Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 16-07-2018 and time 19:41:22 (Italy) in region 4 km E Norcia (PG)

A magnitude ML 2.3 earthquake occured in region: 4 km E Norcia (PG), on

  • 16-07-2018 17:41:22 (UTC)
  • 16-07-2018 19:41:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7920, 13.1430 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 4 4957 4957
Castelsantangelo sul Nera MC 12 281 5238
Arquata del Tronto AP 13 1178 6416
Preci PG 13 724 7140
Cascia PG 13 3217 10357
Accumoli RI 14 667 11024
Visso MC 16 1107 12131
Montegallo AP 17 523 12654
Ussita MC 17 444 13098
Cerreto di Spoleto PG 19 1075 14173
Poggiodomo PG 19 117 14290
Cittareale RI 19 482 14772
Montemonaco AP 19 604 15376

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
48 Km W of Teramo (54892 inhabitants)
53 Km NW of L'Aquila (69753 inhabitants)
71 Km SE of Perugia (166134 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
95 Km W of Pescara (121014 inhabitants)
96 Km NE of Tivoli (56533 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
97 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 2.3 2018-07-16
17:41:22		 42.7918 13.1432 10 2019-04-24
14:50:58		 Bollettino Sismico Italiano INGV 63633321
Reviewed
Rev100 		ML 2.3 2018-07-16
17:41:22		 42.7922 13.1438 10 2018-07-16
17:49:53		 Sala Sismica INGV-Roma 58816101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-07-16 17:41:22 ± 0.04
Latitude 42.7918 ± 0.0018
Longitude 13.1432 ± 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 63633321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 254
Semi-minor axis of confidence ellipse (meter) 145
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 71
Number of defining phases 62
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) 0.92990
Number of stations at which the event was observed 41
Number of stations from which data was used for origin computation 34
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 77
Type of magnitude ML
Reference to an origin 63633321
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-12-04 10:23:20

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 77
Type of magnitude ML
Reference to an origin 58816101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-07-16 17:49:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIUL.HHZ. 2018-07-16T17:42:00.21 3.0 undecidable manual S -2.21 0
IV.ATPI.EHZ. 2018-07-16T17:41:52.60 3.0 undecidable manual S 94.5387 1.72 0
IV.SRES.HHZ. 2018-07-16T17:41:49.20 3.0 undecidable manual S 80.4639 2.09 0
IV.CING.HHZ. 2018-07-16T17:41:43.50 0.3 undecidable manual S 4 64.8906 50 0.53 61
IV.FOSV.EHZ. 2018-07-16T17:41:43.10 0.3 undecidable manual S 331 63.7917 50 0.42 63
IV.ATCC.EHZ. 2018-07-16T17:41:42.20 0.1 undecidable manual S 317 59.7957 50 0.6 81
IV.FIAM.HHZ. 2018-07-16T17:41:41.40 0.1 undecidable manual S 182 58.0974 50 0.24 89
