Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 31-10-2016 and time 00:19:31 (Italy) in region 5 km SW Norcia (PG)

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

  • 30-10-2016 23:19:31 (UTC)
  • 31-10-2016 00:19:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7600, 13.0570 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
Norcia PG 5 4957 4957
Cascia PG 6 3217 8174
Poggiodomo PG 11 117 8291
Cerreto di Spoleto PG 13 1075 9366
Preci PG 13 724 10090
Monteleone di Spoleto PG 15 599 10689
Vallo di Nera PG 16 364 11053
Castelsantangelo sul Nera MC 17 281 11334
Accumoli RI 17 667 12001
Cittareale RI 18 482 12483
Sellano PG 18 1079 13562
Sant'Anatolia di Narco PG 18 564 14126
Scheggino PG 19 461 14587
Visso MC 19 1107 15694
Arquata del Tronto AP 20 1178 16872

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SE of Foligno (57155 inhabitants)
40 Km NE of Terni (111501 inhabitants)
53 Km NW of L'Aquila (69753 inhabitants)
54 Km W of Teramo (54892 inhabitants)
67 Km SE of Perugia (166134 inhabitants)
87 Km E of Viterbo (67173 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km N of Tivoli (56533 inhabitants)
94 Km W of Montesilvano (53738 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 2016-10-30
23:19:31		 42.7598 13.0573 11 2019-02-12
14:03:24		 Bollettino Sismico Italiano INGV 48675751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-30 23:19:31 ± 0.04
Latitude 42.7598 ± 0.0027
Longitude 13.0573 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 48675751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 265
Semi-minor axis of confidence ellipse (meter) 253
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 212
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 46
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.10432
Epicentral distance of station farthest from the epicenter (degree) 0.49283
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 13
Type of magnitude ML
Reference to an origin 48675751
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-08-04 10:53:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIGS.HHN. 2016-10-30T23:19:48.30 0.6 undecidable manual S 129 54.1014 50 -0.1 46
IV.TERO.HHZ. 2016-10-30T23:19:46.40 0.6 undecidable manual S 109 47.1195 50 -0.13 46
IV.GUMA.HNN. 2016-10-30T23:19:45.20 0.6 undecidable manual S 34 40.4262 50 0.44 44
IV.T1246.HHN. 2016-10-30T23:19:44.60 0.6 undecidable manual S 119 40.5261 50 -0.18 46
IV.CAMP.HHE. 2016-10-30T23:19:43.90 0.6 undecidable manual S 131 37.9287 50 -0.19 47
IV.ARRO.EHZ. 2016-10-30T23:19:42.30 0.6 undecidable manual S 230 31.1466 50 0.04 49
IV.OFFI.HHE. 2016-10-30T23:19:42.08 0.1 undecidable manual P 69 54.7008 50 0.77 76
IV.RM33.EHZ. 2016-10-30T23:19:42.00 0.6 undecidable manual S 155 30.6471 50 -0.13 48
IV.T1243.HNZ. 2016-10-30T23:19:42.30 0.6 undecidable manual S 102 32.6451 50 -0.37 45
IV.SMA1.EHZ. 2016-10-30T23:19:41.40 0.6 undecidable manual S 122 26.8509 50 0.28 47
