Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 21-12-2016 and time 18:29:08 (Italy) in region 2 km W Castelsantangelo sul Nera (MC)

A magnitude ML 1.5 earthquake occured in region: 2 km W Castelsantangelo sul Nera (MC), on

  • 21-12-2016 17:29:08 (UTC)
  • 21-12-2016 18:29:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9010, 13.1320 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 2 281 281
Visso MC 5 1107 1388
Ussita MC 5 444 1832
Preci PG 8 724 2556
Norcia PG 12 4957 7513
Bolognola MC 13 142 7655
Monte Cavallo MC 15 145 7800
Acquacanina MC 15 121 7921
Fiastra MC 15 559 8480
Fiordimonte MC 16 202 8682
Montemonaco AP 16 604 9286
Sellano PG 17 1079 10365
Pieve Torina MC 17 1458 11823
Montegallo AP 18 523 12346
Montefortino FM 18 1178 13524
Pievebovigliana MC 18 866 14390
Arquata del Tronto AP 20 1178 15568
Cerreto di Spoleto PG 20 1075 16643

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
55 Km NE of Terni (111501 inhabitants)
65 Km E of Perugia (166134 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
100 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
Reviewed
Rev100 		ML 1.5 2016-12-21
17:29:08		 42.901 13.1318 9 2016-12-21
17:58:08		 Sala Sismica INGV-Roma 37349111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-12-21 17:29:08 ± 0.03
Latitude 42.9010 ± 0.0018
Longitude 13.1318 ± 0.0025
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 37349111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 159
Semi-minor axis of confidence ellipse (meter) 138
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 327
Circular confidence region, given by single value of horizontal uncertainty (meter) 160.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 37
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 39
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47664
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 21
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 37349111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-12-21 17:58:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2016-12-21T17:29:36.64 3.0 undecidable manual S 0.37 0
IV.EL6.EHZ. 2016-12-21T17:29:24.85 0.3 undecidable manual S 357 47.619 50 0.33 65
IV.RM33.EHZ. 2016-12-21T17:29:23.77 0.3 undecidable manual S 171 44.0226 50 0.2 68
IV.SNTG.HHZ. 2016-12-21T17:29:23.28 0.3 undecidable manual S 339 42.2244 50 0.19 68
IV.ASSB.HHZ. 2016-12-21T17:29:22.80 0.3 undecidable manual S 292 41.5251 50 -0.09 70
IV.LNSS.HHZ. 2016-12-21T17:29:21.08 0.3 undecidable manual S 193 33.9438 50 0.21 69
IV.T1243.HHZ. 2016-12-21T17:29:20.79 0.3 undecidable manual S 131 34.3434 50 -0.19 69
IV.SMA1.EHZ. 2016-12-21T17:29:20.89 0.3 undecidable manual S 151 34.2435 50 -0.08 71
IV.T1241.EHZ. 2016-12-21T17:29:18.05 0.3 undecidable manual S 101 24.8529 110 -0.08 72
IV.CING.HHZ. 2016-12-21T17:29:18.76 0.6 undecidable manual P 6 52.9026 50 0.01 46
IV.GUMA.HHZ. 2016-12-21T17:29:18.29 0.3 undecidable manual S 43 24.3534 111 0.31 69
IV.T1218.EHZ. 2016-12-21T17:29:18.43 0.3 undecidable manual S 183 25.6521 110 0.03 72
IV.T1215.EHZ. 2016-12-21T17:29:17.83 0.3 undecidable manual S 243 24.0537 111 -0.05 72
IV.T1211.EHZ. 2016-12-21T17:29:17.89 1.0 positive manual P 209 46.62 50 0.1 23
IV.RM33.EHZ. 2016-12-21T17:29:17.18 0.6 negative manual P 171 44.0226 50 -0.2 45
IV.CSP1.EHZ. 2016-12-21T17:29:17.02 0.3 undecidable manual S 16 21.9669 113 -0.19 71
IV.SNTG.HHZ. 2016-12-21T17:29:17.15 0.3 undecidable manual P 339 42.2244 50 0.04 70
IV.CESI.HHZ. 2016-12-21T17:29:17.20 0.3 undecidable manual S 302 21.7671 113 0.06 72
IV.TERO.HHZ. 2016-12-21T17:29:17.89 1.0 positive manual P 129 49.3173 50 -0.31 22
IV.EL6.EHZ. 2016-12-21T17:29:17.67 0.6 negative manual P 357 47.619 50 -0.26 44
