Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 31-10-2016 and time 21:13:46 (UTC) in region 6 km E Ussita (MC)

A magnitude ML 2.0 earthquake occured in region: 6 km E Ussita (MC), on

  • 31-10-2016 21:13:46 (UTC)
  • 31-10-2016 22:13:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9400, 13.2110 at 8 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
Ussita MC 6 444 444
Bolognola MC 6 142 586
Castelsantangelo sul Nera MC 7 281 867
Visso MC 10 1107 1974
Montemonaco AP 10 604 2578
Acquacanina MC 11 121 2699
Montefortino FM 11 1178 3877
Fiastra MC 12 559 4436
Amandola FM 13 3629 8065
Sarnano MC 13 3264 11329
Montegallo AP 15 523 11852
Fiordimonte MC 15 202 12054
Preci PG 16 724 12778
Comunanza AP 17 3166 15944
Pievebovigliana MC 17 866 16810
Pieve Torina MC 18 1458 18268
Gualdo MC 18 815 19083
Monte Cavallo MC 18 145 19228
Norcia PG 19 4957 24185
Cessapalombo MC 19 512 24697
Arquata del Tronto AP 20 1178 25875

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
51 Km NW of Teramo (54892 inhabitants)
62 Km NE of Terni (111501 inhabitants)
67 Km N of L'Aquila (69753 inhabitants)
69 Km E of Perugia (166134 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
90 Km NW of Montesilvano (53738 inhabitants)
98 Km NW of Pescara (121014 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 2016-10-31
21:13:46		 42.9397 13.2113 8 2019-02-12
14:03:37		 Bollettino Sismico Italiano INGV 54025601
Reviewed
Rev100 		ML 2.3 2016-10-31
21:13:46		 42.9397 13.2032 11 2016-10-31
21:18:23		 Sala Sismica INGV-Roma 31330771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-31 21:13:46 ± 0.05
Latitude 42.9397 ± 0.0027
Longitude 13.2113 ± 0.0049
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 54025601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 326
Semi-minor axis of confidence ellipse (meter) 211
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 230
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 34
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.06745
Epicentral distance of station farthest from the epicenter (degree) 0.81658
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 54025601
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-02-19 14:30:12

ML:2.3

Field Value
Value 2.3
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 31330771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-31 21:18:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2016-10-31T21:14:08.30 0.6 undecidable manual S 341 65.6898 50 0.97 34
IV.FOSV.EHZ. 2016-10-31T21:14:04.43 0.6 undecidable manual S 317 53.7018 50 0.3 44
IV.ATCC.EHZ. 2016-10-31T21:14:04.69 0.6 undecidable manual S 301 53.7018 50 0.55 41
IV.FSSB.HHZ. 2016-10-31T21:14:03.18 0.6 undecidable manual P 337 90.6426 50 0.74 35
IV.ASSB.HHZ. 2016-10-31T21:14:02.52 0.6 undecidable manual S 284 46.3203 50 0.37 44