IV.SNTG.HHZ. 2018-07-16T17:41:40.20 0.1 undecidable manual S 342 53.9016 50 0.16 91
IV.APEC.HNZ. 2018-07-16T17:41:40.58 3.0 undecidable manual P 103.2189 0.18 0
IV.CESX.HHZ. 2018-07-16T17:41:39.30 0.3 undecidable manual S 246 49.7169 50 0.39 66
IV.GIGS.HHZ. 2018-07-16T17:41:39.10 0.3 undecidable manual S 137 51.4152 50 -0.26 67
IV.ATPI.EHZ. 2018-07-16T17:41:39.56 3.0 negative manual P 94.5387 0.49 0
IV.PIEI.HHZ. 2018-07-16T17:41:39.47 0.6 undecidable manual P 329 96.0261 50 0.17 42
IV.ASSB.HHZ. 2018-07-16T17:41:38.31 0.1 undecidable manual S -0.17 92
IV.CERT.HHZ. 2018-07-16T17:41:38.93 3.0 positive manual P 94.4388 -0.11 0
IV.FRON.EHZ. 2018-07-16T17:41:38.03 0.3 undecidable manual P 337 87.3459 50 0.08 65
IV.MOMA.HHZ. 2018-07-16T17:41:38.60 0.3 undecidable manual S 272 46.7199 50 0.5 64
IV.T0110.HHZ. 2018-07-16T17:41:37.28 0.6 undecidable manual P 140 81.0522 50 0.29 42
IV.MDAR.HNN. 2018-07-16T17:41:37.50 0.6 undecidable manual S 360 44.5221 50 -0.01 48
IV.SEF1.HNN. 2018-07-16T17:41:37.20 0.3 undecidable manual S 338 42.4242 50 0.22 69
IV.SRES.HHZ. 2018-07-16T17:41:37.03 3.0 undecidable manual P 80.4639 0.14 0
IV.ARVD.HHZ. 2018-07-16T17:41:36.83 0.6 undecidable manual P 348 80.0643 50 0 45
IV.TERO.HHZ. 2018-07-16T17:41:36.70 0.3 undecidable manual S 116 41.9247 50 -0.15 70
IV.VCEL.EHZ. 2018-07-16T17:41:36.09 0.6 undecidable manual P 127 71.9724 50 0.5 41
IV.MURB.HHZ. 2018-07-16T17:41:35.86 3.0 undecidable manual P 72.4719 0.2 0
IV.GUMA.HHZ. 2018-07-16T17:41:35.20 0.1 undecidable manual S 27 33.8439 50 0.52 87
IV.MML1.HNE. 2018-07-16T17:41:35.70 0.1 undecidable manual S 339 38.3283 50 -0.17 94
IV.CAMP.HHZ. 2018-07-16T17:41:35.00 0.1 undecidable manual S 143 35.742 50 -0.18 94
IV.PF6.EHN. 2018-07-16T17:41:35.70 0.1 undecidable manual S 6 38.628 50 -0.25 92
IV.ARRO.EHZ. 2018-07-16T17:41:35.80 0.1 undecidable manual S 233 38.7279 50 -0.19 93
IV.CSP1.EHZ. 2018-07-16T17:41:34.40 0.1 undecidable manual S 9 33.6441 50 -0.23 93
IV.RM33.EHZ. 2018-07-16T17:41:34.10 0.1 undecidable manual S 169 31.9458 50 -0.06 97
IV.CING.HHZ. 2018-07-16T17:41:34.45 0.1 undecidable manual P 4 64.8906 50 -0.05 91
IV.FOSV.EHZ. 2018-07-16T17:41:34.42 0.3 undecidable manual P 331 63.7917 50 0.09 68
IV.FIAM.HHZ. 2018-07-16T17:41:33.22 0.1 undecidable manual P 182 58.0974 50 -0.23 89
IV.ATCC.EHZ. 2018-07-16T17:41:33.71 0.1 undecidable manual P 317 59.7957 50 0.01 93
IV.CESI.HHZ. 2018-07-16T17:41:33.40 0.1 undecidable manual S 321 30.5472 50 -0.41 90
IV.GIGS.HHZ. 2018-07-16T17:41:32.03 0.1 undecidable manual P 137 51.4152 50 -0.38 87
IV.SNTG.HHZ. 2018-07-16T17:41:32.67 0.3 undecidable manual P 342 53.9016 50 -0.14 69
IV.GAG1.HNE. 2018-07-16T17:41:32.23 0.6 undecidable manual P 353 49.9167 50 0.05 47
OB.GAVE.EHZ. 2018-07-16T17:41:31.49 0.1 undecidable manual S -0.13 97
IV.SMA1.EHZ. 2018-07-16T17:41:31.80 0.1 undecidable manual S 139 23.754 113 -0.06 98
IV.T1299.HNN. 2018-07-16T17:41:31.40 0.1 undecidable manual S 147 20.868 115 0.47 90