IV.GIGS.HHN. 2016-10-30T23:19:41.03 0.3 undecidable manual P 129 54.1014 50 -0.19 68
IV.T1211.EHZ. 2016-10-30T23:19:41.90 0.6 undecidable manual S 213 30.1476 50 -0.09 48
IV.T1299.HNN. 2016-10-30T23:19:40.10 0.6 undecidable manual S 127 23.0547 50 0 50
IV.TERO.HHZ. 2016-10-30T23:19:40.03 0.3 undecidable manual P 109 47.1195 50 -0.11 70
IV.T1204.EHZ. 2016-10-30T23:19:40.10 0.6 undecidable manual S 114 23.0547 50 -0.02 50
IV.MMO1.EHN. 2016-10-30T23:19:40.80 0.6 undecidable manual S 55 26.8509 50 -0.32 46
IV.T1201.HNN. 2016-10-30T23:19:39.30 0.6 undecidable manual S 126 19.4694 119 0.18 48
IV.CESX.HHZ. 2016-10-30T23:19:39.41 0.6 undecidable manual P 247 41.9247 50 0.07 47
IV.T1246.HHN. 2016-10-30T23:19:39.04 0.1 undecidable manual P 119 40.5261 50 -0.09 95
IV.GUMA.HNN. 2016-10-30T23:19:39.30 0.3 undecidable manual P 34 40.4262 50 0.18 70
IV.ASSB.HHZ. 2016-10-30T23:19:39.94 0.3 undecidable manual P 314 45.1215 50 0.11 70
IV.CAMP.HHE. 2016-10-30T23:19:38.64 0.3 undecidable manual P 131 37.9287 50 -0.09 71
IV.T1247.HHZ. 2016-10-30T23:19:38.89 0.6 undecidable manual P 151 40.4262 50 -0.22 46
IV.LNSS.HHZ. 2016-10-30T23:19:38.40 0.6 undecidable manual S 185 17.4714 122 -0.13 49
IV.T1243.HNZ. 2016-10-30T23:19:37.62 0.3 undecidable manual P 102 32.6451 50 -0.29 69
IV.T1216.EHZ. 2016-10-30T23:19:37.40 0.6 undecidable manual S 348 14.874 126 -0.37 47
IV.T1211.EHZ. 2016-10-30T23:19:37.54 0.1 undecidable manual P 213 30.1476 50 0.02 98
IV.ARRO.EHZ. 2016-10-30T23:19:37.68 0.1 undecidable manual P 230 31.1466 50 0.01 98
IV.T1245.HHZ. 2016-10-30T23:19:37.60 0.6 undecidable manual S 45 15.0738 125 -0.24 48
IV.SMA1.EHZ. 2016-10-30T23:19:37.24 0.3 undecidable manual P 122 26.8509 50 0.23 71
IV.T1215.EHZ. 2016-10-30T23:19:37.80 0.6 undecidable manual S 287 16.0728 124 -0.31 47
IV.RM33.EHZ. 2016-10-30T23:19:37.59 0.1 undecidable manual P 155 30.6471 50 -0.01 98
IV.T1299.HNN. 2016-10-30T23:19:36.56 0.1 undecidable manual P 127 23.0547 50 0.13 97
IV.T1217.EHZ. 2016-10-30T23:19:36.90 0.6 undecidable manual S 243 11.5773 133 0.02 51
IV.MMO1.EHN. 2016-10-30T23:19:36.81 0.1 undecidable manual P 55 26.8509 50 -0.2 95
IV.T1204.EHZ. 2016-10-30T23:19:36.48 0.3 undecidable manual P 114 23.0547 50 0.04 74
IV.T1201.HNN. 2016-10-30T23:19:36.12 0.1 undecidable manual P 126 19.4694 119 0.25 95
IV.T1216.EHZ. 2016-10-30T23:19:35.09 0.3 undecidable manual P 348 14.874 126 0.01 75
IV.LNSS.HHZ. 2016-10-30T23:19:35.60 0.1 undecidable manual P 185 17.4714 122 0.08 99
IV.T1245.HHZ. 2016-10-30T23:19:35.11 0.3 undecidable manual P 45 15.0738 125 -0.01 75
IV.T1215.EHZ. 2016-10-30T23:19:35.25 0.1 positive manual P 287 16.0728 124 -0.03 100
IV.T1217.EHZ. 2016-10-30T23:19:34.68 0.1 undecidable manual P 243 11.5773 133 0.11 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:1.8 0.00027000164999999997 0.2048 AML other m 2016-10-30T23:19:43.67
IV.ARRO.EHN. ML:1.7 0.00025509424999999996 0.1408 AML other m 2016-10-30T23:19:42.89
