Earthquake with magnitude of Md 2.4 on date 03-10-1986 and time 22:47:08 (Italy) in region 6 km NW Preci (PG)

A magnitude Md 2.4 earthquake occured in region: 6 km NW Preci (PG), on

  • 03-10-1986 21:47:08 (UTC)
  • 03-10-1986 22:47:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.93, 13 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 6 724 724
Visso MC 7 1107 1831
Monte Cavallo MC 7 145 1976
Sellano PG 8 1079 3055
Ussita MC 11 444 3499
Castelsantangelo sul Nera MC 13 281 3780
Pieve Torina MC 13 1458 5238
Fiordimonte MC 14 202 5440
Cerreto di Spoleto PG 14 1075 6515
Pievebovigliana MC 16 866 7381
Serravalle di Chienti MC 16 1070 8451
Norcia PG 17 4957 13408
Fiastra MC 17 559 13967
Muccia MC 17 915 14882
Acquacanina MC 18 121 15003
Bolognola MC 20 142 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
54 Km E of Perugia (166134 inhabitants)
65 Km W of Teramo (54892 inhabitants)
72 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
93 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
Md 2.4 1986-10-03
21:47:08
42.93 13 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 35239
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-10-03 21:47:08 ± 1.199
Latitude 42.93 ± 0.05
Longitude 13.00 ± 0.06
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 35239

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) 7272.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 301
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.00923
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 35239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:35:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CRE.Z. 1986-10-03T21:47:30.00 10.0 undecidable manual PG 312 0.0092 1.05 0.5
--.ARV.Z. 1986-10-03T21:47:29.50 10.0 undecidable manual SG 355 0.0051 0.56 0.6
--.ARV.Z. 1986-10-03T21:47:19.70 10.0 undecidable manual PG 355 0.0051 -0.7 1.4
--.ASS.Z. 1986-10-03T21:47:19.50 10.0 undecidable manual SG 296 0.0026 -0.42 0.7
--.ASS.Z. 1986-10-03T21:47:14.70 10.0 undecidable manual PG 296 0.0026 -0.5 1.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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