Earthquake with magnitude of Md 2.7 on date 02-05-1986 and time 07:02:00 (Italy) in region 10 km SE Valtopina (PG)

A magnitude Md 2.7 earthquake occured in region: 10 km SE Valtopina (PG), on

  • 02-05-1986 05:02:00 (UTC)
  • 02-05-1986 07:02:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.99, 12.82 at 6 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
Valtopina PG 10 1398 1398
Foligno PG 10 57155 58553
Spello PG 12 8645 67198
Trevi PG 13 8469 75667
Sellano PG 14 1079 76746
Nocera Umbra PG 14 5839 82585
Serravalle di Chienti MC 14 1070 83655
Monte Cavallo MC 15 145 83800
Montefalco PG 17 5679 89479
Bevagna PG 18 5081 94560
Campello sul Clitunno PG 19 2442 97002
Assisi PG 19 28299 125301
Cannara PG 20 4305 129606
Pieve Torina MC 20 1458 131064
Cerreto di Spoleto PG 20 1075 132139

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km E of Foligno (57155 inhabitants)
38 Km E of Perugia (166134 inhabitants)
49 Km N of Terni (111501 inhabitants)
81 Km W of Teramo (54892 inhabitants)
85 Km NW of L'Aquila (69753 inhabitants)
86 Km NE of Viterbo (67173 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
93 Km SE of Arezzo (99543 inhabitants)
97 Km S of Fano (60888 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 2.7 1986-05-02
05:02:00
42.99 12.82 5 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 26269
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-05-02 05:02:00 ± 0.614
Latitude 42.99 ± 0.02
Longitude 12.82 ± 0.04
Depth (km) 5 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 26269

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) 4447.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.0013
Epicentral distance of station farthest from the epicenter (degree) 0.01319
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:2.7

Field Value
Value 2.7
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 26269
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:27:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CRE.Z. 1986-05-02T05:02:32.00 10.0 undecidable manual SG 315 0.008 0.09 0.6
--.SD1.Z. 1986-05-02T05:02:28.40 10.0 undecidable manual PN 149 0.0132 1.11 0.4
--.MAO.Z. 1986-05-02T05:02:26.46 10.0 undecidable manual PN 245 0.0121 0.79 0.6
--.ARV.Z. 1986-05-02T05:02:19.50 10.0 undecidable manual SG 9 0.0046 -0.33 0.8
--.CRE.Z. 1986-05-02T05:02:18.00 10.0 undecidable manual PG 315 0.008 -0.57 1.1
--.MNS.Z. 1986-05-02T05:02:11.76 10.0 undecidable manual PG 189 0.0054 -1.5 0.2
--.ARV.Z. 1986-05-02T05:02:11.50 10.0 undecidable manual PG 9 0.0046 -0.1 1.5
--.ASS.Z. 1986-05-02T05:02:04.00 10.0 positive manual PG 301 0.0013 0.22 2.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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