Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 16-07-2017 and time 06:31:01 (Italy) in region 3 km SE Norcia (PG)

A magnitude ML 2.0 earthquake occured in region: 3 km SE Norcia (PG), on

  • 16-07-2017 04:31:01 (UTC)
  • 16-07-2017 06:31:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7780, 13.1210 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 3 4957 4957
Cascia PG 11 3217 8174
Preci PG 13 724 8898
Castelsantangelo sul Nera MC 13 281 9179
Accumoli RI 14 667 9846
Arquata del Tronto AP 14 1178 11024
Poggiodomo PG 17 117 11141
Cerreto di Spoleto PG 17 1075 12216
Visso MC 17 1107 13323
Cittareale RI 18 482 13805
Ussita MC 19 444 14249
Montegallo AP 19 523 14772
Monteleone di Spoleto PG 20 599 15371

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km SE of Foligno (57155 inhabitants)
46 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
53 Km NW of L'Aquila (69753 inhabitants)
70 Km SE of Perugia (166134 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km N of Tivoli (56533 inhabitants)
96 Km W of Pescara (121014 inhabitants)
98 Km W of Chieti (51815 inhabitants)
99 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 2017-07-16
04:31:01		 42.7782 13.121 12 2019-03-25
14:06:40		 Bollettino Sismico Italiano INGV 61294301
Reviewed
Rev100 		ML 2.1 2017-07-16
04:31:01		 42.7807 13.1142 12 2017-07-16
04:37:59		 Sala Sismica INGV-Roma 47940831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-07-16 04:31:01 ± 0.03
Latitude 42.7782 ± 0.0009
Longitude 13.1210 ± 0.0025
Depth (km) 12 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 61294301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 198
Semi-minor axis of confidence ellipse (meter) 49
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 253
Circular confidence region, given by single value of horizontal uncertainty (meter) 200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 48
Number of associated phases, regardless of their use for origin computation 68
Number of defining phases 62
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.89123
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 36
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 41
Type of magnitude ML
Reference to an origin 61294301
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-09-25 09:06:29

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 54
Type of magnitude ML
Reference to an origin 47940831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-07-16 04:37:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SAMA.HHZ. 2017-07-16T04:31:36.86 3.0 undecidable manual S 0.42 0
IV.MCIV.HHZ. 2017-07-16T04:31:35.34 3.0 undecidable manual S -0.87 0
IV.FOSV.EHZ. 2017-07-16T04:31:21.62 0.3 undecidable manual S 333 64.2912 91 0 68
IV.ATCC.EHZ. 2017-07-16T04:31:20.33 0.3 undecidable manual S 319 59.6958 91 -0.05 68
