Earthquake with magnitude of Md 2.0 on date 08-03-1986 and time 14:16:02 (UTC) in region 4 km W Valfabbrica (PG)

A magnitude Md 2.0 earthquake occured in region: 4 km W Valfabbrica (PG), on

  • 08-03-1986 14:16:02 (UTC)
  • 08-03-1986 15:16:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1510, 12.5520 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
Valfabbrica PG 4 3389 3389
Bastia Umbra PG 9 21874 25263
Assisi PG 10 28299 53562
Perugia PG 14 166134 219696
Bettona PG 16 4367 224063
Torgiano PG 17 6725 230788
Cannara PG 17 4305 235093
Valtopina PG 19 1398 236491
Nocera Umbra PG 20 5839 242330

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Perugia (166134 inhabitants)
25 Km NW of Foligno (57155 inhabitants)
65 Km SE of Arezzo (99543 inhabitants)
66 Km N of Terni (111501 inhabitants)
86 Km SW of Fano (60888 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
89 Km SW of Pesaro (94582 inhabitants)
94 Km SW of Ancona (100861 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 1986-03-08
14:16:02
43.151 12.552 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 23809
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-03-08 14:16:02 ± 0.167
Latitude 43.1510 ± 0.0124
Longitude 12.5520 ± 0.0090
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 23809

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) 1566.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.00405
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 1
Type of magnitude Md
Reference to an origin 23809
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:25:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ARV.Z. 1986-03-08T14:16:19.00 10.0 undecidable manual SG 39 0.444 0.55 0.1
--.ARV.Z. 1986-03-08T14:16:11.20 10.0 undecidable manual PG 39 0.444 -0.34 0.6
--.PRG.Z. 1986-03-08T14:16:08.00 10.0 undecidable manual SG 246 0.1221 0.03 1.2
--.ASS.Z. 1986-03-08T14:16:07.50 10.0 undecidable manual SG 140 0.111 -0.21 0.6
--.PRG.Z. 1986-03-08T14:16:05.50 10.0 undecidable manual PG 246 0.1221 0.01 2
--.ASS.Z. 1986-03-08T14:16:05.50 10.0 undecidable manual PG 140 0.111 0.16 1.6
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