Earthquake with magnitude of M 3.2 on date 25-12-1986 and time 10:00:27 (Italy) in region 4 km SE Firmo (CS)

A magnitude M 3.2 earthquake occured in region: 4 km SE Firmo (CS), on

  • 25-12-1986 09:00:27 (UTC)
  • 25-12-1986 10:00:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 39.69, 16.2 at 459 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
Firmo CS 4 2115 2115
Altomonte CS 6 4488 6603
Lungro CS 9 2592 9195
Roggiano Gravina CS 9 7208 16403
San Lorenzo del Vallo CS 9 3394 19797
Acquaformosa CS 10 1106 20903
Saracena CS 10 3828 24731
Spezzano Albanese CS 10 7028 31759
Tarsia CS 11 2054 33813
Mottafollone CS 12 1236 35049
San Donato di Ninea CS 13 1360 36409
Terranova da Sibari CS 13 5100 41509
Castrovillari CS 14 22240 63749
San Basile CS 14 1055 64804
San Sosti CS 15 2185 66989
Cassano all'Ionio CS 15 18495 85484
Malvito CS 16 1795 87279
Santa Caterina Albanese CS 16 1222 88501
San Marco Argentano CS 16 7424 95925
Frascineto CS 17 2154 98079
Cervicati CS 17 829 98908
Morano Calabro CS 18 4576 103484
Civita CS 18 902 104386
Fagnano Castello CS 19 3885 108271
Mongrassano CS 19 1607 109878
Sant'Agata di Esaro CS 20 1890 111768
Santa Sofia d'Epiro CS 20 2628 114396
San Demetrio Corone CS 20 3559 117955

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km N of Cosenza (67546 inhabitants)
80 Km N of Lamezia Terme (70714 inhabitants)
94 Km NW 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
Rev 1000 M 3.2 1986-12-25
09:00:27
39.69 16.2 459 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 38589
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-12-25 09:00:27 ± 6.491
Latitude 39.69 ± 0.06
Longitude 16.20 ± 0.11
Depth (km) 459 ± 54 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 38589

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) 11233.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 128
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00097
Epicentral distance of station farthest from the epicenter (degree) 0.01457
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

M:3.2

Field Value
Value 3.2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 38589
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:50:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.LCI.Z. 1986-12-25T09:01:30.00 10.0 undecidable manual P 65 0.0144 -0.12 0.8
--.SO9.Z. 1986-12-25T09:01:30.50 10.0 undecidable manual P 183 0.0146 0.28 0.5
--.GR9.Z. 1986-12-25T09:01:27.00 10.0 negative manual P 168 0.008 -0.26 1.5
--.ORI.Z. 1986-12-25T09:01:26.80 10.0 undecidable manual P 27 0.0036 0.6 0.1
--.MG9.Z. 1986-12-25T09:01:26.50 10.0 negative manual P 312 0.0059 -0.17 2
--.TS9.Z. 1986-12-25T09:01:26.00 10.0 undecidable manual P 105 0.001 0.05 1.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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