IV.EL6.EHZ. 2017-07-16T04:31:20.83 0.3 undecidable manual S 359 61.1943 91 0.05 68
IV.SNTG.HHZ. 2017-07-16T04:31:19.24 0.3 undecidable manual S 345 54.9006 91 0.14 67
IV.FIAM.HHZ. 2017-07-16T04:31:19.66 0.3 undecidable manual S 180 56.5989 91 0.1 67
IV.PIEI.HHZ. 2017-07-16T04:31:18.35 0.3 undecidable manual P 331 96.5256 91 0.06 63
IV.GIGS.HHZ. 2017-07-16T04:31:18.02 0.1 undecidable manual S 134 51.6039 91 -0.2 89
IV.SACS.HHZ. 2017-07-16T04:31:18.97 0.3 undecidable manual P 275 98.9232 91 0.32 59
IV.CESX.HHZ. 2017-07-16T04:31:17.09 0.3 undecidable manual S 247 47.4192 92 -0.03 70
IV.MOMA.HHZ. 2017-07-16T04:31:16.93 0.1 undecidable manual S 274 44.9217 92 0.48 84
IV.T0110.HHZ. 2017-07-16T04:31:15.80 0.3 undecidable manual P 138 81.0522 91 -0.11 65
IV.T1247.HHZ. 2017-07-16T04:31:15.30 0.3 undecidable manual S 159 40.0266 92 0.15 69
IV.ARVD.HHZ. 2017-07-16T04:31:15.95 0.3 undecidable manual P 350 81.1521 91 0.03 66
IV.ATFO.HHZ. 2017-07-16T04:31:15.80 3.0 negative manual P 0 0
IV.TERO.HHZ. 2017-07-16T04:31:15.75 0.3 undecidable manual S 113 43.0236 92 -0.18 68
IV.SSFR.HHZ. 2017-07-16T04:31:15.68 0.3 undecidable manual P 340 77.9664 91 0.25 63
IV.CAMP.HHZ. 2017-07-16T04:31:13.91 0.1 undecidable manual S 139 35.742 92 -0.08 94
IV.FOSV.EHZ. 2017-07-16T04:31:13.25 0.1 undecidable manual P 333 64.2912 91 -0.08 90
IV.FAGN.HHZ. 2017-07-16T04:31:13.80 0.3 undecidable manual P 146 68.2761 91 -0.14 66
IV.T1211.EHZ. 2017-07-16T04:31:13.69 0.1 undecidable manual S 219 34.8429 93 -0.06 96
IV.FDMO.HHZ. 2017-07-16T04:31:12.06 0.1 undecidable manual S 355 28.749 94 -0.08 95
IV.ATCC.EHZ. 2017-07-16T04:31:12.63 0.3 undecidable manual P 319 59.6958 91 0.02 68
IV.CESI.HHZ. 2017-07-16T04:31:12.67 0.1 undecidable manual S 325 30.6471 93 0.02 96
IV.EL6.EHZ. 2017-07-16T04:31:12.82 0.1 undecidable manual P 359 61.1943 91 -0.02 91
IV.T1219.EHZ. 2017-07-16T04:31:12.86 0.1 undecidable manual S 343 32.2455 93 -0.2 93
IV.FIAM.HHZ. 2017-07-16T04:31:12.06 0.1 undecidable manual P 180 56.5989 91 -0.08 91
IV.MNTP.HNZ. 2017-07-16T04:31:11.96 3.0 undecidable manual P 0
MN.AQU.HHE. 2017-07-16T04:31:11.33 0.3 undecidable manual P 154 52.503 91 -0.17 67
IV.SNTG.HHZ. 2017-07-16T04:31:11.72 0.1 undecidable manual P 345 54.9006 91 -0.15 90
IV.T1256.HHZ. 2017-07-16T04:31:11.60 0.1 undecidable manual S 19 26.751 94 0.01 97
IV.MOMA.HHZ. 2017-07-16T04:31:10.48 0.1 undecidable manual P 274 44.9217 92 0.14 91
IV.CESX.HHZ. 2017-07-16T04:31:10.67 0.3 undecidable manual P 247 47.4192 92 -0.06 70
IV.MMO1.EHZ. 2017-07-16T04:31:10.21 0.1 undecidable manual S 51 21.4674 97 0.01 98
IV.GIGS.HHZ. 2017-07-16T04:31:10.98 0.1 undecidable manual P 134 51.6039 91 -0.38 86
IV.ASSB.HHZ. 2017-07-16T04:31:10.62 3.0 negative manual P 0.01 0
IV.T1299.EHZ. 2017-07-16T04:31:10.30 0.1 undecidable manual S 140 20.6682 97 0.31 92
