Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 31-10-2016 and time 20:46:17 (UTC) in region 4 km SW Castelsantangelo sul Nera (MC)

A magnitude ML 2.4 earthquake occured in region: 4 km SW Castelsantangelo sul Nera (MC), on

  • 31-10-2016 20:46:17 (UTC)
  • 31-10-2016 21:46:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8780, 13.1140 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
Castelsantangelo sul Nera MC 4 281 281
Preci PG 6 724 1005
Visso MC 6 1107 2112
Ussita MC 8 444 2556
Norcia PG 10 4957 7513
Sellano PG 15 1079 8592
Monte Cavallo MC 16 145 8737
Bolognola MC 16 142 8879
Cerreto di Spoleto PG 17 1075 9954
Montemonaco AP 18 604 10558
Acquacanina MC 18 121 10679
Fiordimonte MC 18 202 10881
Fiastra MC 18 559 11440
Montegallo AP 18 523 11963
Arquata del Tronto AP 19 1178 13141
Pieve Torina MC 19 1458 14599
Cascia PG 19 3217 17816

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
52 Km NE of Terni (111501 inhabitants)
54 Km W of Teramo (54892 inhabitants)
63 Km NW of L'Aquila (69753 inhabitants)
64 Km E of Perugia (166134 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
97 Km NE of Viterbo (67173 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 2.4 2016-10-31
20:46:17		 42.8777 13.1138 10 2019-02-12
14:03:26		 Bollettino Sismico Italiano INGV 50913591
Reviewed
Rev100 		ML 2.4 2016-10-31
20:46:17		 42.882 13.1088 10 2016-10-31
20:51:21		 Sala Sismica INGV-Roma 31327421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-31 20:46:17 ± 0.07
Latitude 42.8777 ± 0.0036
Longitude 13.1138 ± 0.0049
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 50913591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 320
Semi-minor axis of confidence ellipse (meter) 314
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
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 72
Number of defining phases 65
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.95148
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 39
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 72
Type of magnitude ML
Reference to an origin 50913591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-10-12 10:23:50

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 31327421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-31 20:51:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BADI.EHZ. 2016-10-31T20:46:49.99 3.0 undecidable manual S 0.87 0
IV.PIEI.HHZ. 2016-10-31T20:46:43.96 0.6 undecidable manual S 328 86.7465 50 0.53 39
IV.MPAG.EHZ. 2016-10-31T20:46:43.73 0.3 undecidable manual S 341 88.1451 50 -0.09 65
IV.ATVO.HHZ. 2016-10-31T20:46:42.54 0.6 undecidable manual S 315 80.0643 50 0.88 35
IV.FRON.EHZ. 2016-10-31T20:46:41.76 0.6 undecidable manual S 336 77.6667 50 0.75 37
