Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 20-11-2016 and time 18:29:30 (Italy) in region 7 km S Bolognola (MC)

A magnitude ML 1.8 earthquake occured in region: 7 km S Bolognola (MC), on

  • 20-11-2016 17:29:30 (UTC)
  • 20-11-2016 18:29:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9310, 13.2380 at 24 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
Bolognola MC 7 142 142
Castelsantangelo sul Nera MC 8 281 423
Montemonaco AP 8 604 1027
Ussita MC 8 444 1471
Montefortino FM 9 1178 2649
Amandola FM 11 3629 6278
Visso MC 12 1107 7385
Acquacanina MC 12 121 7506
Montegallo AP 13 523 8029
Sarnano MC 13 3264 11293
Fiastra MC 14 559 11852
Comunanza AP 15 3166 15018
Fiordimonte MC 17 202 15220
Preci PG 17 724 15944
Gualdo MC 17 815 16759
Arquata del Tronto AP 18 1178 17937
Palmiano AP 18 196 18133
Smerillo FM 19 365 18498
Montefalcone Appennino FM 19 424 18922
Norcia PG 19 4957 23879
Pievebovigliana MC 19 866 24745
Pieve Torina MC 20 1458 26203
Monte San Martino MC 20 765 26968
Cessapalombo MC 20 512 27480

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
49 Km NW of Teramo (54892 inhabitants)
63 Km NE of Terni (111501 inhabitants)
66 Km N of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
80 Km S of Ancona (100861 inhabitants)
88 Km NW of Montesilvano (53738 inhabitants)
95 Km NW of Pescara (121014 inhabitants)
100 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
Reviewed
Rev100 		ML 1.8 2016-11-20
17:29:30		 42.9307 13.238 25 2016-11-20
17:39:24		 Sala Sismica INGV-Roma 34031521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-11-20 17:29:30 ± 0.19
Latitude 42.9307 ± 0.0090
Longitude 13.2380 ± 0.0172
Depth (km) 25 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 34031521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1391
Semi-minor axis of confidence ellipse (meter) 603
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 239
Circular confidence region, given by single value of horizontal uncertainty (meter) 1390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 55
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.51
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.85800
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 41
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 34031521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-11-20 17:39:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MRB1.HHZ. 2016-11-20T17:30:39.99 0.6 undecidable manual Sg 9.03 0
IV.TREM.HHZ. 2016-11-20T17:30:03.21 3.0 positive manual P 206.238 1.5 0
IV.T1247.HHZ. 2016-11-20T17:29:48.99 0.6 undecidable manual S -0.32 0.73
IV.FSSB.HHZ. 2016-11-20T17:29:46.33 0.3 negative manual P 336 92.4408 100 -0.14 64
IV.T0110.HHZ. 2016-11-20T17:29:46.36 1.0 negative manual P 150 89.3439 100 0.35 21
IV.PIEI.HHZ. 2016-11-20T17:29:45.04 0.6 undecidable manual P 320 87.9453 100 -0.75 36
IV.COR1.EHZ. 2016-11-20T17:29:45.46 0.3 positive manual P 346 80.1642 101 0.85 54
IV.MPAG.EHZ. 2016-11-20T17:29:45.23 0.6 negative manual P 334 86.5467 100 -0.36 41
IV.ATVO.HHZ. 2016-11-20T17:29:44.52 0.1 undecidable manual P 307 83.8494 101 -0.66 76
