Earthquake with magnitude of Md 3.0 on date 23-12-1990 and time 20:16:37 (Italy) in region Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria)

A magnitude Md 3.0 earthquake occured in region: Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria), on

  • 23-12-1990 19:16:37 (UTC)
  • 23-12-1990 20:16:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.63, 15.7 at 112 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 14 4900 4900
Spilinga VV 18 1464 6364
Tropea VV 18 6441 12805
Joppolo VV 18 1926 14731
Drapia VV 18 2085 16816
Parghelia VV 20 1300 18116

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km N of Messina (238439 inhabitants)
58 Km N of Reggio di Calabria (183035 inhabitants)
66 Km SW of Lamezia Terme (70714 inhabitants)
83 Km W of Catanzaro (90612 inhabitants)
88 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 3.0
ML-VAX 2.5
1990-12-23
19:16:37
38.63 15.71 112 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 132969
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-12-23 19:16:37 ± 0.492
Latitude 38.63 ± 0.02
Longitude 15.71 ± 0.06
Depth (km) 112 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 132969

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) 6091
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 146
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 33
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00154
Epicentral distance of station farthest from the epicenter (degree) 0.02364
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

Md:3

Field Value
Value 3
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 132969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:03:54

ML:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 132969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.LCI.Z. 1990-12-23T19:17:45.50 10.0 undecidable manual S 46 0.0226 -1.25 0.1
--.BRT.Z. 1990-12-23T19:17:44.50 10.0 undecidable manual S 26 0.0224 -1.79 0
--.SGO.Z. 1990-12-23T19:17:34.15 10.0 undecidable manual S 351 0.0175 0.06 0.5
--.MEU.Z. 1990-12-23T19:17:28.17 10.0 undecidable manual S 204 0.015 0.11 0.5
--.PZI.Z. 1990-12-23T19:17:28.00 10.0 undecidable manual S 201 0.0151 -0.45 0.4
--.ORI.Z. 1990-12-23T19:17:27.00 10.0 undecidable manual S 21 0.0137 1.88 0
--.CSI.Z. 1990-12-23T19:17:21.00 10.0 undecidable manual S 21 0.0111 1.76 0
--.ROI.Z. 1990-12-23T19:17:20.20 10.0 undecidable manual S ! 35 0.0104 2.61 0
--.LCI.Z. 1990-12-23T19:17:18.00 10.0 negative manual P 46 0.0226 0.51 1.6
--.BAI.Z. 1990-12-23T19:17:18.00 10.0 undecidable manual P 19 0.0236 -1.01 0.4
--.BRT.Z. 1990-12-23T19:17:16.50 10.0 undecidable manual P 26 0.0224 -1.17 0.3
--.TDS.Z. 1990-12-23T19:17:16.64 10.0 undecidable manual S 25 0.0102 -0.7 0.4
--.PE1.Z. 1990-12-23T19:17:16.50 10.0 undecidable manual P 30 0.0228 -1.31 0.2
--.SGO.Z. 1990-12-23T19:17:11.70 10.0 undecidable manual P 351 0.0175 0.89 0.6
--.SOI.Z. 1990-12-23T19:17:09.22 10.0 undecidable manual S 153 0.0056 0.38 0.5
--.MO9.Z. 1990-12-23T19:17:08.43 10.0 undecidable manual S 180 0.0057 -0.51 0.5
--.PZI.Z. 1990-12-23T19:17:07.00 10.0 undecidable manual P 201 0.0151 0.07 1.3
--.GMB.Z. 1990-12-23T19:17:06.45 10.0 undecidable manual S 168 0.0042 -0.56 0.4
--.ATN.Z. 1990-12-23T19:17:06.50 10.0 undecidable manual S 202 0.0045 -0.92 0.3
--.MEU.Z. 1990-12-23T19:17:06.82 10.0 undecidable manual P 204 0.015 0.12 1.3
--.MSI.Z. 1990-12-23T19:17:06.00 10.0 undecidable manual S 195 0.004 -0.7 0.4
--.ORI.Z. 1990-12-23T19:17:05.50 10.0 undecidable manual P 21 0.0137 0.5 1.1
--.ROI.Z. 1990-12-23T19:17:02.12 10.0 undecidable manual P 35 0.0104 1.46 0.2
--.CSI.Z. 1990-12-23T19:17:02.48 10.0 undecidable manual P 21 0.0111 0.87 0.7
--.MMN.Z. 1990-12-23T19:17:01.50 10.0 undecidable manual P 10 0.0114 -0.53 1.2
--.TDS.Z. 1990-12-23T19:17:00.40 10.0 negative manual P 25 0.0102 -0.11 3
--.MO9.Z. 1990-12-23T19:16:56.20 10.0 negative manual P 180 0.0057 0.55 2.3
--.SOI.Z. 1990-12-23T19:16:55.95 10.0 negative manual P 153 0.0056 0.35 2.7
--.MSI.Z. 1990-12-23T19:16:54.00 10.0 positive manual P 195 0.004 -0.36 2.7
--.GMB.Z. 1990-12-23T19:16:54.87 10.0 undecidable manual P 168 0.0042 0.32 1.4
--.ATN.Z. 1990-12-23T19:16:54.50 10.0 negative manual P 202 0.0045 -0.28 2.8
--.GA2.Z. 1990-12-23T19:16:54.76 10.0 undecidable manual P 168 0.0042 0.21 1.5
--.DR2.Z. 1990-12-23T19:16:52.93 10.0 negative manual P 86 0.0015 -0.27 2.8
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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