Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 31-10-2016 and time 00:33:46 (Italy) in region 6 km E Norcia (PG)

A magnitude ML 1.9 earthquake occured in region: 6 km E Norcia (PG), on

  • 30-10-2016 23:33:46 (UTC)
  • 31-10-2016 00:33:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7870, 13.1700 at 9 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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
Arquata del Tronto AP 11 1178 6135
Accumoli RI 12 667 6802
Castelsantangelo sul Nera MC 12 281 7083
Montegallo AP 15 523 7606
Preci PG 15 724 8330
Cascia PG 15 3217 11547
Visso MC 17 1107 12654
Ussita MC 18 444 13098
Montemonaco AP 18 604 13702
Cittareale RI 19 482 14184
Acquasanta Terme AP 20 2916 17100
Amatrice RI 20 2657 19757

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
46 Km W of Teramo (54892 inhabitants)
50 Km NE of Terni (111501 inhabitants)
52 Km NW of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
93 Km W of Pescara (121014 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km NW of Chieti (51815 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
96 Km NE of Tivoli (56533 inhabitants)
97 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 1.9 2016-10-30
23:33:46		 42.7868 13.1705 9 2019-02-12
14:03:25		 Bollettino Sismico Italiano INGV 48767411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-30 23:33:46 ± 0.05
Latitude 42.7868 ± 0.0027
Longitude 13.1705 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 48767411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 346
Semi-minor axis of confidence ellipse (meter) 183
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 102
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 44
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.07105
Epicentral distance of station farthest from the epicenter (degree) 0.89393
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 48767411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-08-07 07:52:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPAG.EHZ. 2016-10-30T23:34:04.10 0.3 undecidable manual P 341 99.2229 50 0.45 58
IV.T0110.HHZ. 2016-10-30T23:34:00.55 0.6 undecidable manual P 141 79.2651 50 -0.03 44
IV.ARRO.EHZ. 2016-10-30T23:34:00.16 0.6 undecidable manual S 235 40.2264 50 -0.16 46
IV.PP3.EHZ. 2016-10-30T23:34:00.93 0.3 undecidable manual P 28 74.5698 50 1.07 48
IV.T1211.EHZ. 2016-10-30T23:33:59.87 0.6 undecidable manual S 223 38.1285 50 0.11 47
IV.FAGN.HHZ. 2016-10-30T23:33:59.18 0.3 undecidable manual P 150 66.9774 50 0.49 62
IV.CAMP.HHE. 2016-10-30T23:33:58.14 0.6 undecidable manual S 145 33.9438 50 -0.5 43
IV.T1246.HHN. 2016-10-30T23:33:58.37 0.6 undecidable manual S 131 34.6431 50 -0.46 44
IV.GUMA.HNN. 2016-10-30T23:33:58.81 0.6 undecidable manual S 24 33.4443 50 0.32 45
IV.RM33.EHZ. 2016-10-30T23:33:57.49 0.6 undecidable manual S 173 31.0467 50 -0.36 45
XO.AM05.EHZ. 2016-10-30T23:33:56.36 0.6 undecidable manual S 35 25.8519 110 0.11 48
IV.FIAM.HHZ. 2016-10-30T23:33:56.99 0.3 undecidable manual P 184 57.6978 50 -0.27 66
IV.T1256.HHZ. 2016-10-30T23:33:55.57 0.6 undecidable manual S 10 24.753 111 -0.34 46
IV.OFFI.HHZ. 2016-10-30T23:33:55.96 0.1 undecidable manual P 68 45.0216 50 0.66 80
