Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 27-10-2016 and time 00:07:41 (UTC) in region 4 km E Preci (PG)

A magnitude ML 1.7 earthquake occured in region: 4 km E Preci (PG), on

  • 27-10-2016 00:07:41 (UTC)
  • 27-10-2016 02:07:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8750, 13.0860 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
Preci PG 4 724 724
Castelsantangelo sul Nera MC 6 281 1005
Visso MC 6 1107 2112
Ussita MC 9 444 2556
Norcia PG 9 4957 7513
Sellano PG 13 1079 8592
Monte Cavallo MC 15 145 8737
Cerreto di Spoleto PG 15 1075 9812
Bolognola MC 18 142 9954
Fiordimonte MC 18 202 10156
Cascia PG 18 3217 13373
Acquacanina MC 19 121 13494
Fiastra MC 19 559 14053
Pieve Torina MC 19 1458 15511
Montemonaco AP 20 604 16115

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
56 Km W of Teramo (54892 inhabitants)
62 Km E of Perugia (166134 inhabitants)
64 Km NW of L'Aquila (69753 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
96 Km W of Montesilvano (53738 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 1.7 2016-10-27
00:07:41		 42.8752 13.0858 11 2019-02-12
14:01:23		 Bollettino Sismico Italiano INGV 45201751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-27 00:07:41 ± 0.06
Latitude 42.8752 ± 0.0045
Longitude 13.0858 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 45201751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 541
Semi-minor axis of confidence ellipse (meter) 319
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 356
Circular confidence region, given by single value of horizontal uncertainty (meter) 540.0
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 27
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41369
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 45201751
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-05-12 13:14:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PESA.HHZ. 2016-10-27T00:08:04.31 3.0 positive manual P 0.2 0
IV.FIAM.HHZ. 2016-10-27T00:08:03.99 3.0 undecidable manual S -1.09 0
IV.SNTG.HHZ. 2016-10-27T00:07:56.99 3.0 undecidable manual S -1.6 0
IV.T1211.EHZ. 2016-10-27T00:07:56.99 3.0 undecidable manual S -0.65 0
IV.T1241.EHZ. 2016-10-27T00:07:51.70 0.3 undecidable manual S 94 28.1496 50 -0.34 68
IV.TERO.HHZ. 2016-10-27T00:07:51.31 3.0 undecidable manual P -0.71 0
IV.CAMP.HHZ. 2016-10-27T00:07:50.67 1.0 positive manual P 145 45.9207 50 0.16 23
IV.MMO1.EHZ. 2016-10-27T00:07:49.51 0.3 undecidable manual S 82 19.7691 118 -0.18 71
IV.GUMA.HHZ. 2016-10-27T00:07:48.18 0.1 positive manual P 44 29.0487 50 0.28 91
IV.T1299.HNZ. 2016-10-27T00:07:48.51 0.3 undecidable manual P 149 31.1466 50 0.28 68
IV.LNSS.HHZ. 2016-10-27T00:07:48.21 1.0 positive manual P 187 30.4473 50 0.09 24
IV.T1243.HHZ. 2016-10-27T00:07:48.99 1.0 undecidable manual P 124 35.5422 50 0.09 23
IV.T1241.EHZ. 2016-10-27T00:07:47.45 0.1 positive manual P 94 28.1496 50 -0.31 91
IV.T1201.HNZ. 2016-10-27T00:07:47.99 1.0 undecidable manual P 151 27.6501 50 0.3 23
XO.AM05.HNZ. 2016-10-27T00:07:47.16 1.0 undecidable manual P 62 24.4533 50 -0.04 24
IV.MC2.EHZ. 2016-10-27T00:07:47.03 0.6 undecidable manual S 64 9.2796 138 0.24 48
IV.T1215.EHZ. 2016-10-27T00:07:46.36 0.1 positive manual P 245 19.4694 118 0 98
IV.T1245.HHZ. 2016-10-27T00:07:46.63 0.1 undecidable manual S 104 8.5803 141 0.01 100
IV.FEMA.HNZ. 2016-10-27T00:07:46.98 0.6 undecidable manual S 343 10.0788 136 0.01 50
IV.T1217.EHZ. 2016-10-27T00:07:46.75 0.3 positive manual P 215 22.0668 115 -0.07 72
IV.MMO1.EHZ. 2016-10-27T00:07:46.40 0.1 positive manual P 82 19.7691 118 -0.01 98
IV.CESI.HHZ. 2016-10-27T00:07:46.48 0.3 undecidable manual P 314 20.5683 117 -0.08 72
IV.MC2.EHZ. 2016-10-27T00:07:45.35 3.0 undecidable manual P 64 9.2796 138 0.62 0
IV.T1216.EHZ. 2016-10-27T00:07:45.96 0.3 undecidable manual S 288 5.6943 151 -0.11 74
IV.FEMA.HNZ. 2016-10-27T00:07:45.06 0.3 negative manual P 343 10.0788 136 0.22 72
IV.T1245.HHZ. 2016-10-27T00:07:44.86 0.1 negative manual P 104 8.5803 141 0.22 96
IV.T1216.EHZ. 2016-10-27T00:07:43.95 0.3 undecidable manual P 288 5.6943 151 -0.37 70
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAMP.HHN. ML:1.4 0.00007265 0.22 AML other m 2016-10-27T00:08:34.16
IV.CAMP.HHE. ML:1.2 0.0000506 0.7 AML other m 2016-10-27T00:08:59.87
IV.CESI.HHE. ML:2.1 0.0008515 1.62 AML other m 2016-10-27T00:08:47.01
IV.CESI.HHN. ML:2.1 0.000912 0.14 AML other m 2016-10-27T00:08:30.90
IV.GUMA.HHE. ML:2.3 0.001071 1.42 AML other m 2016-10-27T00:08:52.90
IV.GUMA.HHN. ML:2.2 0.0007664999999999999 0.44 AML other m 2016-10-27T00:08:48.12
IV.LNSS.HHE. ML:1.7 0.0002215 0.18 AML other m 2016-10-27T00:08:31.62
IV.LNSS.HHN. ML:1.8 0.0003305 0.18 AML other m 2016-10-27T00:08:31.41
IV.T1241.EHN. ML:1.5 0.000169 0.34 AML other m 2016-10-27T00:08:54.67
IV.T1241.EHE. ML:1.6 0.00020800000000000001 1.72 AML other m 2016-10-27T00:07:52.01
IV.TERO.HHE. ML:1.5 0.00007714999999999999 0.5 AML other m 2016-10-27T00:08:00.46
IV.TERO.HHN. ML:1.6 0.00009095 0.62 AML other m 2016-10-27T00:09:02.97
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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