Earthquake with magnitude of ML 1.8 on date 31-10-2016 and time 03:48:08 (Italy) in region 5 km NW Preci (PG)

A magnitude ML 1.8 earthquake occured in region: 5 km NW Preci (PG), on

  • 31-10-2016 02:48:08 (UTC)
  • 31-10-2016 03:48:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9100, 13.0000 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.

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 5 724 724
Sellano PG 6 1079 1803
Visso MC 8 1107 2910
Monte Cavallo MC 9 145 3055
Ussita MC 12 444 3499
Cerreto di Spoleto PG 12 1075 4574
Castelsantangelo sul Nera MC 13 281 4855
Norcia PG 15 4957 9812
Pieve Torina MC 16 1458 11270
Fiordimonte MC 16 202 11472
Pievebovigliana MC 18 866 12338
Serravalle di Chienti MC 19 1070 13408
Vallo di Nera PG 19 364 13772
Fiastra MC 19 559 14331
Muccia MC 20 915 15246
Acquacanina MC 20 121 15367

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
54 Km E of Perugia (166134 inhabitants)
64 Km W of Teramo (54892 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
91 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
Bulletin
Rev1000
ML 1.8 2016-10-31
02:48:08
42.9097 12.9995 10 2019-02-12
14:03:38
Bollettino Sismico Italiano INGV 54089751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-31 02:48:08 ± 0.05
Latitude 42.9097 ± 0.0045
Longitude 12.9995 ± 0.0061
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 54089751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 579
Semi-minor axis of confidence ellipse (meter) 291
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 139
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.64032
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 54089751
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-02-22 11:46:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HHZ. 2016-10-31T02:48:42.69 3.0 undecidable manual Pn 1.68 0
IV.FSSB.HHZ. 2016-10-31T02:48:36.99 3.0 undecidable manual S 0.03 0
IV.NARO.HHZ. 2016-10-31T02:48:35.99 3.0 undecidable manual S -0.26 0
IV.PIEI.HHZ. 2016-10-31T02:48:34.99 3.0 undecidable manual S 0.5 0
IV.NARO.HHZ. 2016-10-31T02:48:23.39 3.0 positive manual P -0.62 0
IV.FOSV.EHZ. 2016-10-31T02:48:23.97 1.0 undecidable manual S 336 46.9197 50 0.25 22
IV.EL6.EHZ. 2016-10-31T02:48:23.72 1.0 undecidable manual S 10 47.3193 50 -0.11 23
IV.SNTG.HHZ. 2016-10-31T02:48:21.39 0.3 undecidable manual S 353 38.628 50 -0.12 70
IV.ATVO.HHZ. 2016-10-31T02:48:21.34 1.0 undecidable manual P 318 71.0733 50 0.29 21
IV.ASSB.HHZ. 2016-10-31T02:48:19.57 0.6 undecidable manual S 298 31.3464 50 0 48
IV.CING.HHZ. 2016-10-31T02:48:18.72 0.6 positive manual P 17 54.1014 50 0.29 44
IV.EL6.EHZ. 2016-10-31T02:48:17.26 0.6 undecidable manual P 10 47.3193 50 -0.13 46
IV.FOSV.EHZ. 2016-10-31T02:48:17.24 1.0 undecidable manual P 336 46.9197 50 -0.08 23
IV.ATCC.EHZ. 2016-10-31T02:48:16.69 0.3 undecidable manual P 316 42.2244 50 0.08 70
IV.ASSB.HHZ. 2016-10-31T02:48:15.03 3.0 undecidable manual P 298 31.3464 50 0.1 0
IV.SNTG.HHZ. 2016-10-31T02:48:15.92 0.3 undecidable manual P 353 38.628 50 -0.13 70
