Earthquake with magnitude of Md 2.1 on date 30-09-1986 and time 19:16:52 (UTC) in region Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria)

A magnitude Md 2.1 earthquake occured in region: Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria), on

  • 30-09-1986 19:16:52 (UTC)
  • 30-09-1986 20:16:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.5990, 15.7590 at 5 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
Ricadi VV 10 4900 4900
Joppolo VV 12 1926 6826
Spilinga VV 13 1464 8290
Tropea VV 15 6441 14731
Drapia VV 15 2085 16816
Nicotera VV 16 6290 23106
Zaccanopoli VV 17 752 23858
Parghelia VV 17 1300 25158
Limbadi VV 18 3695 28853
San Ferdinando RC 19 4490 33343

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km NE of Messina (238439 inhabitants)
55 Km N of Reggio di Calabria (183035 inhabitants)
64 Km SW of Lamezia Terme (70714 inhabitants)
80 Km W of Catanzaro (90612 inhabitants)
89 Km SW of Cosenza (67546 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 2.1 1986-09-30
19:16:52
38.599 15.759 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 34919
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-09-30 19:16:52 ± 0.395
Latitude 38.5990 ± 0.0199
Longitude 15.7590 ± 0.0403
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 34919

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) 4141.2
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 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00380
Epicentral distance of station farthest from the epicenter (degree) 0.01384
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 34919
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:35:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MG9.Z. 1986-09-30T19:17:21.00 10.0 undecidable manual PN 354 1.5318 0.92 0.6
--.GR9.Z. 1986-09-30T19:17:14.50 10.0 undecidable manual SG 67 0.5661 1.41 0.2
--.SO9.Z. 1986-09-30T19:17:13.50 10.0 undecidable manual SG 156 0.5661 0.15 0.8
--.MSI.Z. 1986-09-30T19:17:09.00 10.0 undecidable manual SG 202 0.4218 0.48 0.7
--.CZI.Z. 1986-09-30T19:17:05.30 10.0 undecidable manual PG 25 0.6882 -1.05 0.8
--.GR9.Z. 1986-09-30T19:17:04.00 10.0 undecidable manual PG 67 0.5661 -0.19 1.9
--.SO9.Z. 1986-09-30T19:17:03.00 10.0 undecidable manual PG 156 0.5661 -1.34 0.5
--.MSI.Z. 1986-09-30T19:17:01.50 10.0 undecidable manual PG 202 0.4218 -0.05 1.9
--.GA2.Z. 1986-09-30T19:17:01.20 10.0 undecidable manual PG 172 0.4329 -0.51 1.6
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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