IV.VCEL.EHZ. 2016-11-20T17:29:44.63 1.0 negative manual P 140 77.1672 102 0.47 21
IV.FIAM.HHZ. 2016-11-20T17:29:43.93 1.0 positive manual P 188 74.1702 102 0.22 22
IV.FRON.EHZ. 2016-11-20T17:29:43.39 0.1 positive manual P 328 77.1672 102 -0.77 73
IV.ARVD.HHZ. 2016-11-20T17:29:42.20 0.1 positive manual P 339 67.377 104 -0.49 83
IV.SMA1.EHZ. 2016-11-20T17:29:42.50 0.6 undecidable manual S 167 34.2435 119 -0.71 41
IV.GIGS.HHZ. 2016-11-20T17:29:41.63 0.6 negative manual P 153 59.5959 106 0.1 47
IV.T1243.HHZ. 2016-11-20T17:29:41.44 0.6 undecidable manual S 147 31.1466 122 -1.05 36
IV.ARRO.EHZ. 2016-11-20T17:29:41.90 0.6 undecidable manual P 225 54.8007 107 1.08 34
IV.SSFR.HHZ. 2016-11-20T17:29:41.89 0.1 positive manual P 327 67.0773 104 -0.76 75
IV.ASSB.HHZ. 2016-11-20T17:29:40.35 0.3 undecidable manual P 285 48.618 110 0.43 66
IV.ATCC.EHZ. 2016-11-20T17:29:40.71 0.3 positive manual P 300 56.0994 107 -0.3 67
IV.GUMA.HHZ. 2016-11-20T17:29:40.51 0.6 undecidable manual S 28 16.6722 142 0.94 38
IV.CSP1.EHZ. 2016-11-20T17:29:40.40 0.6 undecidable manual S 351 18.0708 139 0.58 44
IV.FOSV.EHZ. 2016-11-20T17:29:40.21 0.1 positive manual P 316 55.8996 107 -0.77 76
IV.T1216.EHZ. 2016-11-20T17:29:40.45 0.6 undecidable manual S 256 18.3705 139 0.58 43
IV.CING.HHZ. 2016-11-20T17:29:40.51 0.3 undecidable manual P 356 49.5171 109 0.47 66
IV.RM33.EHZ. 2016-11-20T17:29:39.84 0.3 positive manual P 182 46.8198 111 0.18 70
IV.FDMO.HHZ. 2016-11-20T17:29:39.05 0.6 undecidable manual S 314 16.9719 141 -0.58 45
IV.EL6.EHZ. 2016-11-20T17:29:39.34 0.1 positive manual P 346 45.621 111 -0.14 94
IV.CAMP.HHZ. 2016-11-20T17:29:39.45 0.6 positive manual P 162 45.9207 111 -0.09 47
IV.TERO.HHZ. 2016-11-20T17:29:39.26 0.1 negative manual P 139 45.3213 111 -0.18 93
IV.OFFI.HHZ. 2016-11-20T17:29:39.38 0.3 positive manual P 89 36.3414 117 1.19 50
IV.SEF1.HNZ. 2016-11-20T17:29:39.34 0.6 undecidable manual S 316 33.6441 120 -3.72 2
IV.LNSS.HHZ. 2016-11-20T17:29:39.21 0.3 negative manual P 204 39.7269 115 0.55 65
IV.T1256.HHZ. 2016-11-20T17:29:38.43 0.6 undecidable manual S 353 8.4804 159 -0.05 52
IV.SNTG.HHZ. 2016-11-20T17:29:38.23 1.0 undecidable manual P 326 43.3233 113 -0.93 18
IV.NRCA.HNZ. 2016-11-20T17:29:38.83 0.6 undecidable manual S 223 14.7741 145 -0.44 47
IV.T1219.EHZ. 2016-11-20T17:29:38.89 0.3 undecidable manual S 306 23.4543 131 -1.95 32
IV.CESI.HHZ. 2016-11-20T17:29:38.10 0.1 positive manual P 287 28.2495 125 0.98 74
IV.T1241.EHZ. 2016-11-20T17:29:38.37 0.6 undecidable manual S 118 17.7711 140 -1.39 31
IV.T1218.EHZ. 2016-11-20T17:29:37.75 0.3 positive manual P 199 30.5472 122 0.34 70
IV.SEF1.HNZ. 2016-11-20T17:29:37.16 0.3 positive manual P 316 33.6441 120 -0.65 63
IV.FDMO.HHZ. 2016-11-20T17:29:37.01 0.1 undecidable manual P 314 16.9719 141 1.18 68
IV.SMA1.EHZ. 2016-11-20T17:29:37.75 0.6 undecidable manual P 167 34.2435 119 -0.15 48
IV.T1245.HHZ. 2016-11-20T17:29:37.85 0.6 undecidable manual S 206 9.1797 157 -0.7 44
IV.T1243.HHZ. 2016-11-20T17:29:37.25 0.1 negative manual P 147 31.1466 122 -0.23 95
IV.GUMA.HHZ. 2016-11-20T17:29:36.70 0.1 positive manual P 28 16.6722 142 0.9 78