IV.ARVD.HHZ. 2016-10-31T20:46:39.37 3.0 undecidable manual S 349 70.1742 50 0.34 0
IV.SSFR.HHZ. 2016-10-31T20:46:38.57 0.6 undecidable manual S 337 67.4769 50 0.26 44
IV.MMUR.HNZ. 2016-10-31T20:46:38.99 3.0 undecidable manual S -0.02 0
IV.SACS.HHZ. 2016-10-31T20:46:36.67 3.0 positive manual P 1.72 0
IV.MURB.HHZ. 2016-10-31T20:46:36.72 0.3 undecidable manual S 312 64.0914 50 -0.68 58
IV.CAFI.HHZ. 2016-10-31T20:46:36.23 0.1 undecidable manual P 299 105.6165 50 0.8 68
IV.GIGS.HHZ. 2016-10-31T20:46:35.52 0.6 undecidable manual S 141 60.1953 50 -0.82 37
IV.BADI.EHZ. 2016-10-31T20:46:35.49 3.0 positive manual P 0.5 0
IV.CESX.HHZ. 2016-10-31T20:46:34.90 0.6 undecidable manual S 235 52.3032 50 0.65 40
IV.FOSV.EHZ. 2016-10-31T20:46:34.61 0.6 undecidable manual S 328 54.4011 50 -0.2 45
IV.ATCC.EHZ. 2016-10-31T20:46:34.25 0.3 undecidable manual S 312 51.4152 50 0.25 68
IV.TERO.HHZ. 2016-10-31T20:46:33.51 0.6 undecidable manual S 125 48.9177 50 0.16 46
IV.FSSB.HHZ. 2016-10-31T20:46:33.97 0.1 undecidable manual P 343 94.4388 50 0.25 83
IV.MPAG.EHZ. 2016-10-31T20:46:33.12 0.1 undecidable manual P 341 88.1451 50 0.37 82
IV.EL6.EHZ. 2016-10-31T20:46:33.93 0.6 undecidable manual S 359 50.1165 50 0.26 45
IV.T0110.HHZ. 2016-10-31T20:46:33.74 0.1 undecidable manual P 143 90.0432 50 0.71 73
IV.PIEI.HHZ. 2016-10-31T20:46:32.66 0.1 undecidable manual P 328 86.7465 50 0.13 86
IV.T1247.HHZ. 2016-10-31T20:46:32.85 0.6 undecidable manual S 163 50.616 50 -0.96 35
IV.ATPI.EHZ. 2016-10-31T20:46:32.73 0.1 undecidable manual P 318 85.7475 50 0.35 83
IV.VCEL.EHZ. 2016-10-31T20:46:32.58 3.0 negative manual P -0.2 0
IV.MGAB.HHZ. 2016-10-31T20:46:32.36 0.1 undecidable manual P 273 81.4518 50 0.64 76
IV.SNTG.HHZ. 2016-10-31T20:46:31.91 0.3 undecidable manual S 342 44.1225 50 -0.17 70
IV.FRON.EHZ. 2016-10-31T20:46:31.10 0.1 undecidable manual P 336 77.6667 50 -0.02 90
IV.ARRO.EHZ. 2016-10-31T20:46:31.05 0.3 undecidable manual S 221 43.623 50 -0.88 56
IV.ATVO.HHZ. 2016-10-31T20:46:31.52 0.1 undecidable manual P 315 80.0643 50 0.03 89
IV.T1211.EHZ. 2016-10-31T20:46:31.92 0.6 undecidable manual S 209 43.7229 50 -0.03 48
IV.PP3.EHZ. 2016-10-31T20:46:30.60 0.1 undecidable manual P 36 68.4759 50 0.89 70
IV.ASSB.HHZ. 2016-10-31T20:46:30.82 0.1 undecidable manual S 296 41.2254 50 -0.47 87
IV.GAG1.HNZ. 2016-10-31T20:46:30.94 0.3 undecidable manual S 355 40.1265 50 -0.07 71
IV.MURB.HHZ. 2016-10-31T20:46:29.04 0.1 undecidable manual P 312 64.0914 50 0 92
IV.ATFO.HHZ. 2016-10-31T20:46:29.89 0.6 undecidable manual P 321 69.7746 50 -0.02 46
IV.FIAM.HHZ. 2016-10-31T20:46:29.28 0.3 undecidable manual P 180 67.5768 50 -0.3 65
IV.ARVD.HHZ. 2016-10-31T20:46:29.98 0.1 undecidable manual P 349 70.1742 50 0 91
IV.SSFR.HHZ. 2016-10-31T20:46:29.46 0.1 undecidable manual P 337 67.4769 50 -0.11 90