IV.T1215.EHZ. 2016-10-31T02:48:15.12 0.3 undecidable manual S 222 15.9729 123 -0.07 73
IV.GUMA.HHZ. 2016-10-31T02:48:15.00 0.6 undecidable manual P 58 32.1456 50 -0.05 48
IV.GAG1.HNE. 2016-10-31T02:48:15.91 1.0 undecidable manual P 9 36.8298 50 0.13 23
IV.SEF1.HNZ. 2016-10-31T02:48:14.01 0.6 undecidable manual P 351 26.6511 50 -0.19 47
IV.T1201.HNN. 2016-10-31T02:48:13.73 3.0 undecidable manual S 34.6431 -6.73 0
IV.CSP1.EHZ. 2016-10-31T02:48:13.99 1.0 undecidable manual P 39 26.1516 50 -0.14 24
IV.T1215.EHZ. 2016-10-31T02:48:12.51 0.6 undecidable manual P 222 15.9729 123 0.11 49
IV.T1216.EHZ. 2016-10-31T02:48:12.04 0.3 undecidable manual S 143 2.5974 166 -0.24 73
IV.T1245.HNZ. 2016-10-31T02:48:12.61 1.0 undecidable manual P 111 16.3725 122 0.14 24
IV.FEMA.HNZ. 2016-10-31T02:48:12.92 0.6 undecidable manual S 35 7.0929 145 -0.01 50
IV.T1201.HNN. 2016-10-31T02:48:12.02 3.0 undecidable manual P 34.6431 -3.42 0
IV.FEMA.HNZ. 2016-10-31T02:48:11.25 0.1 undecidable manual P 35 7.0929 145 0.16 98
IV.T1216.EHZ. 2016-10-31T02:48:10.80 0.1 undecidable manual P 143 2.5974 166 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1216.EHN. ML:2.3 0.0034768014999999996 0.096 AML other m 2016-10-31T02:48:12.27
IV.T1216.EHE. ML:2.2 0.0025832765000000004 0.16 AML other m 2016-10-31T02:48:12.22
IV.FEMA.HNE. ML:2.2 0.0022844935 0.1808 AML other m 2016-10-31T02:48:13.47
IV.FEMA.HNN. ML:2.2 0.002448383 0.2 AML other m 2016-10-31T02:48:13.57
IV.T1215.HNN. ML:1.6 0.00037000065 0.112 AML other m 2016-10-31T02:48:15.26
IV.T1215.EHN. ML:1.6 0.00037346649999999993 0.112 AML other m 2016-10-31T02:48:15.21
IV.T1215.HNE. ML:1.5 0.000281298245 0.096 AML other m 2016-10-31T02:48:15.29
IV.T1215.EHE. ML:1.5 0.00029808855000000003 0.112 AML other m 2016-10-31T02:48:15.24
IV.CSP1.EHN. ML:1.8 0.00034832395000000004 0.2192 AML other m 2016-10-31T02:48:19.01
IV.CSP1.EHE. ML:1.9 0.00049194155 0.1792 AML other m 2016-10-31T02:48:18.38
IV.GUMA.HHE. ML:2.0 0.00040022195 0.28 AML other m 2016-10-31T02:48:28.47
IV.GUMA.HNN. ML:1.9 0.0003443851 0.3008 AML other m 2016-10-31T02:48:27.18
IV.GUMA.HHN. ML:2.0 0.000412968 0.32 AML other m 2016-10-31T02:48:20.11
IV.GUMA.HNE. ML:2.0 0.00041895189999999996 0.4416 AML other m 2016-10-31T02:48:23.14
IV.SNTG.HNN. ML:1.8 0.0002099051 0.2304 AML other m 2016-10-31T02:48:21.70
IV.SNTG.HHE. ML:1.7 0.00019026445 0.16 AML other m 2016-10-31T02:48:21.96
IV.SNTG.HHN. ML:1.8 0.0002207815 0.1392 AML other m 2016-10-31T02:48:21.89
IV.SNTG.HNE. ML:1.8 0.0002158139 0.1696 AML other m 2016-10-31T02:48:21.88
IV.ATCC.EHE. ML:1.6 0.000114227665 0.16 AML other m 2016-10-31T02:48:23.50
IV.ATCC.EHN. ML:1.6 0.00011864208000000001 0.2592 AML other m 2016-10-31T02:48:23.31
IV.FOSV.EHE. ML:1.5 0.00008689423 0.4384 AML other m 2016-10-31T02:48:24.28
IV.FOSV.EHN. ML:1.4 0.00006352901 0.24 AML other m 2016-10-31T02:48:24.80
IV.EL6.EHN. ML:2.1 0.00037787380000000003 0.1808 AML other m 2016-10-31T02:48:24.59
IV.EL6.EHE. ML:2.1 0.0003408745000000001 0.16 AML other m 2016-10-31T02:48:25.29
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