IV.T1243.HHZ. 2016-10-30T23:33:55.42 0.6 undecidable manual S 114 24.753 111 -0.48 44
IV.T1241.EHZ. 2016-10-30T23:33:55.24 0.6 undecidable manual S 70 22.5552 112 0.04 49
IV.T1215.EHZ. 2016-10-30T23:33:55.64 0.6 undecidable manual S 274 24.6531 111 -0.23 47
IV.LNSS.HHZ. 2016-10-30T23:33:55.64 0.6 undecidable manual S 208 22.9548 112 0.3 46
IV.T1217.EHZ. 2016-10-30T23:33:54.83 0.6 undecidable manual S 247 21.1677 114 0.07 49
IV.T1299.HNN. 2016-10-30T23:33:54.49 0.6 undecidable manual S 152 19.2696 116 0.35 46
IV.T1211.EHZ. 2016-10-30T23:33:54.20 0.3 undecidable manual P 223 38.1285 50 -0.05 71
IV.ARRO.EHZ. 2016-10-30T23:33:54.50 0.3 undecidable manual P 235 40.2264 50 -0.07 71
IV.T1204.EHZ. 2016-10-30T23:33:53.64 0.6 undecidable manual S 136 17.0718 119 0.15 48
IV.GUMA.HNN. 2016-10-30T23:33:53.57 0.1 undecidable manual P 24 33.4443 50 0.05 96
IV.CAMP.HHE. 2016-10-30T23:33:53.21 0.1 undecidable manual P 145 33.9438 50 -0.39 89
IV.T1216.EHZ. 2016-10-30T23:33:53.26 0.6 undecidable manual S 313 16.872 119 -0.16 48
IV.MMO1.HNZ. 2016-10-30T23:33:53.38 0.6 undecidable manual S 45 17.7711 118 -0.32 46
IV.T1201.HNN. 2016-10-30T23:33:53.57 0.6 undecidable manual S 155 15.7731 121 0.48 45
IV.T1246.HHN. 2016-10-30T23:33:53.24 0.3 undecidable manual P 131 34.6431 50 -0.47 66
XO.AM05.EHZ. 2016-10-30T23:33:52.18 0.3 undecidable manual P 35 25.8519 110 -0.05 73
IV.RM33.EHZ. 2016-10-30T23:33:52.95 0.3 undecidable manual P 173 31.0467 50 -0.2 70
IV.LNSS.HHZ. 2016-10-30T23:33:51.75 0.3 undecidable manual P 208 22.9548 112 0.05 73
IV.T1256.HHZ. 2016-10-30T23:33:51.78 0.1 undecidable manual P 10 24.753 111 -0.25 93
IV.T1217.EHZ. 2016-10-30T23:33:51.39 0.1 undecidable manual P 247 21.1677 114 0.03 98
IV.T1243.HHZ. 2016-10-30T23:33:51.80 0.3 undecidable manual P 114 24.753 111 -0.23 70
IV.T1299.HNN. 2016-10-30T23:33:51.21 0.1 undecidable manual P 152 19.2696 116 0.2 95
IV.T1241.EHZ. 2016-10-30T23:33:51.72 0.1 undecidable manual P 70 22.5552 112 0.1 97
IV.T1215.EHZ. 2016-10-30T23:33:51.98 0.3 undecidable manual P 274 24.6531 111 -0.03 73
IV.MMO1.HNZ. 2016-10-30T23:33:50.64 0.1 undecidable manual P 45 17.7711 118 -0.12 97
IV.T1201.HNN. 2016-10-30T23:33:50.70 0.1 undecidable manual P 155 15.7731 121 0.3 94
IV.T1204.EHZ. 2016-10-30T23:33:50.69 0.3 undecidable manual P 136 17.0718 119 0.06 74
IV.T1245.HHZ. 2016-10-30T23:33:50.52 0.6 undecidable manual S 10 7.881 140 -0.44 46
IV.T1216.EHZ. 2016-10-30T23:33:50.61 0.3 undecidable manual P 313 16.872 119 0.02 74
IV.T1245.HHZ. 2016-10-30T23:33:49.12 0.1 undecidable manual P 10 7.881 140 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
XO.AM05.HNE. ML:1.7 0.00029109755 0.1152 AML other m 2016-10-30T23:33:57.43
XO.AM05.HNN. ML:1.6 0.0002174004 0.0896 AML other m 2016-10-30T23:33:57.44
XO.AM05.EHN. ML:1.2 0.00008806519 0.0896 AML other m 2016-10-30T23:33:57.25
XO.AM05.EHE. ML:2.4 0.0014578090000000002 0.1024 AML other m 2016-10-30T23:33:57.49
IV.ARRO.EHN. ML:1.6 0.0001372956 0.2304 AML other m 2016-10-30T23:34:02.16
IV.ARRO.EHE. ML:1.6 0.00014659824999999999 0.2048 AML other m 2016-10-30T23:34:02.76
IV.FAGN.HHN. ML:1.9 0.0001447951 0.384 AML other m 2016-10-30T23:34:12.88
IV.FAGN.HHE. ML:1.8 0.00010654518 0.2304 AML other m 2016-10-30T23:34:10.88
