Earthquake with magnitude of Md 2.5 on date 28-05-1986 and time 09:30:34 (Italy) in region Costa Calabra nord occidentale (Cosenza)

A magnitude Md 2.5 earthquake occured in region: Costa Calabra nord occidentale (Cosenza), on

  • 28-05-1986 07:30:34 (UTC)
  • 28-05-1986 09:30:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.1010, 15.8550 at 27 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
Amantea CS 20 13975 13975

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SW of Cosenza (67546 inhabitants)
43 Km W of Lamezia Terme (70714 inhabitants)
68 Km W of Catanzaro (90612 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 2.5 1986-05-28
07:30:34
39.101 15.855 27 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 28109
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-05-28 07:30:34 ± 0.289
Latitude 39.1010 ± 0.0134
Longitude 15.8550 ± 0.0316
Depth (km) 27 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 28109

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) 3104.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.00413
Epicentral distance of station farthest from the epicenter (degree) 0.01360
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 28109
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:29:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MG9.Z. 1986-05-28T07:31:07.00 10.0 undecidable manual SN 347 1.0656 0.25 0.4
--.SGO.Z. 1986-05-28T07:30:59.00 10.0 undecidable manual PN 344 1.5096 -0.29 0.8
--.GR9.Z. 1986-05-28T07:30:55.50 10.0 undecidable manual SG 122 0.5217 1.4 0
--.MG9.Z. 1986-05-28T07:30:53.50 10.0 undecidable manual PN 347 1.0656 0.46 0.7
--.FE2.Z. 1986-05-28T07:30:53.50 10.0 undecidable manual PN 170 1.0656 0.26 1.1
--.GA2.Z. 1986-05-28T07:30:51.00 10.0 undecidable manual PN 181 0.9213 -0.26 1.2
--.RI2.Z. 1986-05-28T07:30:50.00 10.0 undecidable manual PN 144 0.8325 0.01 1.5
--.CSI.Z. 1986-05-28T07:30:49.00 10.0 undecidable manual PN 26 0.7548 0.07 1.5
--.ROI.Z. 1986-05-28T07:30:48.20 10.0 undecidable manual PN 49 0.7215 -0.21 1.3
--.SE2.Z. 1986-05-28T07:30:47.50 10.0 undecidable manual PN 97 0.6771 -0.28 1.2
--.GR9.Z. 1986-05-28T07:30:45.20 10.0 undecidable manual PG 122 0.5217 -0.53 0.6
--.DR2.Z. 1986-05-28T07:30:44.60 10.0 undecidable manual PG 172 0.4551 0.06 1.5
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