IV.MOMA.HHZ. 2018-07-16T17:41:31.87 0.3 undecidable manual P 272 46.7199 50 0.19 69
IV.LNSS.HHZ. 2018-07-16T17:41:31.50 0.1 undecidable manual S 202 22.5552 114 0.03 99
IV.MDAR.HNN. 2018-07-16T17:41:31.32 1.0 undecidable manual P 360 44.5221 50 -0.03 24
IV.ASSB.HHZ. 2018-07-16T17:41:31.68 0.1 undecidable manual P -0.2 92
IV.CESX.HHZ. 2018-07-16T17:41:31.89 0.1 undecidable manual P 246 49.7169 50 -0.26 90
IV.TERO.HHZ. 2018-07-16T17:41:30.82 0.3 undecidable manual P 116 41.9247 50 -0.14 70
IV.MML1.HNE. 2018-07-16T17:41:30.25 0.1 undecidable manual P 339 38.3283 50 -0.15 94
IV.FEMA.HNZ. 2018-07-16T17:41:30.50 0.1 undecidable manual S 338 20.3685 116 -0.28 94
IV.ARRO.EHZ. 2018-07-16T17:41:30.34 0.1 positive manual P 233 38.7279 50 -0.13 94
IV.PF6.EHN. 2018-07-16T17:41:30.24 0.1 positive manual P 6 38.628 50 -0.21 93
IV.MMO1.EHZ. 2018-07-16T17:41:30.40 0.1 undecidable manual S 51 19.1697 117 0.01 100
IV.SEF1.HNN. 2018-07-16T17:41:30.94 0.6 undecidable manual P 338 42.4242 50 -0.1 47
IV.MTRA.EHZ. 2018-07-16T17:41:30.90 0.1 undecidable manual S 101 20.9679 115 -0.08 98
IV.CAMP.HHZ. 2018-07-16T17:41:29.85 0.1 positive manual P 143 35.742 50 -0.15 94
IV.CESI.HHZ. 2018-07-16T17:41:29.08 0.1 undecidable manual P 321 30.5472 50 -0.13 96
IV.CSP1.EHZ. 2018-07-16T17:41:29.56 0.1 positive manual P 9 33.6441 50 -0.12 95
IV.GUMA.HHZ. 2018-07-16T17:41:29.95 0.1 positive manual P 27 33.8439 50 0.24 93
IV.RM33.EHZ. 2018-07-16T17:41:29.23 0.1 positive manual P 169 31.9458 50 -0.18 94
IV.SMA1.EHZ. 2018-07-16T17:41:28.14 0.1 positive manual P 139 23.754 113 0.06 98
IV.MTRA.EHZ. 2018-07-16T17:41:27.64 0.1 undecidable manual P 101 20.9679 115 0.07 98
OB.GAVE.EHZ. 2018-07-16T17:41:27.96 0.1 positive manual P 0.03 99
IV.FEMA.HNZ. 2018-07-16T17:41:27.48 0.1 undecidable manual P 338 20.3685 116 0.02 99
IV.LNSS.HHZ. 2018-07-16T17:41:27.89 0.1 positive manual P 202 22.5552 114 0.03 99
IV.T1299.HNN. 2018-07-16T17:41:27.87 0.1 undecidable manual P 147 20.868 115 0.33 93
IV.MMO1.EHZ. 2018-07-16T17:41:27.31 0.1 positive manual P 51 19.1697 117 0.07 99
IV.NRCA.HNZ. 2018-07-16T17:41:26.50 0.1 undecidable manual S 333 5.1948 152 -0.3 96
IV.NRCA.HNZ. 2018-07-16T17:41:25.35 0.1 negative manual P 333 5.1948 152 0.19 99
IV.OFFI.HHZ. 2018-07-16T17:41:22.34 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:0.0 0.025763775000000003 0.1536 AML other m 2018-07-16T17:41:26.68
IV.NRCA.HHE. ML:0.0 0.026008155 0.1408 AML other m 2018-07-16T17:41:26.68
IV.NRCA.HHN. ML:0.0 0.03096685 0.128 AML other m 2018-07-16T17:41:26.73
IV.NRCA.HNN. ML:0.0 0.02654622 0.1152 AML other m 2018-07-16T17:41:26.73
IV.FEMA.HNE. ML:0.0 0.00282032 0.2944 AML other m 2018-07-16T17:41:30.98
IV.MTRA.HNE. ML:0.0 0.002938705 0.3456 AML other m 2018-07-16T17:41:31.27
IV.MTRA.EHE. ML:0.0 0.0031014239999999998 0.3456 AML other m 2018-07-16T17:41:31.28
IV.FEMA.HNN. ML:0.0 0.0019986830000000002 0.2176 AML other m 2018-07-16T17:41:31.84
