Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 27-10-2016 and time 00:33:28 (UTC) in region 3 km NW Visso (MC)

A magnitude ML 2.1 earthquake occured in region: 3 km NW Visso (MC), on

  • 27-10-2016 00:33:28 (UTC)
  • 27-10-2016 02:33:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9530, 13.0760 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
Visso MC 3 1107 1107
Ussita MC 5 444 1551
Monte Cavallo MC 8 145 1696
Preci PG 9 724 2420
Castelsantangelo sul Nera MC 9 281 2701
Fiordimonte MC 10 202 2903
Pieve Torina MC 11 1458 4361
Fiastra MC 11 559 4920
Acquacanina MC 12 121 5041
Pievebovigliana MC 12 866 5907
Bolognola MC 13 142 6049
Sellano PG 14 1079 7128
Muccia MC 15 915 8043
Serravalle di Chienti MC 17 1070 9113
Norcia PG 18 4957 14070
Cerreto di Spoleto PG 20 1075 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Foligno (57155 inhabitants)
56 Km NE of Terni (111501 inhabitants)
58 Km E of Perugia (166134 inhabitants)
61 Km NW of Teramo (54892 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
82 Km SW of Ancona (100861 inhabitants)
99 Km NE of Viterbo (67173 inhabitants)
99 Km S of Fano (60888 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 2.1 2016-10-27
00:33:28		 42.9528 13.0757 10 2019-02-12
14:01:23		 Bollettino Sismico Italiano INGV 45110741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-27 00:33:28 ± 0.05
Latitude 42.9528 ± 0.0036
Longitude 13.0757 ± 0.0025
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 45110741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 363
Semi-minor axis of confidence ellipse (meter) 246
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 352
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.61873
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 18
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 45110741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-05-10 10:51:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SRES.HHZ. 2016-10-27T00:33:58.99 3.0 undecidable manual S 0.39 0
IV.TERO.HHZ. 2016-10-27T00:33:46.63 0.6 undecidable manual S 130 56.499 50 0.27 44
IV.CAMP.HHZ. 2016-10-27T00:33:45.74 0.6 undecidable manual S 149 53.6019 50 0.13 45
IV.GIGS.HHZ. 2016-10-27T00:33:40.42 1.0 undecidable manual P 144 68.6757 50 -0.28 21
IV.T1247.HHZ. 2016-10-27T00:33:39.79 0.6 undecidable manual P 162 59.5959 50 0.5 42
IV.T1217.EHZ. 2016-10-27T00:33:39.03 0.1 undecidable manual S 204 29.1486 50 -0.05 96
IV.TERO.HHZ. 2016-10-27T00:33:38.74 0.6 undecidable manual P 130 56.499 50 -0.08 46
IV.CAMP.HHZ. 2016-10-27T00:33:38.19 0.1 positive manual P 149 53.6019 50 -0.19 90
IV.OFFI.HHZ. 2016-10-27T00:33:38.74 3.0 undecidable manual P 0.74 0
IV.CESX.HHZ. 2016-10-27T00:33:38.46 0.6 undecidable manual P 226 55.2003 50 -0.16 45
IV.T1211.EHZ. 2016-10-27T00:33:37.32 1.0 undecidable manual P 201 49.9167 50 -0.49 21
IV.T1215.EHZ. 2016-10-27T00:33:37.29 0.6 undecidable manual S 225 23.754 112 -0.12 48
IV.MMO1.EHZ. 2016-10-27T00:33:36.41 0.1 undecidable manual S 106 21.2676 114 -0.2 95
IV.EL6.EHZ. 2016-10-27T00:33:36.36 0.6 negative manual P 3 41.8248 50 -0.2 46
IV.T1243.HHZ. 2016-10-27T00:33:36.79 0.6 undecidable manual P 133 41.5251 50 0.27 45
IV.T1204.EHZ. 2016-10-27T00:33:35.76 0.3 undecidable manual P 147 36.4413 50 0.03 72
IV.CESI.HHZ. 2016-10-27T00:33:34.71 0.3 undecidable manual S 293 15.0738 123 0 75
IV.T1217.EHZ. 2016-10-27T00:33:34.53 0.1 positive manual P 204 29.1486 50 -0.08 96