IV.LNSS.HHZ. 2017-07-16T04:31:09.91 0.1 undecidable manual S 199 20.5683 97 -0.04 98
IV.FEMA.HNE. 2017-07-16T04:31:09.67 0.3 undecidable manual S 344 21.1677 97 -0.46 67
IV.T1247.HHZ. 2017-07-16T04:31:09.57 0.1 undecidable manual P 159 40.0266 92 -0.02 95
IV.SEF1.HNN. 2017-07-16T04:31:09.93 0.3 undecidable manual P 341 43.2234 92 -0.15 69
IV.TERO.HHZ. 2017-07-16T04:31:09.89 0.6 undecidable manual P 113 43.0236 92 -0.15 46
IV.T1211.EHZ. 2017-07-16T04:31:08.69 0.6 positive manual P 219 34.8429 93 -0.09 47
IV.CAMP.HHZ. 2017-07-16T04:31:08.76 0.1 undecidable manual P 139 35.742 92 -0.16 93
XO.AM05.HNZ. 2017-07-16T04:31:08.00 0.3 undecidable manual P 40 29.0487 94 0.11 71
IV.T1246.HHN. 2017-07-16T04:31:08.98 0.3 undecidable manual P 125 37.2294 92 -0.18 69
IV.CESI.HHZ. 2017-07-16T04:31:08.07 0.1 negative manual P 325 30.6471 93 -0.08 96
IV.MC2.EHZ. 2017-07-16T04:31:08.89 0.3 undecidable manual S 20 15.7731 105 0.19 72
IV.T1244.EHZ. 2017-07-16T04:31:08.81 0.1 undecidable manual S 99 14.5743 109 0.41 92
IV.T1219.EHZ. 2017-07-16T04:31:08.23 0.1 negative manual P 343 32.2455 93 -0.15 94
IV.T1256.HHZ. 2017-07-16T04:31:07.54 0.1 undecidable manual P 19 26.751 94 0 97
IV.GUMA.HHZ. 2017-07-16T04:31:07.17 3.0 undecidable manual P 0
IV.FDMO.HHZ. 2017-07-16T04:31:07.74 0.1 undecidable manual P 355 28.749 94 -0.11 95
IV.T1245.HHZ. 2017-07-16T04:31:07.50 0.6 undecidable manual S 32 10.2786 126 0.13 49
IV.T1218.EHZ. 2017-07-16T04:31:07.57 0.1 undecidable manual S 182 11.9769 118 -0.2 96
IV.NRCA.HNZ. 2017-07-16T04:31:06.45 0.1 undecidable manual S 355 6.1938 145 -0.15 97
IV.MC2.EHZ. 2017-07-16T04:31:06.07 0.1 undecidable manual P 20 15.7731 105 0.2 95
IV.T1213.HNZ. 2017-07-16T04:31:06.53 0.1 undecidable manual S 176 5.8941 146 -0.04 99
IV.LNSS.HHZ. 2017-07-16T04:31:06.59 0.1 positive manual P 199 20.5683 97 0 98
IV.MMO1.EHZ. 2017-07-16T04:31:06.76 0.1 positive manual P 51 21.4674 97 0.03 98
IV.T1299.EHZ. 2017-07-16T04:31:06.76 0.1 undecidable manual P 140 20.6682 97 0.15 95
IV.FEMA.HNE. 2017-07-16T04:31:06.63 0.3 undecidable manual P 344 21.1677 97 -0.06 73
IV.T1218.EHZ. 2017-07-16T04:31:05.47 0.1 positive manual P 182 11.9769 118 0.14 97
IV.T1244.EHZ. 2017-07-16T04:31:05.97 0.1 undecidable manual P 99 14.5743 109 0.28 94
IV.T1245.HHZ. 2017-07-16T04:31:05.32 0.1 negative manual P 32 10.2786 126 0.22 96
IV.NRCA.HNZ. 2017-07-16T04:31:04.76 0.1 negative manual P 355 6.1938 145 0.1 99
IV.T1213.HNZ. 2017-07-16T04:31:04.61 0.1 undecidable manual P 176 5.8941 146 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1245.HHN. ML:2.3 0.002235 1.06 AML other m 2017-07-16T04:31:08.09
IV.T1245.HHE. ML:2.4 0.002675 0.26 AML other m 2017-07-16T04:31:08.50
IV.T1299.EHN. ML:1.6 0.0003055 0.18 AML other m 2017-07-16T04:31:10.72
IV.LNSS.HHN. ML:2.4 0.0016 0.1 AML other m 2017-07-16T04:31:10.78
