001902433 0.1408 AML other m 2016-10-31T05:43:21.71
IV.FEMA.HNN. ML:2.5 0.001971009 0.1216 AML other m 2016-10-31T05:43:22.07
IV.T1215.HNE. ML:1.8 0.00041850091 0.08 AML other m 2016-10-31T05:43:24.76
IV.T1215.EHE. ML:1.9 0.000423323 0.064 AML other m 2016-10-31T05:43:24.76
IV.T1215.EHN. ML:1.9 0.0005207709 0.096 AML other m 2016-10-31T05:43:24.28
IV.T1215.HNN. ML:1.9 0.0005246976 0.096 AML other m 2016-10-31T05:43:24.28
IV.T1211.EHE. ML:2.0 0.0004213329 0.128 AML other m 2016-10-31T05:43:30.66
IV.T1211.EHN. ML:2.2 0.0005834022600000001 0.272 AML other m 2016-10-31T05:43:28.01
IV.SNTG.HNE. ML:1.9 0.00017369965 0.16 AML other m 2016-10-31T05:43:49.55
IV.SNTG.HNN. ML:2.0 0.00019431704 0.2016 AML other m 2016-10-31T05:43:49.97
IV.VCEL.EHE. ML:2.0 0.0001624332 0.88 AML other m 2016-10-31T05:43:47.73
IV.VCEL.EHN. ML:1.9 0.00013204197 0.8 AML other m 2016-10-31T05:43:48.78
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