IV.CAMP.HHZ. 2016-10-31T21:14:02.49 0.6 undecidable manual S 160 47.619 50 -0.02 47
IV.EL6.EHZ. 2016-10-31T21:14:01.85 0.6 undecidable manual S 348 44.1225 50 0.27 45
IV.SNTG.HHZ. 2016-10-31T21:14:00.65 0.6 undecidable manual S 328 41.3253 50 -0.17 46
IV.T1215.EHZ. 2016-10-31T21:13:58.08 0.6 undecidable manual S 241 31.746 104 0.06 48
IV.ARVD.HHZ. 2016-10-31T21:13:58.99 0.3 undecidable manual P 341 65.6898 50 0.4 63
IV.T1243.HHZ. 2016-10-31T21:13:58.54 0.3 undecidable manual S 144 33.1446 103 0.06 71
IV.GIGS.HHZ. 2016-10-31T21:13:57.55 0.3 undecidable manual P 151 61.494 50 -0.4 63
IV.ARRO.EHZ. 2016-10-31T21:13:56.68 0.3 undecidable manual P 222 54.0015 50 -0.11 68
IV.FOSV.EHZ. 2016-10-31T21:13:56.43 0.3 undecidable manual P 317 53.7018 50 -0.31 65
IV.ATCC.EHZ. 2016-10-31T21:13:56.42 0.3 undecidable manual P 301 53.7018 50 -0.33 65
IV.EL6.EHZ. 2016-10-31T21:13:55.30 0.3 undecidable manual P 348 44.1225 50 0.03 71
IV.ASSB.HHZ. 2016-10-31T21:13:55.16 0.3 undecidable manual P 284 46.3203 50 -0.44 64
IV.OFFI.HHZ. 2016-10-31T21:13:55.25 0.3 undecidable manual P 91 38.5281 50 0.84 56
IV.TERO.HHZ. 2016-10-31T21:13:55.07 0.3 undecidable manual P 138 47.5191 50 -0.72 58
IV.T1244.EHZ. 2016-10-31T21:13:55.47 0.6 undecidable manual S 161 21.4674 110 0.88 38
IV.SNTG.HHZ. 2016-10-31T21:13:54.57 0.3 undecidable manual P 328 41.3253 50 -0.26 68
IV.T1220.EHN. 2016-10-31T21:13:54.84 0.6 undecidable manual S 332 21.3675 110 0.29 46
IV.CAMP.HHZ. 2016-10-31T21:13:54.95 0.3 undecidable manual P 160 47.619 50 -0.85 55
IV.T1241.EHZ. 2016-10-31T21:13:54.31 0.6 undecidable manual S 117 20.0688 112 0.16 48
IV.T1216.EHZ. 2016-10-31T21:13:53.47 0.6 undecidable manual S 251 16.5723 116 0.45 45
IV.GUMA.HHZ. 2016-10-31T21:13:53.54 0.1 undecidable manual S 36 16.9719 115 0.39 91
IV.T1217.EHZ. 2016-10-31T21:13:53.36 0.3 undecidable manual P 222 34.0437 103 -0.29 68
IV.T1243.HHZ. 2016-10-31T21:13:53.35 0.3 undecidable manual P 144 33.1446 103 -0.13 70
IV.FDMO.HHZ. 2016-10-31T21:13:52.21 0.1 undecidable manual S 317 14.6742 118 -0.24 95
IV.CSP1.EHE. 2016-10-31T21:13:52.83 0.6 undecidable manual S 358 16.872 115 -0.3 47
IV.T1215.EHZ. 2016-10-31T21:13:52.90 0.3 undecidable manual P 241 31.746 104 -0.31 68
IV.FEMA.HNE. 2016-10-31T21:13:52.39 0.6 undecidable manual S 281 13.3755 121 0.35 46
IV.NRCA.HHZ. 2016-10-31T21:13:52.34 0.3 undecidable manual S 214 14.1747 119 0.06 74
IV.T1244.EHZ. 2016-10-31T21:13:51.32 0.1 undecidable manual P 161 21.4674 110 0.09 97
IV.MMO1.HNZ. 2016-10-31T21:13:51.06 0.6 undecidable manual S 115 10.3785 127 -0.13 49
IV.T1245.HHZ. 2016-10-31T21:13:51.25 0.6 undecidable manual S 192 9.3795 130 0.33 47
XO.AM05.EHZ. 2016-10-31T21:13:51.69 0.6 undecidable manual S 70 12.1767 123 -0.02 50
IV.T1256.HHZ. 2016-10-31T21:13:50.10 0.6 undecidable manual S 9 7.4814 137 -0.34 47