IV.LNSS.HHE. ML:2.2 0.001113 0.88 AML other m 2017-07-16T04:31:10.46
IV.T1299.EHE. ML:1.7 0.000366 1 AML other m 2017-07-16T04:31:11.74
IV.T1256.HHE. ML:1.9 0.00045650000000000004 1 AML other m 2017-07-16T04:31:12.88
IV.FDMO.HHE. ML:1.9 0.000384 0.2 AML other m 2017-07-16T04:31:12.70
IV.T1256.HHN. ML:1.9 0.00046499999999999997 0.66 AML other m 2017-07-16T04:31:12.62
IV.T1219.HNE. ML:2.0 0.00038749999999999993 1.1 AML other m 2017-07-16T04:31:13.25
IV.T1219.EHE. ML:1.9 0.000371 1.1 AML other m 2017-07-16T04:31:13.25
IV.T1219.EHN. ML:2.0 0.00041500000000000006 0.88 AML other m 2017-07-16T04:31:13.74
IV.CESI.HHE. ML:1.9 0.000363 0.86 AML other m 2017-07-16T04:31:13.68
IV.T1219.HNN. ML:2.0 0.000388 0.56 AML other m 2017-07-16T04:31:13.80
IV.FDMO.HHN. ML:1.9 0.000386 1.52 AML other m 2017-07-16T04:31:13.81
IV.CESI.HHN. ML:2.0 0.000438 1.04 AML other m 2017-07-16T04:31:13.40
IV.T1211.HNE. ML:2.1 0.0005024999999999999 0.14 AML other m 2017-07-16T04:31:14.84
IV.T1211.EHE. ML:2.1 0.0005015000000000001 0.14 AML other m 2017-07-16T04:31:14.84
IV.T1211.EHN. ML:2.4 0.0009215 0.3 AML other m 2017-07-16T04:31:14.87
IV.T1211.HNN. ML:2.4 0.0009429999999999999 0.3 AML other m 2017-07-16T04:31:14.87
IV.T1247.HHN. ML:2.1 0.00042200000000000007 0.4 AML other m 2017-07-16T04:31:15.71
IV.TERO.HHN. ML:2.0 0.00033499999999999996 0.1 AML other m 2017-07-16T04:31:16.29
IV.T1247.HHE. ML:2.0 0.00032799999999999995 0.58 AML other m 2017-07-16T04:31:16.48
IV.TERO.HHE. ML:1.8 0.00022250000000000001 0.34 AML other m 2017-07-16T04:31:16.81
IV.MOMA.HHN. ML:2.0 0.00029700000000000006 0.34 AML other m 2017-07-16T04:31:17.82
IV.MOMA.HHE. ML:2.3 0.0006395 0.14 AML other m 2017-07-16T04:31:18.06
IV.ASSB.HHN. ML:1.8 0.0001865 1.04 AML other m 2017-07-16T04:31:19.08
IV.CESX.HHN. ML:1.9 0.00020700000000000002 1.56 AML other m 2017-07-16T04:31:19.11
IV.CESX.HHE. ML:1.8 0.000182 0.82 AML other m 2017-07-16T04:31:19.13
IV.ASSB.HHE. ML:1.8 0.0001855 0.52 AML other m 2017-07-16T04:31:19.34
IV.FIAM.HHE. ML:1.9 0.000186 1.64 AML other m 2017-07-16T04:31:19.12
IV.SNTG.HHE. ML:1.7 0.00011525 0.14 AML other m 2017-07-16T04:31:20.85
IV.SNTG.HHN. ML:1.7 0.0001038 0.5 AML other m 2017-07-16T04:31:21.18
IV.FIAM.HHN. ML:2.0 0.00019350000000000001 1.02 AML other m 2017-07-16T04:31:23.70
IV.FOSV.EHN. ML:1.8 0.00011 0.66 AML other m 2017-07-16T04:31:25.43
IV.ATFO.HHN. ML:1.9 0.00011449999999999999 1.58 AML other m 2017-07-16T04:31:28.14
IV.FAGN.HHN. ML:2.0 0.00016949999999999997 0.52 AML other m 2017-07-16T04:31:28.20
IV.SSFR.HHN. ML:2.1 0.000192 0.7 AML other m 2017-07-16T04:31:29.60
IV.ATFO.HHE. ML:1.8 0.00008774999999999999 0.42 AML other m 2017-07-16T04:31:29.70
IV.SSFR.HHE. ML:2.1 0.000195 0.8 AML other m 2017-07-16T04:31:29.77
IV.FAGN.HHE. ML:2.2 0.000264 1.56 AML other m 2017-07-16T04:31:30.81
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