IV.MTRA.HNN. ML:0.0 0.0028805680000000005 0.256 AML other m 2018-07-16T17:41:31.40
IV.MTRA.EHN. ML:0.0 0.00276297 0.2432 AML other m 2018-07-16T17:41:31.54
IV.LNSS.HHN. ML:0.0 0.0080716005 0.1792 AML other m 2018-07-16T17:41:31.90
IV.LNSS.HHE. ML:0.0 0.006667087 0.1536 AML other m 2018-07-16T17:41:32.04
IV.CESI.HHE. ML:0.0 0.00109948175 0.192 AML other m 2018-07-16T17:41:33.72
IV.CESI.HHN. ML:0.0 0.0016797420000000001 0.2176 AML other m 2018-07-16T17:41:34.15
IV.SMA1.EHN. ML:0.0 0.0015861485 0.6016 AML other m 2018-07-16T17:41:34.87
IV.CSP1.EHN. ML:0.0 0.00041881065 0.32 AML other m 2018-07-16T17:41:34.94
IV.RM33.HNN. ML:0.0 0.0008734077 0.1408 AML other m 2018-07-16T17:41:35.38
IV.RM33.EHN. ML:0.0 0.0008870896500000001 0.1408 AML other m 2018-07-16T17:41:35.39
IV.SMA1.EHE. ML:0.0 0.0025233179999999997 0.384 AML other m 2018-07-16T17:41:35.55
IV.RM33.HNE. ML:0.0 0.0006150742499999999 0.1664 AML other m 2018-07-16T17:41:35.49
IV.CAMP.HHN. ML:0.0 0.0003587855 0.2048 AML other m 2018-07-16T17:41:35.69
IV.CAMP.HHE. ML:0.0 0.0003831799 0.1792 AML other m 2018-07-16T17:41:35.48
IV.RM33.EHE. ML:0.0 0.00058972605 0.1536 AML other m 2018-07-16T17:41:35.50
IV.CSP1.EHE. ML:0.0 0.0005311145999999999 0.2688 AML other m 2018-07-16T17:41:37.43
IV.GUMA.HNE. ML:0.0 0.00328274 0.2304 AML other m 2018-07-16T17:41:37.35
IV.ARRO.EHN. ML:0.0 0.00099904755 0.1536 AML other m 2018-07-16T17:41:37.87
IV.ARRO.EHE. ML:0.0 0.00058679175 0.1664 AML other m 2018-07-16T17:41:38.10
IV.TERO.HHE. ML:0.0 0.00030796355 0.32 AML other m 2018-07-16T17:41:43.30
IV.MOMA.HHN. ML:0.0 0.0006911515500000001 0.3328 AML other m 2018-07-16T17:41:39.28
IV.MOMA.HNN. ML:0.0 0.000775193805 0.3456 AML other m 2018-07-16T17:41:39.28
IV.TERO.HHN. ML:0.0 0.0003459687 0.2176 AML other m 2018-07-16T17:41:39.83
IV.GIGS.HHE. ML:0.0 0.000080138875 0.1792 AML other m 2018-07-16T17:41:39.55
IV.MOMA.HHE. ML:0.0 0.0012351230000000003 0.256 AML other m 2018-07-16T17:41:39.51
IV.MOMA.HNE. ML:0.0 0.001169309 0.2816 AML other m 2018-07-16T17:41:39.39
IV.GIGS.HHN. ML:0.0 0.000053572435000000005 0.3968 AML other m 2018-07-16T17:41:46.37
IV.CESX.HHE. ML:0.0 0.00034813354999999995 0.2944 AML other m 2018-07-16T17:41:41.12
IV.SNTG.HNE. ML:0.0 0.00040472805 0.1024 AML other m 2018-07-16T17:41:41.34
IV.SNTG.HHN. ML:0.0 0.0003542194 0.1024 AML other m 2018-07-16T17:41:41.13
IV.SNTG.HNN. ML:0.0 0.00031672445 0.1024 AML other m 2018-07-16T17:41:41.08
IV.SNTG.HHE. ML:0.0 0.00040575525 0.1152 AML other m 2018-07-16T17:41:41.35
IV.CESX.HHN. ML:0.0 0.00040333395 0.2432 AML other m 2018-07-16T17:41:41.71
IV.FIAM.HHE. ML:0.0 0.00026101469999999997 0.2048 AML other m 2018-07-16T17:41:42.66
IV.FIAM.HHN. ML:0.0 0.00021557450000000001 0.1536 AML other m 2018-07-16T17:41:42.78
IV.ATCC.EHN. ML:0.0 0.00035167075000000004 0.1792 AML other m 2018-07-16T17:41:43.24
IV.ATCC.EHE. ML:0.0 0.00046933894999999997 0.1408 AML other m 2018-07-16T17:41:43.35
