Earthquake with magnitude of Md 2.3 on date 06-01-1985 and time 04:19:36 (UTC) in region 3 km NW Gubbio (PG)

A magnitude Md 2.3 earthquake occured in region: 3 km NW Gubbio (PG), on

  • 06-01-1985 04:19:36 (UTC)
  • 06-01-1985 05:19:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3700, 12.5450 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
Gubbio PG 3 32216 32216
Scheggia e Pascelupo PG 11 1393 33609
Pietralunga PG 12 2111 35720
Cantiano PU 13 2245 37965
Costacciaro PG 14 1216 39181
Sigillo PG 17 2404 41585
Montone PG 18 1680 43265
Umbertide PG 19 16681 59946
Fossato di Vico PG 20 2840 62786

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NE of Perugia (166134 inhabitants)
48 Km N of Foligno (57155 inhabitants)
55 Km E of Arezzo (99543 inhabitants)
65 Km SW of Fano (60888 inhabitants)
67 Km SW of Pesaro (94582 inhabitants)
77 Km S of Rimini (147750 inhabitants)
83 Km W of Ancona (100861 inhabitants)
89 Km S of Cesena (96758 inhabitants)
90 Km N of Terni (111501 inhabitants)
98 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
Md 2.3 1985-01-06
04:19:36
43.37 12.545 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 109
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-01-06 04:19:36 ± 0.085
Latitude 43.3700 ± 0.0060
Longitude 12.5450 ± 0.0067
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 109

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 863.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 126
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.00890
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 109
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:05:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNS.Z. 1985-01-06T04:19:56.50 10.0 undecidable manual PG 174 0.9879 0.39 0.2
--.CRE.Z. 1985-01-06T04:19:54.50 10.0 undecidable manual SG 300 0.4995 -0.05 0.9
--.ARV.Z. 1985-01-06T04:19:49.00 10.0 undecidable manual SG 65 0.3108 0.27 0.4
--.ASS.Z. 1985-01-06T04:19:48.50 10.0 undecidable manual SG 165 0.3108 -0.26 0.4
--.CRE.Z. 1985-01-06T04:19:47.00 10.0 undecidable manual PG 300 0.4995 0.01 1.5
--.ASS.Z. 1985-01-06T04:19:43.50 10.0 undecidable manual PG 165 0.3108 -0.14 1.2
--.ARV.Z. 1985-01-06T04:19:43.50 10.0 undecidable manual PG 65 0.3108 -0.12 2.5
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