Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 31-12-2014 and time 10:43:30 (UTC) in region 5 km S Gubbio (PG)

A magnitude ML 1.6 earthquake occured in region: 5 km S Gubbio (PG), on

  • 31-12-2014 10:43:30 (UTC)
  • 31-12-2014 11:43:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3100, 12.5620 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
Gubbio PG 5 32216 32216
Costacciaro PG 13 1216 33432
Scheggia e Pascelupo PG 14 1393 34825
Sigillo PG 15 2404 37229
Fossato di Vico PG 16 2840 40069
Valfabbrica PG 17 3389 43458
Pietralunga PG 18 2111 45569
Umbertide PG 19 16681 62250
Cantiano PU 19 2245 64495
Montone PG 20 1680 66175

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NE of Perugia (166134 inhabitants)
41 Km N of Foligno (57155 inhabitants)
58 Km E of Arezzo (99543 inhabitants)
70 Km SW of Fano (60888 inhabitants)
73 Km SW of Pesaro (94582 inhabitants)
84 Km N of Terni (111501 inhabitants)
84 Km S of Rimini (147750 inhabitants)
85 Km W of Ancona (100861 inhabitants)
96 Km S of Cesena (96758 inhabitants)
100 Km E of Siena (53903 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 1.6 2014-12-31
10:43:30		 43.3098 12.5623 10 2015-09-21
09:40:11		 Bollettino Sismico Italiano INGV 19626841
Reviewed
Rev100 		ML 1.6 2014-12-31
10:43:31		 43.2853 12.491 11 2014-12-31
10:55:01		 Sala Sismica INGV-Roma 16069591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-12-31 10:43:30 ± 0.06
Latitude 43.3098 ± 0.0027
Longitude 12.5623 ± 0.0049
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 19626841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 287
Semi-minor axis of confidence ellipse (meter) 249
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 35
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 3.26454
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 1
Type of magnitude ML
Reference to an origin 19626841
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-06-11 01:02:31

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 3
Type of magnitude ML
Reference to an origin 16069591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-12-31 10:55:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MCRV.HHZ. 2014-12-31T10:44:56.99 3.0 undecidable manual Sn 362.3595 -1.46 0
IV.GIUL.HHZ. 2014-12-31T10:44:28.99 3.0 undecidable manual Sg 6.71 0
IV.MCRV.HHZ. 2014-12-31T10:44:25.46 3.0 positive manual Pg 362.3595 7.35 0
IV.PTRJ.HHZ. 2014-12-31T10:44:19.57 3.0 undecidable manual Pg 11.81 0
IV.CNCS.HNZ. 2014-12-31T10:44:10.28 3.0 negative manual Pn -1.86 0
IV.BADI.EHE. 2014-12-31T10:43:42.96 0.3 undecidable manual S 311 33.8439 50 0.24 69
IV.ASSB.HHZ. 2014-12-31T10:43:41.60 0.1 undecidable manual S 165 30.6471 50 -0.25 92
IV.ATMI.HHE. 2014-12-31T10:43:40.33 0.3 undecidable manual S 277 23.8539 113 0.35 68
IV.FRON.EHE. 2014-12-31T10:43:40.64 0.3 undecidable manual S 30 26.5512 50 -0.13 71
IV.PIEI.HHZ. 2014-12-31T10:43:40.70 0.3 undecidable manual S 355 25.1526 112 0.32 68
IV.ATTE.HHE. 2014-12-31T10:43:39.07 0.3 undecidable manual S 234 20.9679 116 0.04 73
IV.SSFR.HHE. 2014-12-31T10:43:39.57 0.3 undecidable manual S 52 22.6551 114 0.01 73
IV.ATPI.EHZ. 2014-12-31T10:43:38.70 0.3 undecidable manual S 321 20.2686 116 -0.13 72
IV.ATVO.HHZ. 2014-12-31T10:43:37.00 0.1 undecidable manual S 303 14.874 124 -0.21 95
IV.FOSV.EHE. 2014-12-31T10:43:37.60 0.3 undecidable manual S 96 16.1727 122 0.03 74
IV.BADI.EHE. 2014-12-31T10:43:37.82 0.3 undecidable manual P 311 33.8439 50 0.06 71
IV.ATCC.EHZ. 2014-12-31T10:43:37.90 0.3 undecidable manual S 156 15.1737 123 0.61 64
IV.ASSB.HHZ. 2014-12-31T10:43:36.94 0.1 negative manual P 165 30.6471 50 -0.32 90
IV.ATMI.HHE. 2014-12-31T10:43:36.25 0.6 undecidable manual P 277 23.8539 113 0.08 48
IV.FRON.EHE. 2014-12-31T10:43:36.44 0.6 undecidable manual P 30 26.5512 50 -0.19 47
IV.PIEI.HHZ. 2014-12-31T10:43:36.55 1.0 negative manual P 355 25.1526 112 0.15 24
IV.ATTE.HHE. 2014-12-31T10:43:36.10 0.6 undecidable manual P 234 20.9679 116 0.47 44
IV.SSFR.HHE. 2014-12-31T10:43:36.01 0.1 undecidable manual P 52 22.6551 114 0.08 96
IV.ATPI.EHZ. 2014-12-31T10:43:35.55 0.3 undecidable manual P 321 20.2686 116 0.04 73
IV.ATFO.HHE. 2014-12-31T10:43:34.73 0.3 undecidable manual S 7 6.3936 148 -0.36 70
IV.ATVO.HHZ. 2014-12-31T10:43:34.54 0.1 positive manual P 303 14.874 124 -0.04 99
IV.FOSV.EHE. 2014-12-31T10:43:34.99 0.3 undecidable manual P 96 16.1727 122 0.2 71
IV.ATCC.EHZ. 2014-12-31T10:43:34.96 0.3 undecidable manual P 156 15.1737 123 0.34 69
IV.MURB.HHZ. 2014-12-31T10:43:34.50 0.1 undecidable manual S 210 5.994 149 -0.53 90
IV.ATFO.HHE. 2014-12-31T10:43:33.27 0.1 positive manual P 7 6.3936 148 -0.09 99
IV.MURB.HHZ. 2014-12-31T10:43:33.28 0.1 positive manual P 210 5.994 149 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HHN. ML:2.2 0.00234 0.24 AML other m 2014-12-31T10:43:35.21
IV.MURB.HHE. ML:1.9 0.00131 0.2 AML other m 2014-12-31T10:43:36.73
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