Earthquake with magnitude of Md 2.6 on date 09-04-1985 and time 01:16:54 (UTC) in region 4 km E Spezzano Piccolo (CS)

A magnitude Md 2.6 earthquake occured in region: 4 km E Spezzano Piccolo (CS), on

  • 09-04-1985 01:16:54 (UTC)
  • 09-04-1985 03:16:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.3, 16.39 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
Spezzano Piccolo CS 4 2079 2079
Spezzano della Sila CS 4 4541 6620
Serra Pedace CS 4 986 7606
Celico CS 4 2802 10408
Pedace CS 5 1907 12315
Casole Bruzio CS 5 2578 14893
Rovito CS 6 3158 18051
Pietrafitta CS 6 1310 19361
Trenta CS 6 2633 21994
Lappano CS 7 941 22935
Aprigliano CS 7 2890 25825
Zumpano CS 8 2570 28395
San Pietro in Guarano CS 8 3663 32058
Piane Crati CS 9 1423 33481
Figline Vegliaturo CS 9 1137 34618
Cellara CS 10 504 35122
Castiglione Cosentino CS 10 2896 38018
Cosenza CS 11 67546 105564
Mangone CS 11 1891 107455
Santo Stefano di Rogliano CS 13 1725 109180
Dipignano CS 13 4376 113556
Paterno Calabro CS 13 1398 114954
Rose CS 14 4373 119327
Rogliano CS 14 5637 124964
Carolei CS 15 3330 128294
Parenti CS 15 2188 130482
Marzi CS 16 989 131471
Belsito CS 16 923 132394
Castrolibero CS 17 9894 142288
Mendicino CS 17 9450 151738
Domanico CS 18 943 152681
Rende CS 18 35338 188019
Carpanzano CS 18 255 188274
Cerisano CS 18 3196 191470
Marano Principato CS 18 3180 194650
Marano Marchesato CS 18 3553 198203
Luzzi CS 19 9396 207599
Malito CS 20 783 208382
Colosimi CS 20 1247 209629
Scigliano CS 20 1226 210855

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km E of Cosenza (67546 inhabitants)
36 Km N of Lamezia Terme (70714 inhabitants)
47 Km NW of Catanzaro (90612 inhabitants)
68 Km W of Crotone (62178 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 2.6 1985-04-09
01:16:54
39.3 16.39 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 4399
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-09 01:16:54 ± 0.512
Latitude 39.30 ± 0.03
Longitude 16.39 ± 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 4399

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) 4149
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 263
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.0013
Epicentral distance of station farthest from the epicenter (degree) 0.00672
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 4399
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:09:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ORI.Z. 1985-04-09T01:17:21.00 10.0 undecidable manual SG 3 0.0067 0.03 0.3
--.ORI.Z. 1985-04-09T01:17:10.50 10.0 undecidable manual PG 3 0.0067 0.56 0.1
--.CSI.Z. 1985-04-09T01:17:04.60 10.0 undecidable manual PG 351 0.0044 -0.48 0.3
--.ROI.Z. 1985-04-09T01:17:01.60 10.0 undecidable manual PG 26 0.0028 -0.07 2.1
--.ACI.Z. 1985-04-09T01:16:58.80 10.0 undecidable manual PG 290 0.0013 0.02 2.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download