Earthquake with magnitude of Md 2.9 on date 27-06-1986 and time 10:48:52 (Italy) in region 4 km S Pietralunga (PG)

A magnitude Md 2.9 earthquake occured in region: 4 km S Pietralunga (PG), on

  • 27-06-1986 08:48:52 (UTC)
  • 27-06-1986 10:48:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.41, 12.44 at 0 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
Pietralunga PG 4 2111 2111
Montone PG 10 1680 3791
Gubbio PG 13 32216 36007
Umbertide PG 14 16681 52688
CittĂ  di Castello PG 17 39913 92601
Apecchio PU 17 1882 94483
Cantiano PU 17 2245 96728
Scheggia e Pascelupo PG 19 1393 98121

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km N of Perugia (166134 inhabitants)
45 Km E of Arezzo (99543 inhabitants)
55 Km NW of Foligno (57155 inhabitants)
68 Km SW of Fano (60888 inhabitants)
68 Km SW of Pesaro (94582 inhabitants)
74 Km S of Rimini (147750 inhabitants)
83 Km S of Cesena (96758 inhabitants)
90 Km E of Siena (53903 inhabitants)
91 Km W of Ancona (100861 inhabitants)
96 Km N of Terni (111501 inhabitants)
96 Km SE of Forlì (117913 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
Rev 1000 Md 2.9 1986-06-27
08:48:52
43.41 12.44 0 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 30309
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-06-27 08:48:52 ± 0.126
Latitude 43.41 ± 0.01
Longitude 12.44 ± 0.01
Depth (km) 0 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 30309

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) 1223.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.0034
Epicentral distance of station farthest from the epicenter (degree) 0.00931
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.9

Field Value
Value 2.9
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 30309
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:31:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.PRO.E. 1986-06-27T08:49:16.70 10.0 undecidable manual SG 32 0.0054 0.8 0
--.MNS.Z. 1986-06-27T08:49:14.00 10.0 undecidable manual PG 170 0.0093 -0.1 1
--.CRE.Z. 1986-06-27T08:49:08.00 10.0 undecidable manual SG 301 0.0036 -0.44 0.3
--.SU9.Z. 1986-06-27T08:49:08.00 10.0 undecidable manual SG 156 0.0036 -0.17 0.6
--.ASS.Z. 1986-06-27T08:49:07.50 10.0 undecidable manual SG 155 0.0034 0.21 0.8
--.PRO.Z. 1986-06-27T08:49:05.70 10.0 undecidable manual PG 32 0.0054 -0.38 0.6
--.CRE.Z. 1986-06-27T08:49:02.00 10.0 positive manual PG 301 0.0036 0.23 2.4
--.SU9.Z. 1986-06-27T08:49:01.80 10.0 undecidable manual PG 156 0.0036 0.19 1.3
--.ARV.Z. 1986-06-27T08:49:01.00 10.0 undecidable manual PG 76 0.0034 -0.12 1.5
--.ASS.Z. 1986-06-27T08:49:01.00 10.0 undecidable manual PG 155 0.0034 -0.11 1.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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