Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 27-04-2017 and time 19:43:56 (Italy) in region 3 km E Norcia (PG)

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

  • 27-04-2017 17:43:56 (UTC)
  • 27-04-2017 19:43:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8010, 13.1230 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 3 4957 4957
Castelsantangelo sul Nera MC 11 281 5238
Preci PG 11 724 5962
Cascia PG 13 3217 9179
Arquata del Tronto AP 15 1178 10357
Visso MC 15 1107 11464
Accumoli RI 16 667 12131
Ussita MC 16 444 12575
Cerreto di Spoleto PG 17 1075 13650
Montegallo AP 18 523 14173
Poggiodomo PG 18 117 14290
Sellano PG 19 1079 15369

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
69 Km SE of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
97 Km W of Pescara (121014 inhabitants)
99 Km NW of Chieti (51815 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 2017-04-27
17:43:56		 42.8007 13.123 11 2019-07-19
13:21:00		 Bollettino Sismico Italiano INGV 63206001
Reviewed
Rev100 		ML 2.0 2017-04-27
17:43:56		 42.8002 13.1223 11 2017-04-27
17:51:02		 Sala Sismica INGV-Roma 44488201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-04-27 17:43:56 ± 0.03
Latitude 42.8007 ± 0.0018
Longitude 13.1230 ± 0.0025
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 63206001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 236
Semi-minor axis of confidence ellipse (meter) 140
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 70
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 33
Number of associated phases, regardless of their use for origin computation 77
Number of defining phases 75
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.85076
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 42
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 48
Type of magnitude ML
Reference to an origin 63206001
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-11-19 13:23:13

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 25
Type of magnitude ML
Reference to an origin 44488201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-04-27 17:51:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SNTG.HHZ. 2017-04-27T17:44:13.30 0.3 undecidable manual S 344 52.503 50 0.39 64
IV.CESX.HHZ. 2017-04-27T17:44:12.26 0.6 undecidable manual S 244 48.618 50 0.39 43
IV.PIEI.HHZ. 2017-04-27T17:44:12.65 0.6 undecidable manual P 330 94.4388 50 0.31 40
IV.MOMA.HHZ. 2017-04-27T17:44:11.43 0.6 undecidable manual S 271 45.0216 50 0.53 42
IV.T1222.EHZ. 2017-04-27T17:44:11.14 0.6 undecidable manual S 189 44.8218 50 0.28 44
IV.SEF1.HNN. 2017-04-27T17:44:10.06 0.3 undecidable manual S 340 40.9257 50 0.24 67
IV.TERO.HHZ. 2017-04-27T17:44:10.48 0.6 undecidable manual S 117 43.9227 50 -0.12 46
IV.T1247.HHZ. 2017-04-27T17:44:10.45 0.3 undecidable manual S 160 42.3243 50 0.27 67
IV.T0110.HHZ. 2017-04-27T17:44:10.23 0.6 undecidable manual P 140 82.8504 50 -0.33 41
IV.ARVD.HHZ. 2017-04-27T17:44:09.99 0.6 undecidable manual P 349 78.7656 50 0.06 43
