Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 31-10-2016 and time 06:41:13 (Italy) in region 6 km W Norcia (PG)

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

  • 31-10-2016 05:41:13 (UTC)
  • 31-10-2016 06:41:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7940, 13.0260 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 6 4957 4957
Cascia PG 8 3217 8174
Cerreto di Spoleto PG 9 1075 9249
Preci PG 10 724 9973
Poggiodomo PG 12 117 10090
Sellano PG 13 1079 11169
Vallo di Nera PG 14 364 11533
Castelsantangelo sul Nera MC 15 281 11814
Visso MC 16 1107 12921
Sant'Anatolia di Narco PG 17 564 13485
Monteleone di Spoleto PG 17 599 14084
Scheggino PG 18 461 14545
Ussita MC 19 444 14989

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km SE of Foligno (57155 inhabitants)
40 Km NE of Terni (111501 inhabitants)
58 Km W of Teramo (54892 inhabitants)
58 Km NW of L'Aquila (69753 inhabitants)
62 Km SE of Perugia (166134 inhabitants)
86 Km E of Viterbo (67173 inhabitants)
92 Km N of Guidonia Montecelio (88673 inhabitants)
94 Km N of Tivoli (56533 inhabitants)
97 Km W of Montesilvano (53738 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
05:41:13		 42.7943 13.0257 10 2019-02-12
14:03:28		 Bollettino Sismico Italiano INGV 51485581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-31 05:41:13 ± 0.04
Latitude 42.7943 ± 0.0018
Longitude 13.0257 ± 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 51485581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 227
Semi-minor axis of confidence ellipse (meter) 199
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 275
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43
Number of associated phases, regardless of their use for origin computation 60
Number of defining phases 51
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.14124
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 26
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 51485581
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-11-02 07:48:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MCIV.HHZ. 2016-10-31T05:41:49.99 3.0 undecidable manual S 109.8123 4.27 0
IV.RMP.HHZ. 2016-10-31T05:41:46.99 3.0 undecidable manual S -0.67 0
IV.PE3.EHZ. 2016-10-31T05:41:45.99 3.0 undecidable manual S 108.8133 0.55 0
IV.VCEL.EHZ. 2016-10-31T05:41:39.99 3.0 undecidable manual S 0.52 0
IV.ARVD.HHZ. 2016-10-31T05:41:38.99 3.0 undecidable manual S -0.01 0
IV.PE3.EHZ. 2016-10-31T05:41:33.14 3.0 negative manual P 108.8133 1.13 0
IV.FIAM.HHZ. 2016-10-31T05:41:32.40 1.0 undecidable manual S 173 58.8966 50 0.29 22
IV.LAV9.HHZ. 2016-10-31T05:41:32.33 3.0 undecidable manual P 126.6732 -2.45 0
IV.EL6.EHZ. 2016-10-31T05:41:32.80 1.0 undecidable manual S 6 59.6958 50 0.47 21
IV.ATCC.EHZ. 2016-10-31T05:41:31.00 0.1 undecidable manual S 324 53.502 50 0.33 88
IV.SNTG.HHZ. 2016-10-31T05:41:30.00 0.1 undecidable manual S 352 51.6039 50 -0.17 91
IV.SENI.EHZ. 2016-10-31T05:41:30.86 3.0 negative manual P -0.04 0
IV.MCIV.HHZ. 2016-10-31T05:41:28.74 3.0 undecidable manual P 109.8123 -3.44 0
IV.T1246.HHN. 2016-10-31T05:41:28.48 0.3 undecidable manual S 121 44.7219 50 0.15 70
IV.MDAR.HNN. 2016-10-31T05:41:28.40 0.1 undecidable manual S 12 45.2214 50 -0.07 94
IV.GUMA.HNN. 2016-10-31T05:41:27.20 0.1 undecidable manual S 40 38.9277 50 0.4 89
IV.CESX.HHZ. 2016-10-31T05:41:27.70 1.0 undecidable manual S 240 41.3253 50 0.28 23
IV.SEF1.HNN. 2016-10-31T05:41:26.80 0.1 undecidable manual S 351 39.627 50 -0.17 93