IV.T1241.EHZ. 2016-10-31T21:13:50.95 0.3 undecidable manual P 117 20.0688 112 -0.03 74
IV.NRCA.HHZ. 2016-10-31T21:13:50.27 0.1 undecidable manual P 214 14.1747 119 0.37 92
IV.T1216.EHZ. 2016-10-31T21:13:50.33 0.1 undecidable manual P 251 16.5723 116 0 99
IV.CSP1.EHE. 2016-10-31T21:13:50.23 0.1 undecidable manual P 358 16.872 115 -0.16 96
IV.GUMA.HHZ. 2016-10-31T21:13:50.60 0.1 undecidable manual P 36 16.9719 115 0.2 95
IV.T1220.EHN. 2016-10-31T21:13:50.98 0.1 undecidable manual P 332 21.3675 110 -0.24 94
XO.AM05.EHZ. 2016-10-31T21:13:49.57 0.1 undecidable manual P 70 12.1767 123 0 100
IV.FDMO.HHZ. 2016-10-31T21:13:49.68 0.1 undecidable manual P 317 14.6742 118 -0.32 93
IV.MMO1.HNZ. 2016-10-31T21:13:49.19 0.1 undecidable manual P 115 10.3785 127 -0.08 99
IV.T1245.HHZ. 2016-10-31T21:13:49.28 0.1 positive manual P 192 9.3795 130 0.17 97
IV.FEMA.HNE. 2016-10-31T21:13:49.82 0.3 undecidable manual P 281 13.3755 121 0.06 74
IV.T1256.HHZ. 2016-10-31T21:13:48.50 0.1 positive manual P 9 7.4814 137 -0.34 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1256.HNE. ML:0.0 0.005957741999999999 0.1664 AML other m 2016-10-31T21:13:50.41
IV.T1256.HHN. ML:0.0 0.0097201445 0.576 AML other m 2016-10-31T21:13:50.71
IV.T1256.HNN. ML:0.0 0.007504266999999999 0.4224 AML other m 2016-10-31T21:13:51.00
IV.T1256.HHE. ML:0.0 0.0055557340000000005 0.1536 AML other m 2016-10-31T21:13:50.39
IV.CAMP.HHN. ML:0.0 0.0003272014 0.2816 AML other m 2016-10-31T21:14:02.85
IV.CAMP.HHE. ML:0.0 0.00032001105 0.3584 AML other m 2016-10-31T21:14:02.94
IV.TERO.HNN. ML:0.0 0.00035373615000000005 0.2688 AML other m 2016-10-31T21:14:05.47
IV.TERO.HNE. ML:2.3 0.0006094999999999999 1.3 AML other m 2016-10-31T21:14:16.23
XO.AM05.EHE. ML:2.6 0.00533547 0.1024 AML other m 2016-10-31T21:13:51.85
XO.AM05.HNE. ML:2.0 0.0013068965 0.0896 AML other m 2016-10-31T21:13:51.85
XO.AM05.HNN. ML:2.1 0.0016377544999999997 0.0896 AML other m 2016-10-31T21:13:51.99
XO.AM05.EHN. ML:1.7 0.0006533059500000001 0.0896 AML other m 2016-10-31T21:13:51.85
IV.FDMO.HHN. ML:2.1 0.001212808 0.3584 AML other m 2016-10-31T21:13:53.95
IV.FDMO.HHE. ML:2.0 0.0010400136 0.1536 AML other m 2016-10-31T21:13:52.68
IV.GUMA.HHE. ML:2.6 0.0040276245 0.384 AML other m 2016-10-31T21:13:56.70
IV.GUMA.HHN. ML:2.7 0.005256930000000001 0.5376 AML other m 2016-10-31T21:13:54.06
IV.GUMA.HNE. ML:2.6 0.0035949225 0.3968 AML other m 2016-10-31T21:13:56.01
IV.GUMA.HNN. ML:2.7 0.0054688965 0.5888 AML other m 2016-10-31T21:13:54.05
IV.T1241.HNE. ML:2.4 0.002018564 0.5248 AML other m 2016-10-31T21:13:55.78
IV.T1241.EHN. ML:2.1 0.0009393999499999999 0.2688 AML other m 2016-10-31T21:13:55.97
IV.T1241.EHE. ML:2.4 0.0019565275 0.5248 AML other m 2016-10-31T21:13:55.52
IV.T1241.HNN. ML:2.1 0.00089806305 0.256 AML other m 2016-10-31T21:13:56.10