IV.SSFR.HHZ. 2017-04-27T17:44:09.84 0.6 undecidable manual P 339 75.7686 50 0.38 41
IV.GUMA.HHZ. 2017-04-27T17:44:08.47 0.6 undecidable manual S 31 33.8439 50 0.56 42
IV.T1246.HHN. 2017-04-27T17:44:08.94 0.3 undecidable manual S 129 38.628 50 -0.25 67
IV.T1211.EHZ. 2017-04-27T17:44:08.80 0.3 undecidable manual S 216 36.8298 50 0.07 70
IV.FOSV.EHZ. 2017-04-27T17:44:07.32 0.6 undecidable manual P 332 62.1933 50 -0.05 45
IV.RM33.EHZ. 2017-04-27T17:44:07.64 0.3 undecidable manual S 167 33.2445 50 -0.11 70
IV.ATCC.EHZ. 2017-04-27T17:44:06.72 0.3 undecidable manual P 318 57.8976 50 0 69
IV.CESI.HHZ. 2017-04-27T17:44:06.63 0.6 undecidable manual S 322 28.749 50 0.06 48
IV.EL6.EHZ. 2017-04-27T17:44:06.94 0.6 undecidable manual P 358 58.6968 50 0.11 45
IV.T1219.HNZ. 2017-04-27T17:44:06.64 0.3 undecidable manual S 341 29.9478 50 -0.23 69
IV.T1241.EHZ. 2017-04-27T17:44:05.54 0.6 undecidable manual S 76 25.8519 50 -0.24 46
IV.T1221.HNZ. 2017-04-27T17:44:05.04 0.6 undecidable manual S 287 23.4543 50 -0.1 48
IV.SNTG.HHZ. 2017-04-27T17:44:05.79 0.3 undecidable manual P 344 52.503 50 -0.1 68
IV.OFFI.HHZ. 2017-04-27T17:44:05.91 0.6 undecidable manual P 72 48.1185 50 0.71 39
IV.T1299.EHZ. 2017-04-27T17:44:05.10 0.6 undecidable manual S 145 22.5552 50 0.19 47
IV.SMA1.EHZ. 2017-04-27T17:44:05.47 0.6 undecidable manual S 137 25.5522 50 -0.25 46
IV.FDMO.HHZ. 2017-04-27T17:44:05.65 0.6 undecidable manual S 354 26.3514 50 -0.27 46
IV.CESX.HHZ. 2017-04-27T17:44:05.21 0.6 undecidable manual P 244 48.618 50 -0.07 46
IV.ASSB.HHZ. 2017-04-27T17:44:04.84 3.0 undecidable manual P -0.15 0
IV.T1201.HNZ. 2017-04-27T17:44:04.21 0.3 undecidable manual S 147 18.9699 119 0.4 68
IV.LNSS.HHZ. 2017-04-27T17:44:04.72 0.6 undecidable manual S 197 22.9548 50 -0.29 46
IV.TERO.HHZ. 2017-04-27T17:44:04.17 0.3 undecidable manual P 117 43.9227 50 -0.38 65
IV.T1204.EHZ. 2017-04-27T17:44:04.44 0.3 undecidable manual S 131 20.9679 116 0.02 73
IV.MOMA.HHZ. 2017-04-27T17:44:04.94 0.6 undecidable manual P 271 45.0216 50 0.22 45
IV.T1222.EHZ. 2017-04-27T17:44:04.46 0.6 undecidable manual P 189 44.8218 50 -0.24 45
IV.T1247.HHZ. 2017-04-27T17:44:04.72 0.3 undecidable manual P 160 42.3243 50 0.41 65
IV.MMO1.HNZ. 2017-04-27T17:44:03.84 0.6 undecidable manual S 56 19.869 118 -0.24 47
IV.T1246.HHN. 2017-04-27T17:44:03.51 0.3 undecidable manual P 129 38.628 50 -0.23 68
IV.T1211.EHZ. 2017-04-27T17:44:03.48 0.3 undecidable manual P 216 36.8298 50 0.01 71
IV.FEMA.HNZ. 2017-04-27T17:44:03.57 0.3 undecidable manual S 342 18.87 119 -0.21 71
IV.SEF1.HNN. 2017-04-27T17:44:03.91 0.3 undecidable manual P 340 40.9257 50 -0.19 68
IV.T1217.EHZ. 2017-04-27T17:44:03.54 0.6 undecidable manual S 238 18.4704 120 -0.11 48
IV.RM33.EHZ. 2017-04-27T17:44:02.83 0.3 undecidable manual P 167 33.2445 50 -0.08 71
IV.T1219.HNZ. 2017-04-27T17:44:02.20 0.3 undecidable manual P 341 29.9478 50 -0.2 69
IV.MC2.EHZ. 2017-04-27T17:44:02.42 0.6 undecidable manual S 24 13.3755 128 0.23 47
IV.T1244.HNZ. 2017-04-27T17:44:02.94 0.3 undecidable manual S 109 15.0738 125 0.3 69
IV.T1218.EHZ. 2017-04-27T17:44:02.48 0.6 undecidable manual S 183 14.4744 126 -0.01 49