IV.T1215.EHZ. 2016-10-27T00:33:33.65 0.1 positive manual P 225 23.754 112 0 98
IV.MMO1.EHZ. 2016-10-27T00:33:33.12 0.1 positive manual P 106 21.2676 114 -0.07 97
IV.GUMA.HHZ. 2016-10-27T00:33:33.85 0.1 positive manual P 60 24.3534 112 0.09 96
IV.CESI.HHZ. 2016-10-27T00:33:32.20 0.1 positive manual P 293 15.0738 123 0.11 98
IV.T1245.HHZ. 2016-10-27T00:33:32.11 1.0 undecidable manual P 139 14.0748 124 0.18 24
IV.T1216.EHZ. 2016-10-27T00:33:32.94 0.3 undecidable manual S 214 8.2806 139 0.01 76
IV.T1216.EHZ. 2016-10-27T00:33:31.26 0.1 positive manual P 214 8.2806 139 0.2 97
IV.FEMA.HNZ. 2016-10-27T00:33:31.82 0.1 undecidable manual S 296 2.2977 166 -0.14 99
IV.MC2.EHZ. 2016-10-27T00:33:31.51 1.0 undecidable manual P 117 10.2786 133 0.17 24
IV.FEMA.HNZ. 2016-10-27T00:33:30.60 0.1 negative manual P 296 2.2977 166 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:2.1 0.00127016075 0.14 AML other m 2016-10-27T00:33:35.17
IV.CESI.HHN. ML:2.6 0.0037952025 0.2 AML other m 2016-10-27T00:33:35.01
IV.CESX.HHE. ML:1.9 0.00018569959999999999 0.44 AML other m 2016-10-27T00:33:48.21
IV.CESX.HHN. ML:1.9 0.00016957525000000002 0.34 AML other m 2016-10-27T00:33:48.08
IV.EL6.EHE. ML:2.0 0.00028957489999999994 0.26 AML other m 2016-10-27T00:33:54.99
IV.EL6.EHN. ML:2.0 0.000321569 0.22 AML other m 2016-10-27T00:33:43.44
IV.FEMA.HNE. ML:2.8 0.012133745 0.18 AML other m 2016-10-27T00:33:31.95
IV.FEMA.HNN. ML:2.5 0.0059219024999999995 0.11 AML other m 2016-10-27T00:33:31.88
IV.GUMA.HNE. ML:2.2 0.00090406975 0.52 AML other m 2016-10-27T00:33:40.83
IV.GUMA.HHE. ML:2.2 0.00098774125 0.64 AML other m 2016-10-27T00:33:44.52
IV.GUMA.HNN. ML:2.1 0.0008014284499999999 0.59 AML other m 2016-10-27T00:33:44.51
IV.GUMA.HHN. ML:2.2 0.00097829015 0.34 AML other m 2016-10-27T00:33:43.07
IV.OFFI.HHE. ML:2.0 0.00029606120000000004 0.26 AML other m 2016-10-27T00:33:48.74
IV.OFFI.HHN. ML:2.1 0.00033327030000000003 0.46 AML other m 2016-10-27T00:33:48.76
IV.T1204.EHN. ML:1.6 0.00016583199999999998 0.1 AML other m 2016-10-27T00:33:41.68
IV.T1204.EHE. ML:1.8 0.00027281049999999997 0.22 AML other m 2016-10-27T00:33:45.95
IV.T1215.HNN. ML:2.3 0.0013158563 0.096 AML other m 2016-10-27T00:33:37.51
IV.T1215.EHN. ML:2.3 0.001377197 0.096 AML other m 2016-10-27T00:33:37.56
IV.T1215.HNE. ML:2.0 0.0007036208000000001 0.096 AML other m 2016-10-27T00:33:37.54
IV.T1215.EHE. ML:2.0 0.0006843252500000001 0.096 AML other m 2016-10-27T00:33:37.53
IV.T1216.EHE. ML:2.5 0.004267235 0.24 AML other m 2016-10-27T00:33:33.23
IV.T1216.EHN. ML:2.4 0.0035809175 0.208 AML other m 2016-10-27T00:33:33.46
IV.T1217.EHN. ML:2.3 0.001142318 0.16 AML other m 2016-10-27T00:33:39.43
IV.T1217.HNN. ML:2.4 0.0011541915000000001 0.16 AML other m 2016-10-27T00:33:39.35
IV.T1217.HNE. ML:2.0 0.0005956203 0.128 AML other m 2016-10-27T00:33:39.20
IV.T1217.EHE. ML:2.0 0.000584988175 0.128 AML other m 2016-10-27T00:33:39.13
IV.T1247.HHN. ML:1.9 0.00016669135000000002 0.14 AML other m 2016-10-27T00:33:51.51
IV.T1247.HHE. ML:1.8 0.000136508395 0.1 AML other m 2016-10-27T00:33:50.64
IV.TERO.HHN. ML:2.0 0.0002496201 0.1 AML other m 2016-10-27T00:33:48.07
IV.TERO.HNN. ML:2.0 0.00021904032 0.1 AML other m 2016-10-27T00:33:48.07
IV.TERO.HNE. ML:1.8 0.00014820000000000276 0.12 AML other m 2016-10-27T00:33:49.58
IV.TERO.HHE. ML:1.9 0.00017448795 0.1 AML other m 2016-10-27T00:33:49.57
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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