IV.T1215.EHE. ML:1.6 0.000175649945 0.192 AML other m 2016-10-31T21:13:58.25
IV.T1215.HNE. ML:1.6 0.0001867065 0.0896 AML other m 2016-10-31T21:13:58.71
IV.T1215.HNN. ML:1.7 0.00022441105 0.576 AML other m 2016-10-31T21:14:06.04
IV.T1215.EHN. ML:1.5 0.00015622599999999998 0.1408 AML other m 2016-10-31T21:13:58.48
IV.T1217.HNN. ML:1.9 0.0003565092 0.3072 AML other m 2016-10-31T21:13:59.95
IV.T1217.EHE. ML:1.7 0.0002123054 0.2944 AML other m 2016-10-31T21:14:02.09
IV.T1217.EHN. ML:1.9 0.0003113438 0.2944 AML other m 2016-10-31T21:14:02.77
IV.T1217.HNE. ML:1.8 0.00024965085000000004 0.3456 AML other m 2016-10-31T21:14:03.74
IV.SNTG.HHE. ML:1.9 0.00024483945 0.2944 AML other m 2016-10-31T21:14:01.11
IV.SNTG.HNE. ML:1.9 0.0002614459 0.3072 AML other m 2016-10-31T21:14:01.13
IV.SNTG.HNN. ML:1.8 0.00023801400000000002 0.2816 AML other m 2016-10-31T21:14:03.58
IV.SNTG.HHN. ML:1.9 0.00024640050000000003 0.256 AML other m 2016-10-31T21:14:03.44
IV.TERO.HHN. ML:2.1 0.00037370565 0.2688 AML other m 2016-10-31T21:14:05.33
IV.TERO.HHE. ML:2.1 0.0003785329 0.2816 AML other m 2016-10-31T21:14:04.94
IV.ASSB.HHN. ML:2.0 0.00030548205 0.2048 AML other m 2016-10-31T21:14:04.38
IV.ASSB.HHE. ML:1.9 0.00021019200499999998 0.1664 AML other m 2016-10-31T21:14:04.85
IV.OFFI.HHN. ML:2.3 0.00073947505 0.96 AML other m 2016-10-31T21:14:11.76
IV.OFFI.HHE. ML:2.2 0.0005569568499999999 0.6272 AML other m 2016-10-31T21:14:10.52
IV.EL6.EHE. ML:2.1 0.00038074225 0.1536 AML other m 2016-10-31T21:14:02.52
IV.EL6.EHN. ML:2.1 0.00037405500000000004 0.192 AML other m 2016-10-31T21:14:05.00
IV.ATCC.EHN. ML:2.0 0.00024672969999999997 0.9856 AML other m 2016-10-31T21:14:18.98
IV.ATCC.EHE. ML:2.1 0.00031426825 0.448 AML other m 2016-10-31T21:14:10.16
IV.FOSV.EHE. ML:2.1 0.00027307730000000004 0.32 AML other m 2016-10-31T21:14:04.00
IV.FOSV.EHN. ML:2.2 0.00033986795000000004 0.2688 AML other m 2016-10-31T21:14:05.59
IV.ARRO.EHN. ML:1.7 0.00011131034 0.2432 AML other m 2016-10-31T21:14:08.73
IV.ARRO.EHE. ML:1.7 0.000111429005 0.2816 AML other m 2016-10-31T21:14:07.68
IV.GIGS.HHE. ML:1.5 0.0000680299 0.3584 AML other m 2016-10-31T21:14:09.22
IV.GIGS.HHN. ML:1.7 0.0001035419 0.1792 AML other m 2016-10-31T21:14:06.95
IV.ARVD.HHE. ML:1.8 0.00012431514999999997 0.1664 AML other m 2016-10-31T21:14:08.83
IV.ARVD.HHN. ML:1.7 0.00008578576999999999 0.192 AML other m 2016-10-31T21:14:08.90
IV.FSSB.HHE. ML:2.3 0.00023821845000000002 0.3968 AML other m 2016-10-31T21:14:20.60
IV.FSSB.HHN. ML:2.5 0.00036966415 0.64 AML other m 2016-10-31T21:14:17.52
IV.BADI.EHE. ML:1.8 0.00005560355 0.3456 AML other m 2016-10-31T21:14:18.36
IV.BADI.EHN. ML:1.9 0.00007250800000000002 0.3584 AML other m 2016-10-31T21:14:19.37
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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