IV.ASSB.HHZ. 2016-10-31T05:41:26.90 0.1 undecidable manual S 313 40.626 50 -0.33 90
XO.AM05.EHZ. 2016-10-31T05:41:25.10 0.1 undecidable manual S 53 33.4443 50 -0.23 93
IV.T1241.HNN. 2016-10-31T05:41:25.30 0.1 undecidable manual S 78 33.744 50 -0.09 96
IV.T1243.HHZ. 2016-10-31T05:41:25.80 0.1 undecidable manual S 107 36.1416 50 -0.23 92
IV.OFFI.HHZ. 2016-10-31T05:41:24.74 1.0 undecidable manual P 74 55.8996 50 0.88 18
IV.FIAM.HHZ. 2016-10-31T05:41:24.50 0.3 positive manual P 173 58.8966 50 0.18 67
IV.SMA1.EHN. 2016-10-31T05:41:24.99 0.6 undecidable manual S 126 31.0467 50 0.29 46
IV.ARRO.EHZ. 2016-10-31T05:41:24.50 0.1 undecidable manual S 222 31.9458 50 -0.42 89
IV.EL6.EHZ. 2016-10-31T05:41:24.98 0.6 undecidable manual P 6 59.6958 50 0.54 41
IV.T1299.HNN. 2016-10-31T05:41:24.33 1.0 undecidable manual S 130 27.4503 50 0.61 21
IV.T1211.EHZ. 2016-10-31T05:41:24.80 0.3 undecidable manual S 206 32.1456 50 -0.18 71
IV.SNTG.HHZ. 2016-10-31T05:41:23.60 0.1 undecidable manual P 352 51.6039 50 0.41 87
IV.MMO1.EHZ. 2016-10-31T05:41:23.20 0.1 undecidable manual S 64 27.1506 50 -0.44 90
IV.T1204.EHZ. 2016-10-31T05:41:23.81 1.0 undecidable manual S 119 27.0507 50 0.18 24
IV.ATCC.EHZ. 2016-10-31T05:41:23.56 0.3 undecidable manual P 324 53.502 50 0.07 69
IV.SEF1.HNN. 2016-10-31T05:41:22.06 0.6 undecidable manual P 351 39.627 50 0.71 40
IV.MDAR.HNN. 2016-10-31T05:41:22.19 0.6 undecidable manual P 12 45.2214 50 -0.02 47
IV.LNSS.HHZ. 2016-10-31T05:41:21.60 0.1 undecidable manual S 177 21.2676 115 -0.21 95
IV.CESX.HHZ. 2016-10-31T05:41:21.54 0.1 undecidable manual P 240 41.3253 50 -0.07 95
IV.GUMA.HNN. 2016-10-31T05:41:21.41 0.1 undecidable manual P 40 38.9277 50 0.16 93
IV.ASSB.HHZ. 2016-10-31T05:41:21.46 0.1 undecidable manual P 313 40.626 50 -0.04 95
IV.T1246.HHN. 2016-10-31T05:41:21.82 0.6 undecidable manual P 121 44.7219 50 -0.32 45
IV.T1211.EHZ. 2016-10-31T05:41:20.32 0.1 undecidable manual P 206 32.1456 50 0.12 95
IV.FEMA.HNZ. 2016-10-31T05:41:20.90 0.1 undecidable manual S 6 18.7701 118 -0.11 98
XO.AM05.EHZ. 2016-10-31T05:41:20.33 0.1 undecidable manual P 53 33.4443 50 -0.07 96
IV.T1241.HNN. 2016-10-31T05:41:20.29 0.1 undecidable manual P 78 33.744 50 -0.15 94
IV.ARRO.EHZ. 2016-10-31T05:41:20.05 0.1 undecidable manual P 222 31.9458 50 -0.12 95
IV.T1243.HHZ. 2016-10-31T05:41:20.69 0.1 undecidable manual P 107 36.1416 50 -0.12 95
IV.SMA1.EHN. 2016-10-31T05:41:20.52 0.3 undecidable manual P 126 31.0467 50 0.48 66
IV.T1215.EHZ. 2016-10-31T05:41:19.10 0.1 undecidable manual S 274 12.7761 128 -0.19 97
IV.T1299.HNN. 2016-10-31T05:41:19.72 0.3 undecidable manual P 130 27.4503 50 0.25 70
IV.T1217.EHZ. 2016-10-31T05:41:19.10 0.1 undecidable manual S 220 11.9769 130 0.05 100
IV.MMO1.EHZ. 2016-10-31T05:41:19.20 0.1 undecidable manual P 64 27.1506 50 -0.23 94
IV.T1245.HHZ. 2016-10-31T05:41:19.70 0.1 undecidable manual S 62 14.874 123 -0.17 97
IV.T1204.EHZ. 2016-10-31T05:41:19.23 0.6 undecidable manual P 119 27.0507 50 -0.19 47
IV.LNSS.HHZ. 2016-10-31T05:41:18.40 0.1 undecidable manual P 177 21.2676 115 0.03 99
IV.T1216.EHZ. 2016-10-31T05:41:18.50 0.3 undecidable manual S 357 10.6782 133 -0.22 73
IV.T1215.EHZ. 2016-10-31T05:41:17.03 0.1 undecidable manual P 274 12.7761 128 0.12 99
IV.FEMA.HNZ. 2016-10-31T05:41:17.94 0.3 undecidable manual P 6 18.7701 118 0.03 75
IV.T1245.HHZ. 2016-10-31T05:41:17.45 0.1 undecidable manual P 62 14.874 123 0.2 97
IV.T1217.EHZ. 2016-10-31T05:41:16.99 0.1 undecidable manual P 220 11.9769 130 0.22 97