IV.CESI.HHZ. 2017-04-27T17:44:02.19 0.1 positive manual P 322 28.749 50 -0.03 96
IV.GUMA.HHZ. 2017-04-27T17:44:02.71 0.3 negative manual P 31 33.8439 50 -0.29 68
IV.ARRO.EHZ. 2017-04-27T17:44:02.93 0.6 undecidable manual P 230 38.1285 50 -0.73 39
IV.T1216.EHZ. 2017-04-27T17:44:01.82 0.6 undecidable manual S 320 13.0758 129 -0.28 47
IV.SMA1.EHZ. 2017-04-27T17:44:01.62 0.1 positive manual P 137 25.5522 50 -0.11 95
IV.FDMO.HHZ. 2017-04-27T17:44:01.74 0.1 negative manual P 354 26.3514 50 -0.11 95
IV.T1241.EHZ. 2017-04-27T17:44:01.64 0.1 positive manual P 76 25.8519 50 -0.13 94
IV.T1221.HNZ. 2017-04-27T17:44:01.33 0.3 undecidable manual P 287 23.4543 50 -0.07 72
IV.LNSS.HHZ. 2017-04-27T17:44:01.10 0.6 undecidable manual P 197 22.9548 50 -0.22 46
IV.T1256.HHZ. 2017-04-27T17:44:01.69 3.0 undecidable manual P 0.36 0
IV.T1299.EHZ. 2017-04-27T17:44:01.31 0.1 positive manual P 145 22.5552 50 0.04 97
IV.T1217.EHZ. 2017-04-27T17:44:00.54 0.1 positive manual P 238 18.4704 120 0 98
IV.T1245.HNZ. 2017-04-27T17:44:00.56 0.6 undecidable manual S 40 8.1807 142 -0.33 47
IV.MMO1.HNZ. 2017-04-27T17:44:00.64 1.0 undecidable manual P 56 19.869 118 -0.15 24
IV.T1201.HNZ. 2017-04-27T17:44:00.87 0.3 undecidable manual P 147 18.9699 119 0.24 70
IV.T1214.HNZ. 2017-04-27T17:44:00.72 0.6 undecidable manual S 123 8.2806 141 -0.21 48
IV.T1213.HNZ. 2017-04-27T17:44:00.60 0.3 undecidable manual S 178 8.3805 141 -0.34 70
IV.T1244.HNZ. 2017-04-27T17:44:00.17 0.3 undecidable manual P 109 15.0738 125 0.22 71
IV.FEMA.HNZ. 2017-04-27T17:44:00.83 0.3 undecidable manual P 342 18.87 119 0.22 70
IV.T1212.HNZ. 2017-04-27T17:44:00.74 0.6 undecidable manual S 230 8.3805 141 -0.2 48
IV.T1204.EHZ. 2017-04-27T17:44:00.96 0.3 undecidable manual P 131 20.9679 116 -0.02 73
IV.NRCA.HNZ. 2017-04-27T17:43:59.70 0.6 undecidable manual S 349 3.6963 160 -0.44 46
IV.T1212.HNZ. 2017-04-27T17:43:59.12 0.1 positive manual P 230 8.3805 141 0.15 97
IV.T1216.EHZ. 2017-04-27T17:43:59.66 1.0 undecidable manual P 320 13.0758 129 0.01 25
IV.T1245.HNZ. 2017-04-27T17:43:59.08 0.1 negative manual P 40 8.1807 142 0.13 97
IV.MC2.EHZ. 2017-04-27T17:43:59.89 0.1 negative manual P 24 13.3755 128 0.19 95
IV.T1214.HNZ. 2017-04-27T17:43:59.10 0.1 negative manual P 123 8.2806 141 0.14 97
IV.T1218.EHZ. 2017-04-27T17:43:59.92 0.6 undecidable manual P 183 14.4744 126 0.05 49
IV.T1213.HNZ. 2017-04-27T17:43:59.00 0.1 undecidable manual P 178 8.3805 141 0.03 99
IV.NRCA.HNZ. 2017-04-27T17:43:58.53 0.1 undecidable manual P 349 3.6963 160 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1212.HNE. ML:2.2 0.00243 0.22 AML other m 2017-04-27T17:44:00.86
IV.T1212.EHE. ML:2.3 0.002455 0.22 AML other m 2017-04-27T17:44:00.87
IV.T1212.EHN. ML:2.3 0.0025800000000000003 1.68 AML other m 2017-04-27T17:44:00.09
IV.T1212.HNN. ML:2.3 0.002525 1.68 AML other m 2017-04-27T17:44:00.09
IV.T1216.EHN. ML:2.3 0.001935 0.24 AML other m 2017-04-27T17:44:02.26
IV.T1216.EHE. ML:2.2 0.001785 1.04 AML other m 2017-04-27T17:44:02.20
IV.T1217.EHN. ML:2.1 0.0009225 1.76 AML other m 2017-04-27T17:44:03.93