IV.SEF1.HNZ. 2016-10-31T20:46:28.69 0.3 undecidable manual S 336 32.745 50 -0.35 68
IV.SMA1.EHZ. 2016-10-31T20:46:28.65 0.1 undecidable manual S 147 32.8449 50 -0.4 90
IV.T1243.HNZ. 2016-10-31T20:46:28.92 0.1 undecidable manual S 126 33.8439 50 -0.4 90
IV.GIGS.HHZ. 2016-10-31T20:46:28.74 0.1 undecidable manual P 141 60.1953 50 0.31 87
IV.TERO.HHZ. 2016-10-31T20:46:27.28 0.1 undecidable manual P 125 48.9177 50 0.58 83
IV.CESX.HHZ. 2016-10-31T20:46:27.27 0.1 undecidable manual P 235 52.3032 50 0.05 94
IV.GUMA.HHZ. 2016-10-31T20:46:27.26 0.1 undecidable manual S 41 27.2505 50 -0.31 93
IV.FOSV.EHZ. 2016-10-31T20:46:27.32 0.1 undecidable manual P 328 54.4011 50 -0.22 90
IV.CAMP.HHZ. 2016-10-31T20:46:26.41 3.0 undecidable manual P -0.49 0
IV.ATCC.EHZ. 2016-10-31T20:46:26.84 0.1 undecidable manual P 312 51.4152 50 -0.23 90
IV.T1247.HHZ. 2016-10-31T20:46:26.21 0.1 undecidable manual P 163 50.616 50 -0.76 77
IV.RM33.EHZ. 2016-10-31T20:46:26.00 0.1 undecidable manual P 169 41.7249 50 0.41 88
IV.EL6.EHZ. 2016-10-31T20:46:26.61 0.1 undecidable manual P 359 50.1165 50 -0.27 90
IV.ASSB.HHZ. 2016-10-31T20:46:25.22 0.1 undecidable manual P 296 41.2254 50 -0.3 91
IV.OFFI.HHZ. 2016-10-31T20:46:25.79 0.3 undecidable manual P 82 46.9197 50 -0.6 62
IV.T1211.EHZ. 2016-10-31T20:46:25.46 0.1 undecidable manual P 209 43.7229 50 -0.43 88
IV.GAG1.HNZ. 2016-10-31T20:46:25.24 0.1 undecidable manual P 355 40.1265 50 -0.11 95
IV.T1215.HNZ. 2016-10-31T20:46:25.84 0.1 undecidable manual S 247 21.6672 115 -0.07 98
IV.SNTG.HHZ. 2016-10-31T20:46:25.63 0.1 undecidable manual P 342 44.1225 50 -0.33 90
IV.T1243.HNZ. 2016-10-31T20:46:25.15 0.1 undecidable manual P 126 33.8439 50 0.77 79
IV.ARRO.EHZ. 2016-10-31T20:46:25.72 0.1 undecidable manual P 221 43.623 50 -0.16 93
IV.T1256.HNZ. 2016-10-31T20:46:24.13 0.6 undecidable manual S 33 16.9719 121 -0.33 47
IV.MMO1.HNZ. 2016-10-31T20:46:24.59 0.1 undecidable manual S 82 17.4714 120 -0.03 100
IV.SEF1.HNZ. 2016-10-31T20:46:24.08 0.3 undecidable manual P 336 32.745 50 -0.13 72
IV.SMA1.EHZ. 2016-10-31T20:46:24.83 0.1 undecidable manual P 147 32.8449 50 0.61 84
IV.MDAR.HNN. 2016-10-31T20:46:24.38 0.1 undecidable manual P 4 35.0427 50 -0.17 94
IV.GUMA.HHZ. 2016-10-31T20:46:23.36 0.1 undecidable manual P 41 27.2505 50 0 99
IV.T1204.EHZ. 2016-10-31T20:46:23.99 0.1 undecidable manual P 143 27.8499 50 0.55 87
IV.FEMA.HNZ. 2016-10-31T20:46:22.60 0.1 undecidable manual S 331 10.6782 133 -0.13 99
IV.T1215.HNZ. 2016-10-31T20:46:22.46 0.1 undecidable manual P 247 21.6672 115 0.05 99
IV.T1256.HNZ. 2016-10-31T20:46:21.05 0.1 undecidable manual P 33 16.9719 121 -0.52 90
IV.MMO1.HNZ. 2016-10-31T20:46:21.63 0.1 undecidable manual P 82 17.4714 120 -0.03 100