IV.T1216.EHZ. 2016-10-31T05:41:16.68 0.1 undecidable manual P 357 10.6782 133 0.09 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1216.EHE. ML:2.4 0.00308077 0.176 AML other m 2016-10-31T05:41:19.10
IV.T1215.HNN. ML:2.1 0.00138702025 0.096 AML other m 2016-10-31T05:41:19.27
IV.T1215.EHN. ML:2.1 0.0014344145 0.08 AML other m 2016-10-31T05:41:19.27
IV.T1217.HNN. ML:2.0 0.0012763144999999997 0.224 AML other m 2016-10-31T05:41:19.36
IV.T1215.EHE. ML:2.1 0.0012613184999999997 0.064 AML other m 2016-10-31T05:41:19.45
IV.T1215.HNE. ML:2.0 0.001196455 0.064 AML other m 2016-10-31T05:41:19.45
IV.T1217.EHE. ML:1.9 0.00098828995 0.096 AML other m 2016-10-31T05:41:19.54
IV.T1217.HNE. ML:1.9 0.0010274494 0.096 AML other m 2016-10-31T05:41:19.49
IV.T1216.EHN. ML:2.6 0.004597085 0.144 AML other m 2016-10-31T05:41:19.47
IV.T1217.EHN. ML:1.9 0.000996964 0.208 AML other m 2016-10-31T05:41:19.90
IV.T1245.HHE. ML:2.8 0.005804562000000001 0.1216 AML other m 2016-10-31T05:41:20.08
IV.T1245.HNE. ML:2.8 0.00638187 0.1312 AML other m 2016-10-31T05:41:20.08
IV.T1245.HNN. ML:2.6 0.0036078975 0.1504 AML other m 2016-10-31T05:41:20.68
IV.T1245.HHN. ML:2.6 0.004018773 0.16 AML other m 2016-10-31T05:41:20.68
IV.FEMA.HNN. ML:2.6 0.0031975454999999997 0.1408 AML other m 2016-10-31T05:41:21.20
IV.FEMA.HNE. ML:2.9 0.0069940525 0.1408 AML other m 2016-10-31T05:41:21.35
IV.LNSS.HHN. ML:2.4 0.0016417195 0.1408 AML other m 2016-10-31T05:41:22.01
IV.LNSS.HHE. ML:2.0 0.0007537339000000001 0.1792 AML other m 2016-10-31T05:41:22.18
IV.T1211.HNN. ML:2.1 0.00055542225 0.224 AML other m 2016-10-31T05:41:25.43
IV.T1211.EHN. ML:2.0 0.0005372968499999999 0.208 AML other m 2016-10-31T05:41:25.43
XO.AM05.EHE. ML:2.3 0.0008005852 0.0992 AML other m 2016-10-31T05:41:25.70
XO.AM05.EHN. ML:1.4 0.00009900765 0.08 AML other m 2016-10-31T05:41:25.89
XO.AM05.HNN. ML:1.8 0.00024947785 0.08 AML other m 2016-10-31T05:41:25.87
IV.T1211.HNE. ML:2.2 0.0007271292 0.096 AML other m 2016-10-31T05:41:25.91
IV.T1211.EHE. ML:2.2 0.0007228269000000001 0.096 AML other m 2016-10-31T05:41:25.91
IV.ARRO.EHE. ML:2.0 0.00043979735 0.1792 AML other m 2016-10-31T05:41:26.11
IV.ARRO.EHN. ML:1.9 0.00037659710000000003 0.16 AML other m 2016-10-31T05:41:26.25
XO.AM05.HNE. ML:1.6 0.000178658655 0.0992 AML other m 2016-10-31T05:41:26.59
IV.ASSB.HHN. ML:1.9 0.00024426415 0.1792 AML other m 2016-10-31T05:41:27.60
IV.ASSB.HHE. ML:1.8 0.00020968015 0.1376 AML other m 2016-10-31T05:41:27.63
IV.CESX.HHE. ML:1.8 0.0001918259 0.32 AML other m 2016-10-31T05:41:29.07
IV.CESX.HHN. ML:1.8 0.00021146854999999997 0.1824 AML other m 2016-10-31T05:41:30.49
IV.SNTG.HHE. ML:1.8 0.0001608109 0.1792 AML other m 2016-10-31T05:41:31.23
IV.SNTG.HNN. ML:1.8 0.00015530279 0.1888 AML other m 2016-10-31T05:41:31.95
IV.SNTG.HHN. ML:1.8 0.00013755121 0.1792 AML other m 2016-10-31T05:41:31.95
IV.ATCC.EHE. ML:1.7 0.00012426055 0.2208 AML other m 2016-10-31T05:41:32.85
IV.ATCC.EHN. ML:1.7 0.000113504735 0.3008 AML other m 2016-10-31T05:41:33.48
IV.SNTG.HNE. ML:1.8 0.0001547291 0.4 AML other m 2016-10-31T05:41:33.99
IV.FIAM.HHE. ML:1.4 0.00006157975 0.4 AML other m 2016-10-31T05:41:34.08
IV.FIAM.HHN. ML:1.6 0.00007441130499999999 0.3392 AML other m 2016-10-31T05:41:35.16
IV.OFFI.HHE. ML:2.2 0.00034535709999999995 0.8416 AML other m 2016-10-31T05:41:35.50
IV.OFFI.HHN. ML:2.2 0.00035683745 0.4992 AML other m 2016-10-31T05:41:35.89
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