IV.T1217.EHE. ML:1.8 0.000505 0.82 AML other m 2017-04-27T17:44:04.92
IV.LNSS.HHE. ML:2.1 0.00076 1.36 AML other m 2017-04-27T17:44:05.24
IV.T1299.EHN. ML:1.8 0.000448 1.16 AML other m 2017-04-27T17:44:05.35
IV.T1299.HNN. ML:1.9 0.000503 0.38 AML other m 2017-04-27T17:44:05.35
IV.T1299.HNE. ML:1.9 0.000498 0.46 AML other m 2017-04-27T17:44:05.93
IV.T1241.HNE. ML:2.2 0.0008209999999999999 0.16 AML other m 2017-04-27T17:44:05.87
IV.T1241.EHE. ML:2.2 0.0008060000000000001 0.14 AML other m 2017-04-27T17:44:05.87
IV.T1241.HNN. ML:2.0 0.0005365 0.28 AML other m 2017-04-27T17:44:05.91
IV.T1241.EHN. ML:2.0 0.000541 0.26 AML other m 2017-04-27T17:44:05.78
IV.T1299.EHE. ML:1.9 0.000491 1.64 AML other m 2017-04-27T17:44:06.93
IV.LNSS.HHN. ML:2.1 0.0008755 1.2 AML other m 2017-04-27T17:44:06.76
IV.FDMO.HHN. ML:1.9 0.00047599999999999997 0.18 AML other m 2017-04-27T17:44:06.39
IV.FDMO.HHE. ML:1.8 0.000357 0.54 AML other m 2017-04-27T17:44:06.45
IV.CESI.HHE. ML:1.9 0.000391 1.66 AML other m 2017-04-27T17:44:07.14
IV.CESI.HHN. ML:2.1 0.0007175 1.46 AML other m 2017-04-27T17:44:07.91
IV.RM33.EHN. ML:1.7 0.00023449999999999998 0.38 AML other m 2017-04-27T17:44:08.46
IV.RM33.EHE. ML:1.8 0.00026249999999999993 0.9 AML other m 2017-04-27T17:44:08.30
IV.GUMA.HHE. ML:2.2 0.0007244999999999999 1.54 AML other m 2017-04-27T17:44:09.11
IV.GUMA.HHN. ML:2.2 0.0007650000000000001 1.36 AML other m 2017-04-27T17:44:09.03
IV.T1211.EHE. ML:2.0 0.00041400000000000003 0.14 AML other m 2017-04-27T17:44:09.80
IV.T1211.HNN. ML:2.1 0.000484 0.24 AML other m 2017-04-27T17:44:09.84
IV.T1211.EHN. ML:2.1 0.000484 0.82 AML other m 2017-04-27T17:44:09.84
IV.T1211.HNE. ML:2.0 0.0004055 0.12 AML other m 2017-04-27T17:44:09.80
IV.TERO.HNN. ML:1.9 0.0002405 1.02 AML other m 2017-04-27T17:44:10.99
IV.TERO.HHN. ML:2.0 0.0002735 1.04 AML other m 2017-04-27T17:44:10.99
IV.TERO.HNE. ML:1.8 0.00021150000000000002 1.14 AML other m 2017-04-27T17:44:11.17
IV.TERO.HHE. ML:1.8 0.0002125 0.12 AML other m 2017-04-27T17:44:11.17
IV.T1247.HHN. ML:2.0 0.0003135 1.28 AML other m 2017-04-27T17:44:12.20
IV.T1247.HHE. ML:1.9 0.00027 0.38 AML other m 2017-04-27T17:44:12.27
IV.MOMA.HHN. ML:1.6 0.000128 0.18 AML other m 2017-04-27T17:44:12.60
IV.MOMA.HHE. ML:1.9 0.000214 0.16 AML other m 2017-04-27T17:44:13.65
IV.ASSB.HHE. ML:1.7 0.000141 0.86 AML other m 2017-04-27T17:44:13.86
IV.CESX.HHE. ML:1.7 0.000129 1.54 AML other m 2017-04-27T17:44:13.21
IV.ASSB.HHN. ML:1.7 0.000152 0.72 AML other m 2017-04-27T17:44:15.37
IV.CESX.HHN. ML:1.7 0.00014450000000000002 0.78 AML other m 2017-04-27T17:44:15.61
IV.ATCC.EHE. ML:1.8 0.000129 0.38 AML other m 2017-04-27T17:44:16.52
IV.EL6.EHE. ML:1.9 0.0001859 1.12 AML other m 2017-04-27T17:44:16.37
IV.EL6.EHN. ML:1.9 0.0001525 1 AML other m 2017-04-27T17:44:16.95
IV.ATCC.EHN. ML:1.7 0.00010135 0.68 AML other m 2017-04-27T17:44:17.58
IV.SSFR.HHN. ML:1.9 0.00011105 0.8 AML other m 2017-04-27T17:44:21.71
IV.SSFR.HHE. ML:2.0 0.0001545 0.2 AML other m 2017-04-27T17:44:23.42
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