IV.ASSB.HHZ. 2016-12-21T17:29:16.68 0.3 positive manual P 292 41.5251 50 -0.32 66
IV.MMO1.EHZ. 2016-12-21T17:29:15.30 0.3 undecidable manual S 91 15.873 120 0 74
IV.LNSS.HHZ. 2016-12-21T17:29:15.63 1.0 positive manual P 193 33.9438 50 -0.2 23
IV.T1243.HHZ. 2016-12-21T17:29:15.84 1.0 negative manual P 131 34.3434 50 -0.05 24
IV.SMA1.EHZ. 2016-12-21T17:29:15.88 0.6 positive manual P 151 34.2435 50 -0.01 48
IV.T1256.HHZ. 2016-12-21T17:29:14.70 0.3 undecidable manual S 33 13.9749 123 -0.04 74
IV.T1218.EHZ. 2016-12-21T17:29:14.35 0.6 negative manual P 183 25.6521 110 -0.05 48
IV.T1215.EHZ. 2016-12-21T17:29:14.11 0.1 positive manual P 243 24.0537 111 0.01 97
IV.T1241.EHZ. 2016-12-21T17:29:14.12 0.3 positive manual P 101 24.8529 110 -0.12 71
IV.GUMA.HHZ. 2016-12-21T17:29:14.26 0.1 positive manual P 43 24.3534 111 0.1 95
IV.CESI.HHZ. 2016-12-21T17:29:13.61 0.3 positive manual P 302 21.7671 113 -0.06 72
IV.T1245.HHZ. 2016-12-21T17:29:13.13 0.3 undecidable manual S 137 6.6933 144 0.24 72
IV.T1216.EHZ. 2016-12-21T17:29:13.40 0.3 undecidable manual S 263 9.2796 135 -0.06 74
IV.CSP1.EHZ. 2016-12-21T17:29:13.51 0.3 positive manual P 16 21.9669 113 -0.2 70
IV.MC2.EHZ. 2016-12-21T17:29:12.39 0.1 undecidable manual S 76 4.7952 152 -0.14 98
IV.T1256.HHZ. 2016-12-21T17:29:12.16 1.0 negative manual P 33 13.9749 123 -0.13 24
IV.MMO1.EHZ. 2016-12-21T17:29:12.63 0.1 positive manual P 91 15.873 120 0.02 98
IV.T1216.EHZ. 2016-12-21T17:29:11.67 0.1 positive manual P 263 9.2796 135 0.12 98
IV.MC2.EHZ. 2016-12-21T17:29:11.05 0.1 negative manual P 76 4.7952 152 0.03 100
IV.T1245.HHZ. 2016-12-21T17:29:11.37 0.1 negative manual P 137 6.6933 144 0.15 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASSB.HHN. ML:1.5 0.00011575040000000001 1.7664 AML other m 2016-12-21T17:29:23.17
IV.ASSB.HHE. ML:1.5 0.00010337615 3.52 AML other m 2016-12-21T17:29:25.50
IV.CSP1.EHE. ML:1.7 0.00033199999999999994 0.44 AML other m 2016-12-21T17:29:17.87
IV.CSP1.EHN. ML:1.8 0.00039200000000000004 1.6 AML other m 2016-12-21T17:29:18.86
IV.EL6.EHE. ML:1.8 0.00016060920000000002 2.0992 AML other m 2016-12-21T17:29:25.56
IV.EL6.EHN. ML:1.6 0.0001227608 0.3072 AML other m 2016-12-21T17:29:25.79
IV.RM33.EHE. ML:1.3 0.000058721589999999996 1.728 AML other m 2016-12-21T17:29:24.67
IV.SMA1.EHN. ML:1.4 0.0001116 0.44 AML other m 2016-12-21T17:29:21.13
IV.SMA1.EHE. ML:1.3 0.0000945 1.2 AML other m 2016-12-21T17:29:28.95
IV.SNTG.HHN. ML:1.1 0.00004403567 2.24 AML other m 2016-12-21T17:29:24.38
IV.SNTG.HNN. ML:1.7 0.00017867155 1.088 AML other m 2016-12-21T17:29:23.51
IV.SNTG.HNE. ML:1.7 0.00016671265000000002 4.928 AML other m 2016-12-21T17:29:25.91
IV.SNTG.HHE. ML:1.3 0.000061994795 3.0976 AML other m 2016-12-21T17:29:24.00
IV.T1215.EHE. ML:1.3 0.00011875000000000001 1.24 AML other m 2016-12-21T17:29:18.11
IV.T1215.EHN. ML:1.3 0.0001164 0.72 AML other m 2016-12-21T17:29:21.03
IV.T1215.HNE. ML:1.3 0.00012347881 4.9664 AML other m 2016-12-21T17:29:18.11
IV.T1218.EHE. ML:1.5 0.0001945 0.14 AML other m 2016-12-21T17:29:18.42
IV.T1218.EHN. ML:1.6 0.000246 0.94 AML other m 2016-12-21T17:29:18.13
IV.T1218.HNE. ML:1.6 0.00022072375 1.4208 AML other m 2016-12-21T17:29:19.20
IV.T1218.HNN. ML:1.7 0.00029609035 2.1632 AML other m 2016-12-21T17:29:19.13
IV.T1241.EHE. ML:1.5 0.000191 0.26 AML other m 2016-12-21T17:29:18.53
IV.T1241.EHN. ML:1.5 0.000183 0.12 AML other m 2016-12-21T17:29:18.28
IV.T1256.HHN. ML:1.5 0.00036350000000000005 0.2 AML other m 2016-12-21T17:29:15.24
IV.T1256.HHE. ML:1.6 0.00045599999999999997 0.26 AML other m 2016-12-21T17:29:15.23
IV.TERO.HHE. ML:1.5 0.00009125 0.42 AML other m 2016-12-21T17:29:26.61
IV.TERO.HHN. ML:1.6 0.00009800000000000001 1.02 AML other m 2016-12-21T17:29:25.31
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