IV.CING.HHE. ML:0.0 0.00040748435 0.1152 AML other m 2018-07-16T17:41:44.33
IV.FOSV.EHN. ML:0.0 0.00021076384999999998 0.2816 AML other m 2018-07-16T17:41:44.53
IV.CING.HHN. ML:0.0 0.00040779865 0.128 AML other m 2018-07-16T17:41:45.13
IV.FOSV.EHE. ML:0.0 0.0001935152 0.1664 AML other m 2018-07-16T17:41:45.60
IV.VCEL.EHE. ML:0.0 0.00017615645000000003 0.3456 AML other m 2018-07-16T17:41:57.41
IV.ARVD.HHE. ML:0.0 0.00021955795 0.128 AML other m 2018-07-16T17:41:49.34
IV.ARVD.HHN. ML:0.0 0.0001148723 0.2432 AML other m 2018-07-16T17:41:49.64
IV.MURB.HNN. ML:0.0 0.0004780236 0.2304 AML other m 2018-07-16T17:41:50.29
IV.MURB.HHN. ML:0.0 0.0005588519 0.2432 AML other m 2018-07-16T17:41:50.29
IV.MURB.HHE. ML:0.0 0.0007333659 0.2304 AML other m 2018-07-16T17:41:51.49
IV.MURB.HNE. ML:0.0 0.00069721605 0.256 AML other m 2018-07-16T17:41:51.62
IV.VCEL.EHN. ML:0.0 0.00017910999999999998 0.2688 AML other m 2018-07-16T17:41:52.26
IV.SRES.HHE. ML:0.0 0.000099223165 0.3456 AML other m 2018-07-16T17:41:52.31
IV.SRES.HHN. ML:0.0 0.00014116404999999998 0.4736 AML other m 2018-07-16T17:41:52.53
IV.FRON.EHN. ML:0.0 0.0001661706 0.32 AML other m 2018-07-16T17:41:50.54
IV.T0110.HHE. ML:0.0 0.00018908365 0.3456 AML other m 2018-07-16T17:41:52.90
IV.PIEI.HHN. ML:0.0 0.000060014085000000004 0.384 AML other m 2018-07-16T17:41:54.60
IV.FRON.EHE. ML:0.0 0.00013467665 0.2176 AML other m 2018-07-16T17:41:51.23
IV.T0110.HHN. ML:0.0 0.00016652455 0.3072 AML other m 2018-07-16T17:41:57.16
IV.CERT.HHE. ML:0.0 0.00021580065000000002 0.4224 AML other m 2018-07-16T17:41:57.37
IV.PIEI.HHE. ML:0.0 0.000089623 0.256 AML other m 2018-07-16T17:41:57.38
IV.CERT.HHN. ML:0.0 0.0001491384 0.2816 AML other m 2018-07-16T17:41:58.06
IV.ATPI.EHE. ML:0.0 0.00009806666 0.4992 AML other m 2018-07-16T17:41:59.78
IV.APEC.HHE. ML:0.0 0.00011849652 0.4736 AML other m 2018-07-16T17:42:00.08
IV.ATPI.EHN. ML:0.0 0.00007973651500000001 0.4608 AML other m 2018-07-16T17:42:06.46
IV.APEC.HHN. ML:0.0 0.00009242908499999999 0.32 AML other m 2018-07-16T17:42:07.18
OB.GAVE.EHE. ML:0.0 0.0039403699999999995 0.1408 AML other m 2018-07-16T17:41:32.24
OB.GAVE.HNE. ML:0.0 0.004304644 0.1152 AML other m 2018-07-16T17:41:32.24
OB.GAVE.EHN. ML:0.0 0.0046282005000000005 0.1664 AML other m 2018-07-16T17:41:32.08
OB.GAVE.HNN. ML:0.0 0.0013213775 0.1536 AML other m 2018-07-16T17:41:32.07
IV.GUMA.HHN. ML:2.9 0.003432963 0.256 AML other m 2018-07-16T17:41:36.07
IV.GUMA.HHE. ML:2.9 0.003348567 0.3072 AML other m 2018-07-16T17:41:38.86
IV.GUMA.HNN. ML:2.9 0.0031349399999999997 0.4992 AML other m 2018-07-16T17:41:37.77
IV.TERO.HNN. ML:1.8 0.0001849778 0.2944 AML other m 2018-07-16T17:41:39.22
IV.ASSB.HHE. ML:2.4 0.000684874 0.2048 AML other m 2018-07-16T17:41:40.18
IV.ASSB.HHN. ML:2.3 0.0005670018999999999 0.1792 AML other m 2018-07-16T17:41:40.17
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