Earthquake with magnitude of Md 2.4 on date 22-07-1999 and time 23:37:53 (Italy) 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

  • 22-07-1999 21:37:53 (UTC)
  • 22-07-1999 23:37:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.0050, 15.9930 at 58 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
Serra d'Aiello CS 15 458 458
Falerna CZ 15 4028 4486
Nocera Terinese CZ 15 4731 9217
Amantea CS 16 13975 23192
San Pietro in Amantea CS 18 505 23697
San Mango d'Aquino CZ 18 1564 25261
Belmonte Calabro CS 19 2003 27264
Gizzeria CZ 19 4982 32246
Cleto CS 20 1301 33547
Aiello Calabro CS 20 1729 35276

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km W of Lamezia Terme (70714 inhabitants)
39 Km SW of Cosenza (67546 inhabitants)
53 Km W of Catanzaro (90612 inhabitants)
98 Km NE of Messina (238439 inhabitants)
98 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
Bulletin
Rev1000
Md 2.4
ML-VAX 1.7
1999-07-22
21:37:53
39.005 15.993 58 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 370919
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-07-22 21:37:53 ± 0.38
Latitude 39.0050 ± 0.0105
Longitude 15.9930 ± 0.0456
Depth (km) 58 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 370919

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) 4105.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00340
Epicentral distance of station farthest from the epicenter (degree) 0.01060
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 370919
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:48:03

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 5
Type of magnitude ML
Reference to an origin 370919
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
--.MGR.Z. 1999-07-22T21:38:29.70 10.0 undecidable manual S 343 1.1766 0.42 0.3
--.SOI.Z. 1999-07-22T21:38:24.33 10.0 undecidable manual S 177 0.9213 0.68 0.1
--.TDS.Z. 1999-07-22T21:38:19.23 10.0 undecidable manual S 22 0.6993 0.52 0.2
--.SC9.Z. 1999-07-22T21:38:19.79 10.0 undecidable manual S 196 0.777 -0.45 0.3
--.MGR.Z. 1999-07-22T21:38:14.17 10.0 undecidable manual P 343 1.1766 -0.12 1.6
--.GRI.Z. 1999-07-22T21:38:12.20 10.0 undecidable manual S 118 0.3774 -0.2 0.7
--.SOI.Z. 1999-07-22T21:38:11.14 10.0 undecidable manual P 177 0.9213 0.1 1.9
--.SC9.Z. 1999-07-22T21:38:08.92 10.0 undecidable manual P 196 0.777 -0.15 1.9
--.TDS.Z. 1999-07-22T21:38:07.77 10.0 undecidable manual P 22 0.6993 -0.41 0.9
--.GRI.Z. 1999-07-22T21:38:04.52 10.0 undecidable manual P 118 0.3774 -0.02 2.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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