Earthquake with magnitude of Md 2.0 on date 08-06-1985 and time 14:33:02 (Italy) in region 11 km E Umbertide (PG)

A magnitude Md 2.0 earthquake occured in region: 11 km E Umbertide (PG), on

  • 08-06-1985 12:33:02 (UTC)
  • 08-06-1985 14:33:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2870, 12.4580 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
Umbertide PG 11 16681 16681
Gubbio PG 12 32216 48897
Montone PG 14 1680 50577
Pietralunga PG 17 2111 52688
Valfabbrica PG 18 3389 56077

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km N of Perugia (166134 inhabitants)
42 Km NW of Foligno (57155 inhabitants)
51 Km E of Arezzo (99543 inhabitants)
77 Km SW of Fano (60888 inhabitants)
79 Km SW of Pesaro (94582 inhabitants)
82 Km N of Terni (111501 inhabitants)
87 Km S of Rimini (147750 inhabitants)
91 Km E of Siena (53903 inhabitants)
93 Km W of Ancona (100861 inhabitants)
96 Km S of Cesena (96758 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 2.0 1985-06-08
12:33:02
43.287 12.458 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 8249
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-06-08 12:33:02 ± 0.381
Latitude 43.2870 ± 0.0115
Longitude 12.4580 ± 0.0260
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 8249

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) 2465.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 271
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00235
Epicentral distance of station farthest from the epicenter (degree) 0.00453
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 8249
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:12:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CM2.Z. 1985-06-08T12:33:20.10 10.0 undecidable manual SG 100 0.4995 -0.15 1
--.AR1.Z. 1985-06-08T12:33:17.50 10.0 undecidable manual SG 58 0.3996 0.34 0.5
--.AS1.Z. 1985-06-08T12:33:13.00 10.0 undecidable manual SG 147 0.2553 0.5 0.4
--.CM2.Z. 1985-06-08T12:33:12.10 10.0 undecidable manual PG 100 0.4995 -0.46 0.6
--.AR1.Z. 1985-06-08T12:33:11.00 10.0 undecidable manual PG 58 0.3996 0.21 1.6
--.AS1.Z. 1985-06-08T12:33:08.00 10.0 undecidable manual PG 147 0.2553 -0.09 2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download