IV.FEMA.HNZ. 2016-10-31T20:46:20.71 0.1 undecidable manual P 331 10.6782 133 0.14 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FEMA.HNE. ML:3.1 0.01695 0.28 AML other m 2016-10-31T20:46:22.91
IV.FEMA.HNN. ML:2.8 0.008595 0.3 AML other m 2016-10-31T20:46:23.47
IV.T1256.HNN. ML:2.8 0.005035 0.86 AML other m 2016-10-31T20:46:24.97
IV.T1256.HHN. ML:2.7 0.004655 0.86 AML other m 2016-10-31T20:46:24.97
IV.T1256.HHE. ML:2.7 0.0047599999999999995 0.96 AML other m 2016-10-31T20:46:25.50
IV.T1256.HNE. ML:2.8 0.004849999999999999 0.96 AML other m 2016-10-31T20:46:25.50
IV.T1215.HNN. ML:2.5 0.00198 0.12 AML other m 2016-10-31T20:46:26.19
IV.T1215.HNE. ML:2.5 0.0022949999999999997 1.52 AML other m 2016-10-31T20:46:26.21
IV.GUMA.HNE. ML:2.9 0.004314999999999999 0.56 AML other m 2016-10-31T20:46:28.31
IV.GUMA.HHN. ML:3.0 0.005535 0.46 AML other m 2016-10-31T20:46:29.07
IV.GUMA.HHE. ML:2.9 0.00438 0.62 AML other m 2016-10-31T20:46:29.55
IV.GUMA.HNN. ML:3.0 0.00574 0.44 AML other m 2016-10-31T20:46:30.70
IV.ASSB.HHN. ML:2.8 0.00237 0.18 AML other m 2016-10-31T20:46:31.25
IV.T1204.EHE. ML:2.3 0.00099 0.7 AML other m 2016-10-31T20:46:31.77
IV.ASSB.HHE. ML:2.7 0.001745 0.92 AML other m 2016-10-31T20:46:31.71
IV.SMA1.EHN. ML:2.3 0.0008634999999999999 1.56 AML other m 2016-10-31T20:46:32.94
IV.SNTG.HHN. ML:2.3 0.000672 0.1 AML other m 2016-10-31T20:46:32.68
IV.SNTG.HNN. ML:2.3 0.000647 1.22 AML other m 2016-10-31T20:46:33.68
IV.SNTG.HNE. ML:2.3 0.0006955 0.84 AML other m 2016-10-31T20:46:33.68
IV.SNTG.HHE. ML:2.3 0.0006519999999999999 0.82 AML other m 2016-10-31T20:46:33.68
IV.ATCC.EHE. ML:2.6 0.0010105 0.78 AML other m 2016-10-31T20:46:34.19
IV.EL6.EHN. ML:2.7 0.0012999999999999989 0.34 AML other m 2016-10-31T20:46:34.74
IV.ATCC.EHN. ML:2.5 0.000814 0.46 AML other m 2016-10-31T20:46:34.64
IV.EL6.EHE. ML:2.7 0.0013499999999999996 0.14 AML other m 2016-10-31T20:46:35.01
IV.FOSV.EHE. ML:2.4 0.0006855 0.16 AML other m 2016-10-31T20:46:35.18
IV.FOSV.EHN. ML:2.4 0.0005865 0.36 AML other m 2016-10-31T20:46:35.62
IV.T1247.HHE. ML:2.2 0.000435 0.3 AML other m 2016-10-31T20:46:35.78
IV.SMA1.EHE. ML:2.2 0.0007889999999999999 1.52 AML other m 2016-10-31T20:46:36.89
IV.TERO.HHN. ML:2.3 0.0005325 0.28 AML other m 2016-10-31T20:46:36.25
IV.CESX.HHN. ML:2.4 0.0006580000000000001 0.62 AML other m 2016-10-31T20:46:36.82
IV.OFFI.HHE. ML:2.6 0.0010375 0.8 AML other m 2016-10-31T20:46:37.15
IV.CESX.HHE. ML:2.5 0.0007635000000000001 1.2 AML other m 2016-10-31T20:46:37.77
IV.CAMP.HHE. ML:1.8 0.00021150000000000002 1.2 AML other m 2016-10-31T20:46:37.79
IV.FIAM.HHE. ML:1.9 0.00014050000000000003 0.28 AML other m 2016-10-31T20:46:38.32
IV.TERO.HHE. ML:2.2 0.000428 0.24 AML other m 2016-10-31T20:46:38.44
IV.CAMP.HHN. ML:1.8 0.0001705 0.4 AML other m 2016-10-31T20:46:38.59