IV.CSP1.EHZ. 2016-11-20T17:29:36.93 0.1 positive manual P 351 18.0708 139 0.99 75
IV.T1216.EHZ. 2016-11-20T17:29:36.77 1.0 undecidable manual P 256 18.3705 139 0.8 20
IV.MMO1.HNZ. 2016-11-20T17:29:36.90 0.6 undecidable manual S 116 7.9809 160 -1.54 29
IV.T1219.EHZ. 2016-11-20T17:29:36.93 0.3 undecidable manual P 306 23.4543 131 0.4 70
IV.T1245.HHZ. 2016-11-20T17:29:35.35 0.1 negative manual P 206 9.1797 157 0.14 100
IV.T1241.EHZ. 2016-11-20T17:29:35.59 0.1 negative manual P 118 17.7711 140 -0.32 96
IV.T1256.HHZ. 2016-11-20T17:29:35.72 0.1 positive manual P 353 8.4804 159 0.55 91
IV.NRCA.HNZ. 2016-11-20T17:29:35.97 0.6 negative manual P 223 14.7741 145 0.34 48
IV.MMO1.HNZ. 2016-11-20T17:29:34.85 0.6 undecidable manual P 116 7.9809 160 -0.29 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARRO.EHE. ML:2.1 0.000263 0.8 AML other m 2016-11-20T17:30:54.77
IV.ARRO.EHN. ML:2.0 0.000185 0.32 AML other m 2016-11-20T17:30:54.60
IV.ARVD.HHN. ML:1.4 0.0000451 1 AML other m 2016-11-20T17:29:55.34
IV.ARVD.HHE. ML:1.7 0.0000789 0.92 AML other m 2016-11-20T17:29:56.22
IV.ATCC.EHE. ML:2.1 0.00026450000000000003 0.1 AML other m 2016-11-20T17:29:46.20
IV.ATCC.EHN. ML:1.9 0.00015 0.48 AML other m 2016-11-20T17:29:46.21
IV.ATVO.HHE. ML:1.4 0.000028400000000000003 1.26 AML other m 2016-11-20T17:29:53.41
IV.ATVO.HHN. ML:1.4 0.0000309 1.54 AML other m 2016-11-20T17:30:07.04
IV.CAMP.HHE. ML:1.8 0.00014950000000000003 0.88 AML other m 2016-11-20T17:29:45.69
IV.CAMP.HHN. ML:2.0 0.000257 0.46 AML other m 2016-11-20T17:29:46.06
IV.CING.HHN. ML:1.9 0.000184 0.22 AML other m 2016-11-20T17:29:45.91
IV.CING.HHE. ML:2.0 0.00022049999999999997 0.22 AML other m 2016-11-20T17:29:50.18
IV.FIAM.HHN. ML:1.4 0.00003645 1.52 AML other m 2016-11-20T17:29:56.57
IV.FIAM.HHE. ML:1.4 0.0000385 0.28 AML other m 2016-11-20T17:29:55.47
IV.FOSV.EHE. ML:1.9 0.00015570000000000002 0.28 AML other m 2016-11-20T17:29:45.25
IV.FOSV.EHN. ML:2.2 0.00030199999999999997 0.22 AML other m 2016-11-20T17:29:45.40
IV.GIGS.HHE. ML:1.7 0.00009255 0.16 AML other m 2016-11-20T17:29:49.76
IV.GIGS.HHN. ML:1.5 0.000059149999999999994 1.42 AML other m 2016-11-20T17:29:50.30
IV.LNSS.HHN. ML:2.0 0.0002595 1.32 AML other m 2016-11-20T17:29:45.56
IV.LNSS.HHE. ML:1.6 0.00011999999999999999 0.16 AML other m 2016-11-20T17:30:51.48
IV.PIEI.HHN. ML:1.3 0.0000256 0.98 AML other m 2016-11-20T17:29:55.38
IV.PIEI.HHE. ML:1.6 0.000047799999999999996 0.38 AML other m 2016-11-20T17:29:55.88
IV.RM33.EHE. ML:2.0 0.0002495 0.18 AML other m 2016-11-20T17:29:46.82
IV.RM33.EHN. ML:1.9 0.00021 0.22 AML other m 2016-11-20T17:29:46.53
IV.T0110.HHN. ML:1.9 0.00009035 1.02 AML other m 2016-11-20T17:30:01.33
IV.T0110.HHE. ML:1.9 0.0000929 1.22 AML other m 2016-11-20T17:30:03.07
IV.T1241.EHN. ML:2.0 0.00047950000000000005 0.4 AML other m 2016-11-20T17:29:38.61
IV.T1241.EHE. ML:2.0 0.00047599999999999997 0.32 AML other m 2016-11-20T17:29:38.87
IV.T1256.HHN. ML:1.9 0.000507 0.16 AML other m 2016-11-20T17:29:38.49
IV.T1256.HHE. ML:1.9 0.0005175000000000001 0.62 AML other m 2016-11-20T17:29:39.60
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