Earthquake with magnitude of Md 3.1 on date 19-02-1985 and time 20:25:04 (UTC) in region 6 km E Nicosia (EN)

A magnitude Md 3.1 earthquake occured in region: 6 km E Nicosia (EN), on

  • 19-02-1985 20:25:04 (UTC)
  • 19-02-1985 21:25:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.77, 14.46 at 6 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
Nicosia EN 6 13899 13899
Cerami EN 6 2006 15905
Gagliano Castelferrato EN 9 3593 19498
Capizzi ME 10 3176 22674
Sperlinga EN 10 805 23479
Nissoria EN 12 3000 26479
Troina EN 12 9373 35852
Agira EN 13 8345 44197
Leonforte EN 15 13439 57636
Assoro EN 16 5191 62827
Castel di Lucio ME 19 1294 64121

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km NE of Caltanissetta (63360 inhabitants)
62 Km NW of Catania (314555 inhabitants)
64 Km W of Acireale (52622 inhabitants)
80 Km N of Gela (75827 inhabitants)
90 Km E of Bagheria (55387 inhabitants)
91 Km N of Vittoria (63339 inhabitants)
92 Km NE of Agrigento (59770 inhabitants)
96 Km N of Ragusa (73313 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 3.1 1985-02-19
20:25:04
37.77 14.46 6 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 2019
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-19 20:25:04 ± 0.546
Latitude 37.77 ± 0.01
Longitude 14.46 ± 0.01
Depth (km) 6 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 2019

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) 1346
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.00364
Epicentral distance of station farthest from the epicenter (degree) 0.02574
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:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 2019
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:07:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SGO.Z. 1985-02-19T20:25:50.00 10.0 undecidable manual PN 12 0.0257 -0.4 0.7
--.ORI.Z. 1985-02-19T20:25:49.50 10.0 undecidable manual PN 33 0.0248 0.65 0.3
--.ROI.Z. 1985-02-19T20:25:44.70 10.0 undecidable manual PN 41 0.0219 0.17 1.1
--.CSI.Z. 1985-02-19T20:25:44.70 10.0 undecidable manual PN 34 0.0222 -0.25 1
--.RCI.Z. 1985-02-19T20:25:38.50 10.0 undecidable manual SG 69 0.0089 -0.36 0.5
--.PA1.Z. 1985-02-19T20:25:33.00 10.0 undecidable manual SG 153 0.0073 -0.3 0.8
--.FA1.Z. 1985-02-19T20:25:33.00 10.0 undecidable manual SG 231 0.0071 0.33 0.5
--.ERC.Z. 1985-02-19T20:25:31.50 10.0 undecidable manual PN 280 0.0135 -0.16 1.5
--.RCI.Z. 1985-02-19T20:25:24.50 10.0 undecidable manual PG 69 0.0089 0.24 2.8
--.MSI.Z. 1985-02-19T20:25:24.00 10.0 undecidable manual PG 62 0.0087 0.21 1.5
--.FA1.Z. 1985-02-19T20:25:21.50 10.0 undecidable manual PG 231 0.0071 0.81 0.3
--.PA1.Z. 1985-02-19T20:25:20.50 10.0 undecidable manual PG 153 0.0073 -0.55 0.7
--.GIB.Z. 1985-02-19T20:25:20.50 10.0 undecidable manual SG 302 0.0036 0.32 0.7
--.GIB.Z. 1985-02-19T20:25:13.00 10.0 positive manual PG 302 0.0036 -0.47 1.8
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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