IV.FIAM.HHN. ML:1.5 0.00007654761499999999 0.2304 AML other m 2016-10-30T23:34:05.82
IV.FIAM.HHE. ML:1.7 0.00010490272 0.2176 AML other m 2016-10-30T23:34:05.75
IV.FSSB.HHE. ML:2.0 0.00009654109999999999 0.3584 AML other m 2016-10-30T23:34:23.87
IV.FSSB.HHN. ML:1.9 0.000078877785 0.2944 AML other m 2016-10-30T23:34:20.50
IV.LNSS.HHE. ML:2.0 0.000643733 0.1664 AML other m 2016-10-30T23:33:55.89
IV.LNSS.HHN. ML:2.5 0.0020144535 0.1408 AML other m 2016-10-30T23:33:56.12
IV.MPAG.EHE. ML:1.6 0.00004486173 0.2944 AML other m 2016-10-30T23:34:18.76
IV.MPAG.EHN. ML:1.6 0.00004058104 0.2944 AML other m 2016-10-30T23:34:18.91
IV.OFFI.HHE. ML:2.0 0.00033339649999999997 0.2176 AML other m 2016-10-30T23:34:05.88
IV.OFFI.HHN. ML:2.0 0.0003209887 0.2176 AML other m 2016-10-30T23:34:04.03
IV.PP3.HNN. ML:2.4 0.00037082989999999996 0.6272 AML other m 2016-10-30T23:34:14.22
IV.PP3.EHN. ML:2.2 0.0002379828 0.32 AML other m 2016-10-30T23:34:13.43
IV.RM33.HNE. ML:2.0 0.00044007205 0.1664 AML other m 2016-10-30T23:33:59.21
IV.RM33.EHN. ML:1.9 0.00040102590000000004 0.256 AML other m 2016-10-30T23:33:57.72
IV.RM33.HNN. ML:2.0 0.00041817570000000004 0.256 AML other m 2016-10-30T23:33:57.85
IV.RM33.EHE. ML:2.0 0.00042489485000000006 0.1536 AML other m 2016-10-30T23:33:59.13
IV.T0110.HHE. ML:1.8 0.00007942916499999999 0.6144 AML other m 2016-10-30T23:34:17.54
IV.T0110.HHN. ML:1.8 0.00008866178 0.2816 AML other m 2016-10-30T23:34:13.88
IV.T1204.EHN. ML:1.7 0.00048059115000000004 0.1536 AML other m 2016-10-30T23:33:55.21
IV.T1204.EHE. ML:1.9 0.0007158999300000001 0.2304 AML other m 2016-10-30T23:33:55.14
IV.T1211.HNE. ML:2.1 0.00048852835 0.1152 AML other m 2016-10-30T23:34:00.76
IV.T1211.EHE. ML:2.1 0.0005103985000000002 0.1152 AML other m 2016-10-30T23:34:00.70
IV.T1211.HNN. ML:2.3 0.00076373985 0.128 AML other m 2016-10-30T23:34:00.33
IV.T1211.EHN. ML:2.3 0.00075885225 0.128 AML other m 2016-10-30T23:34:00.40
IV.T1215.HNE. ML:1.6 0.00022478057999999999 0.0896 AML other m 2016-10-30T23:33:55.75
IV.T1215.EHN. ML:1.6 0.00023382950000000013 0.064 AML other m 2016-10-30T23:33:55.76
IV.T1215.HNN. ML:1.6 0.0002343885 0.064 AML other m 2016-10-30T23:33:55.76
IV.T1215.EHE. ML:1.6 0.00022078075000000002 0.0896 AML other m 2016-10-30T23:33:55.71
IV.T1217.EHE. ML:1.6 0.000300701 0.1024 AML other m 2016-10-30T23:33:56.45
IV.T1217.HNE. ML:1.6 0.00031550385200000003 0.0896 AML other m 2016-10-30T23:33:56.49
IV.T1217.EHN. ML:1.9 0.000581108595 0.0896 AML other m 2016-10-30T23:33:55.43
IV.T1217.HNN. ML:1.9 0.00058924065 0.0896 AML other m 2016-10-30T23:33:55.39
IV.T1241.EHN. ML:2.0 0.0007479168999999999 0.1152 AML other m 2016-10-30T23:33:55.39
IV.T1241.EHE. ML:2.0 0.0006220354 0.1536 AML other m 2016-10-30T23:33:55.47
IV.T1245.HHE. ML:2.6 0.005531397 0.1792 AML other m 2016-10-30T23:33:51.80
IV.T1245.HHN. ML:2.7 0.0071221905 0.1792 AML other m 2016-10-30T23:33:51.11
IV.T1256.HHN. ML:2.0 0.0005734397 0.1024 AML other m 2016-10-30T23:33:56.95
IV.T1256.HNN. ML:2.0 0.0006074113 0.1024 AML other m 2016-10-30T23:33:56.96
IV.T1256.HHE. ML:2.1 0.0008006873999999999 0.2304 AML other m 2016-10-30T23:33:56.51
IV.T1256.HNE. ML:2.1 0.0007937484500000001 0.2176 AML other m 2016-10-30T23:33:56.40
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