IV.T1247.HHN. ML:2.3 0.0004775 0.68 AML other m 2016-10-31T20:46:38.94
IV.GIGS.HHN. ML:1.4 0.00005599999999999999 0.32 AML other m 2016-10-31T20:46:39.56
IV.MURB.HHE. ML:2.8 0.00127 0.32 AML other m 2016-10-31T20:46:40.43
IV.SSFR.HHN. ML:2.8 0.0010215 0.18 AML other m 2016-10-31T20:46:40.62
IV.SSFR.HNN. ML:2.8 0.0011749999999999998 0.2 AML other m 2016-10-31T20:46:40.53
IV.FIAM.HHN. ML:1.8 0.00011449999999999999 0.74 AML other m 2016-10-31T20:46:40.27
IV.MURB.HHN. ML:2.8 0.0010665 0.58 AML other m 2016-10-31T20:46:40.47
IV.ARVD.HHN. ML:2.2 0.0002745 1.46 AML other m 2016-10-31T20:46:40.24
IV.ARVD.HHE. ML:2.3 0.00036050000000000003 0.12 AML other m 2016-10-31T20:46:41.02
IV.OFFI.HHN. ML:2.6 0.00106 0.42 AML other m 2016-10-31T20:46:41.10
IV.ATFO.HHE. ML:2.1 0.000223 0.72 AML other m 2016-10-31T20:46:41.24
IV.ATFO.HHN. ML:2.1 0.000227 0.96 AML other m 2016-10-31T20:46:42.68
IV.FRON.EHE. ML:2.2 0.0002135 0.12 AML other m 2016-10-31T20:46:42.62
IV.PP3.EHN. ML:2.8 0.000999 0.32 AML other m 2016-10-31T20:46:42.68
IV.PP3.EHE. ML:2.7 0.0008515 0.32 AML other m 2016-10-31T20:46:42.78
IV.FRON.EHN. ML:2.4 0.0003215 1.3 AML other m 2016-10-31T20:46:43.81
IV.SSFR.HHE. ML:2.6 0.00074 0.16 AML other m 2016-10-31T20:46:43.38
IV.SSFR.HNE. ML:2.7 0.0009580000000000001 0.18 AML other m 2016-10-31T20:46:43.38
IV.ATVO.HHE. ML:2.1 0.000168 1.44 AML other m 2016-10-31T20:46:44.21
IV.GIGS.HHE. ML:1.4 0.000056800000000000005 0.28 AML other m 2016-10-31T20:46:44.21
IV.ATVO.HHN. ML:2.0 0.0001485 1.52 AML other m 2016-10-31T20:46:45.77
IV.MPAG.EHE. ML:2.2 0.000185 1.04 AML other m 2016-10-31T20:46:46.06
IV.MPAG.EHN. ML:2.0 0.0001305 0.6 AML other m 2016-10-31T20:46:46.39
IV.PIEI.HHN. ML:2.1 0.00014150000000000002 0.26 AML other m 2016-10-31T20:46:48.29
IV.T0110.HHE. ML:2.2 0.00017549999999999998 0.94 AML other m 2016-10-31T20:46:48.56
IV.PIEI.HHE. ML:2.1 0.00015999999999999999 0.24 AML other m 2016-10-31T20:46:48.74
IV.FSSB.HHN. ML:2.7 0.000564 0.44 AML other m 2016-10-31T20:46:51.11
IV.T0110.HHN. ML:2.3 0.0002395 0.98 AML other m 2016-10-31T20:46:52.33
IV.T1204.EHN. ML:2.1 0.0007275000000000001 1.5 AML other m 2016-10-31T20:46:53.78
IV.CAFI.HHN. ML:1.8 0.0000673 0.64 AML other m 2016-10-31T20:46:53.64
IV.CAFI.HHE. ML:2.0 0.0000953 0.5 AML other m 2016-10-31T20:46:55.80
IV.SEF1.HNN. ML:2.8 0.00295 0.42 AML other m 2016-10-31T20:46:55.43
IV.SEF1.HNE. ML:2.7 0.0023635 0.7 AML other m 2016-10-31T20:47:17.44
IV.ARRO.EHN. ML:2.2 0.00047599999999999997 0.2 AML other m 2016-10-31T20:47:21.63
IV.ARRO.EHE. ML:2.2 0.00046399999999999995 0.18 AML other m 2016-10-31T20:47:21.77
IV.FSSB.HHE. ML:2.6 0.0004205 0.46 AML other m 2016-10-31T20:47:44.91
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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