IV.ASSB.HHE. ML:2.1 0.00035694835 0.192 AML other m 2016-10-30T23:19:48.20
IV.ASSB.HHN. ML:1.9 0.00023693950000000004 0.2176 AML other m 2016-10-30T23:19:48.27
IV.CESX.HHN. ML:1.7 0.00016606645 0.32 AML other m 2016-10-30T23:19:53.77
IV.CESX.HHE. ML:1.7 0.00017543874 0.384 AML other m 2016-10-30T23:19:47.14
IV.LNSS.HHE. ML:2.0 0.00093152685 0.1408 AML other m 2016-10-30T23:19:38.96
IV.LNSS.HHN. ML:2.4 0.00202093765 0.1024 AML other m 2016-10-30T23:19:39.14
IV.RM33.EHE. ML:2.0 0.00045716 0.3072 AML other m 2016-10-30T23:19:44.06
IV.RM33.HNN. ML:1.8 0.00027380605000000004 0.1792 AML other m 2016-10-30T23:19:44.43
IV.RM33.EHN. ML:1.8 0.00030215820000000003 0.2688 AML other m 2016-10-30T23:19:44.13
IV.RM33.HNE. ML:2.0 0.00042179445000000007 0.3072 AML other m 2016-10-30T23:19:44.06
IV.SMA1.EHN. ML:2.0 0.0004785123 0.5248 AML other m 2016-10-30T23:19:45.77
IV.SMA1.EHE. ML:2.1 0.0007878133 0.448 AML other m 2016-10-30T23:19:44.52
IV.T1211.HNN. ML:2.2 0.0007490242499999999 0.1408 AML other m 2016-10-30T23:19:42.56
IV.T1211.HNE. ML:2.1 0.0006065245500000001 0.1152 AML other m 2016-10-30T23:19:43.73
IV.T1211.EHN. ML:2.2 0.0007370413 0.1408 AML other m 2016-10-30T23:19:42.56
IV.T1211.EHE. ML:2.1 0.00060999715 0.1024 AML other m 2016-10-30T23:19:43.68
IV.T1215.HNN. ML:1.9 0.0006679659000000001 0.0896 AML other m 2016-10-30T23:19:38.09
IV.T1215.EHN. ML:1.9 0.000674239 0.0768 AML other m 2016-10-30T23:19:38.09
IV.T1215.EHE. ML:1.9 0.00067552565 0.064 AML other m 2016-10-30T23:19:38.91
IV.T1215.HNE. ML:1.9 0.0006510817399999999 0.064 AML other m 2016-10-30T23:19:38.91
IV.T1216.EHN. ML:1.9 0.0007808965000000001 0.2688 AML other m 2016-10-30T23:19:40.05
IV.T1216.EHE. ML:1.9 0.0008038500499999999 0.0768 AML other m 2016-10-30T23:19:38.32
IV.T1217.EHN. ML:2.0 0.0012399525 0.1664 AML other m 2016-10-30T23:19:37.91
IV.T1217.EHE. ML:2.0 0.00111047 0.064 AML other m 2016-10-30T23:19:37.67
IV.T1217.HNN. ML:2.0 0.0012444375 0.1664 AML other m 2016-10-30T23:19:37.83
IV.T1217.HNE. ML:2.0 0.00117834905 0.064 AML other m 2016-10-30T23:19:37.67
IV.T1245.HNE. ML:2.5 0.0027002439999999996 0.3328 AML other m 2016-10-30T23:19:38.96
IV.T1245.HNN. ML:2.6 0.0038346505 0.256 AML other m 2016-10-30T23:19:38.62
IV.T1245.HHE. ML:2.5 0.0029951404999999996 0.1792 AML other m 2016-10-30T23:19:38.63
IV.T1245.HHN. ML:2.6 0.0037108759999999997 0.2432 AML other m 2016-10-30T23:19:38.49
IV.T1247.HHN. ML:2.0 0.0003608948 0.192 AML other m 2016-10-30T23:19:46.32
IV.T1247.HHE. ML:2.0 0.0003290759 0.1792 AML other m 2016-10-30T23:19:47.86
IV.TERO.HHN. ML:2.2 0.0004153104 0.1408 AML other m 2016-10-30T23:19:47.09
IV.TERO.HNE. ML:2.0 0.00026847195 0.1152 AML other m 2016-10-30T23:19:46.78
IV.TERO.HHE. ML:2.0 0.0003060049 0.1408 AML other m 2016-10-30T23:19:46.84
IV.TERO.HNN. ML:2.1 0.0003624434 0.1408 AML other m 2016-10-30T23:19:47.02
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