Earthquake with magnitude of Md 2.3 on date 14-09-1986 and time 03:10:22 (Italy) in region 4 km NE Sellano (PG)

A magnitude Md 2.3 earthquake occured in region: 4 km NE Sellano (PG), on

  • 14-09-1986 01:10:22 (UTC)
  • 14-09-1986 03:10:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9230, 12.9460 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
Sellano PG 4 1079 1079
Preci PG 9 724 1803
Monte Cavallo MC 9 145 1948
Visso MC 12 1107 3055
Cerreto di Spoleto PG 12 1075 4130
Ussita MC 16 444 4574
Pieve Torina MC 16 1458 6032
Serravalle di Chienti MC 17 1070 7102
Trevi PG 17 8469 15571
Castelsantangelo sul Nera MC 17 281 15852
Fiordimonte MC 17 202 16054
Campello sul Clitunno PG 18 2442 18496
Vallo di Nera PG 18 364 18860
Norcia PG 19 4957 23817
Pievebovigliana MC 19 866 24683
Muccia MC 20 915 25598

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
50 Km E of Perugia (166134 inhabitants)
69 Km W of Teramo (54892 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
90 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 2.3 1986-09-14
01:10:22
42.923 12.946 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 34049
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-09-14 01:10:22 ± 0.422
Latitude 42.9230 ± 0.0349
Longitude 12.9460 ± 0.0451
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 34049

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) 5343.4
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 5
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.01230
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 34049
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:34:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SD1.Z. 1986-09-14T01:10:47.50 10.0 undecidable manual PN 151 1.3653 -0.27 1.1
--.ARV.Z. 1986-09-14T01:10:42.00 10.0 undecidable manual SG 359 0.5772 -1.3 0.1
--.ARV.Z. 1986-09-14T01:10:35.50 10.0 undecidable manual PG 359 0.5772 0.83 0.8
--.ASS.Z. 1986-09-14T01:10:33.20 10.0 undecidable manual SG 302 0.2553 0.16 1.2
--.ASS.Z. 1986-09-14T01:10:28.50 10.0 undecidable manual PG 302 0.2553 -0.25 1.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download