Earthquake with magnitude of Md 2.4 on date 29-05-1991 and time 19:29:54 (UTC) in region Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria)

A magnitude Md 2.4 earthquake occured in region: Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria), on

  • 29-05-1991 19:29:54 (UTC)
  • 29-05-1991 21:29:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.6610, 15.6980 at 140 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 15 4900 4900
Tropea VV 18 6441 11341
Spilinga VV 19 1464 12805
Drapia VV 19 2085 14890
Joppolo VV 19 1926 16816
Parghelia VV 20 1300 18116

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km N of Messina (238439 inhabitants)
61 Km N of Reggio di Calabria (183035 inhabitants)
64 Km SW of Lamezia Terme (70714 inhabitants)
82 Km W of Catanzaro (90612 inhabitants)
85 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 2.4
ML-VAX 1.8
1991-05-29
19:29:54
38.661 15.698 141 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 142119
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-05-29 19:29:54 ± 1.337
Latitude 38.6610 ± 0.0537
Longitude 15.6980 ± 0.1373
Depth (km) 141 ± 12 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 142119

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) 13335.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
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) 0.00445
Epicentral distance of station farthest from the epicenter (degree) 0.02226
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 142119
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:12:40

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 142119
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(km) Takeoff_angle Residual Weight
--.BRT.Z. 1991-05-29T19:31:04.00 10.0 undecidable manual S 26 2.4753 -1.22 0.2
--.MMN.Z. 1991-05-29T19:30:42.40 10.0 undecidable manual S 10 1.2432 1.9 0.1
--.SE2.Z. 1991-05-29T19:30:34.50 10.0 undecidable manual S 66 0.8658 0.09 0.5
--.BRT.Z. 1991-05-29T19:30:32.00 10.0 undecidable manual P 26 2.4753 -3.42 0
--.GRI.Z. 1991-05-29T19:30:31.80 10.0 undecidable manual S 73 0.5883 0.21 0.5
--.GMB.Z. 1991-05-29T19:30:31.46 10.0 undecidable manual S 168 0.4995 1.41 0.2
--.CZI.Z. 1991-05-29T19:30:30.20 10.0 undecidable manual S 31 0.6438 -1.4 0.2
--.ATN.Z. 1991-05-29T19:30:29.49 10.0 undecidable manual S 200 0.5328 -0.86 0.4
--.FE2.Z. 1991-05-29T19:30:29.50 10.0 undecidable manual S 153 0.6882 -2.59 0
--.PA2.Z. 1991-05-29T19:30:28.85 10.0 undecidable manual S 107 0.6105 -2.34 0.1
--.MMN.Z. 1991-05-29T19:30:21.20 10.0 negative manual P 10 1.2432 0.05 2.2
--.CSI.Z. 1991-05-29T19:30:21.54 10.0 negative manual P 21 1.1988 0.74 1.8
--.ROI.Z. 1991-05-29T19:30:20.75 10.0 undecidable manual P 36 1.1211 0.74 0.9
--.TDS.Z. 1991-05-29T19:30:19.99 10.0 undecidable manual P 26 1.11 0.15 1.2
--.SE2.Z. 1991-05-29T19:30:18.28 10.0 positive manual P 66 0.8658 0.65 2.2
--.PA2.Z. 1991-05-29T19:30:16.42 10.0 positive manual P 107 0.6105 0.64 2.2
--.FE2.Z. 1991-05-29T19:30:16.55 10.0 positive manual P 153 0.6882 0.25 2.5
--.CZI.Z. 1991-05-29T19:30:16.70 10.0 positive manual P 31 0.6438 0.05 2.6
--.GRI.Z. 1991-05-29T19:30:16.36 10.0 undecidable manual P 73 0.5883 0.77 1
--.GMB.Z. 1991-05-29T19:30:15.15 10.0 undecidable manual P 168 0.4995 0.03 1.3
--.ATN.Z. 1991-05-29T19:30:14.23 10.0 undecidable manual P 200 0.5328 -1.07 0.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download