Earthquake with magnitude of Md 2.1 on date 05-06-1985 and time 19:52:43 (Italy) in region 4 km NW Sellano (PG)

A magnitude Md 2.1 earthquake occured in region: 4 km NW Sellano (PG), on

  • 05-06-1985 17:52:43 (UTC)
  • 05-06-1985 19:52:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.92, 12.91 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
Monte Cavallo MC 11 145 1224
Cerreto di Spoleto PG 12 1075 2299
Preci PG 12 724 3023
Trevi PG 14 8469 11492
Visso MC 15 1107 12599
Campello sul Clitunno PG 16 2442 15041
Foligno PG 17 57155 72196
Serravalle di Chienti MC 17 1070 73266
Vallo di Nera PG 18 364 73630
Pieve Torina MC 18 1458 75088
Ussita MC 19 444 75532
Valtopina PG 19 1398 76930
Fiordimonte MC 20 202 77132

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Foligno (57155 inhabitants)
46 Km NE of Terni (111501 inhabitants)
47 Km E of Perugia (166134 inhabitants)
72 Km W of Teramo (54892 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
86 Km NE of Viterbo (67173 inhabitants)
92 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
Rev 1000 Md 2.1 1985-06-05
17:52:43
42.93 12.91 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 8069
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-06-05 17:52:43 ± 0.586
Latitude 42.93 ± 0.03
Longitude 12.91 ± 0.02
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 8069

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) 3543.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 273
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00202
Epicentral distance of station farthest from the epicenter (degree) 0.0051
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 8069
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:12:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.AR1.Z. 1985-06-05T17:53:04.00 10.0 undecidable manual SG 2 0.0051 -0.15 0.6
--.AR1.Z. 1985-06-05T17:52:56.50 10.0 undecidable manual PG 2 0.0051 0.95 0.3
--.CM2.Z. 1985-06-05T17:52:55.70 10.0 undecidable manual SG 32 0.0028 -0.25 1
--.AS1.Z. 1985-06-05T17:52:53.00 10.0 undecidable manual SG 306 0.002 -0.13 1.1
--.CM2.Z. 1985-06-05T17:52:50.50 10.0 undecidable manual PG 32 0.0028 -0.32 1.5
--.AS1.Z. 1985-06-05T17:52:49.00 10.0 undecidable manual PG 306 0.002 -0.19 1.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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