Earthquake with magnitude of ML 2.5 on date 20-08-2005 and time 20:00:33 (Italy) in region Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria)

A magnitude ML 2.5 earthquake occured in region: Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria), on

  • 20-08-2005 18:00:33 (UTC)
  • 20-08-2005 20:00:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.5790, 15.6400 at 93 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km N of Messina (238439 inhabitants)
52 Km N of Reggio di Calabria (183035 inhabitants)
74 Km SW of Lamezia Terme (70714 inhabitants)
91 Km W of Catanzaro (90612 inhabitants)
96 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 2.5
ML 2.5
2005-08-20
18:00:33
38.579 15.64 93 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 530679
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-08-20 18:00:33 ± 0.43
Latitude 38.5790 ± 0.0270
Longitude 15.6400 ± 0.0380
Depth (km) 93 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 530679

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2868
Semi-minor axis of confidence ellipse (meter) 2356
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 87
Circular confidence region, given by single value of horizontal uncertainty (meter) 4459.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.79
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.61608
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.9
Num. used stations
Type of magnitude ML
Reference to an origin 530679
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:16:00

Md:2.5

Field Value
Value 2.5
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 530679
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:16:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MGR.EHE. 2005-08-20T18:01:21.80 10.0 undecidable manual Sg 0 0 0
IV.MGR.EHE. 2005-08-20T18:01:12.92 10.0 undecidable manual Pg 0 0 0
IV.GRI.EHN. 2005-08-20T18:01:03.42 10.0 undecidable manual Sg 0 0 0
IV.GMB.SHZ. 2005-08-20T18:01:02.03 0.1 undecidable manual Sg 160 48.4182 1.225 29
IV.SOI.EHZ. 2005-08-20T18:01:02.60 0.3 undecidable manual Sg 147 66.6777 -0.578 33
IV.PZI.SHZ. 2005-08-20T18:01:00.82 0.1 undecidable manual Pg 200 179.3871 -1.196 40
IV.HVZN.BHE. 2005-08-20T18:01:00.62 0.1 undecidable manual Pg 208 175.1913 -0.91 48
IV.MSRU.BHZ. 2005-08-20T18:00:59.30 0.1 undecidable manual Sg 198 36.8298 -0.294 49
MN.CEL.HHN. 2005-08-20T18:00:59.18 0.1 undecidable manual Sg 148 41.7249 -0.889 42
IV.MSI.SHZ. 2005-08-20T18:00:59.00 10.0 undecidable manual Pg 0 0 0
MN.CUC.HHE. 2005-08-20T18:00:58.41 0.1 undecidable manual Pg 5 157.62 -1.104 56
IV.SCLL.SHZ. 2005-08-20T18:00:58.43 0.1 undecidable manual Sg 170 36.4413 -1.128 38
IV.GRI.EHN. 2005-08-20T18:00:55.04 10.0 undecidable manual Pg 0 0 0
MN.TIP.HHN. 2005-08-20T18:00:55.57 0.1 undecidable manual Pg 55 117.2937 0.501 74
I1.MMME.BHZ. 2005-08-20T18:00:51.84 0.1 negative manual Pg 205 78.9654 0.54 85
IV.ILLI.BHZ. 2005-08-20T18:00:50.52 0.1 undecidable manual Pg 256 61.8936 0.646 84
IV.SOI.EHZ. 2005-08-20T18:00:50.34 0.1 undecidable manual Pg 147 66.6777 0.085 94
IV.MTTG.SHZ. 2005-08-20T18:00:50.48 0.1 undecidable manual Pg 175 64.0914 0.432 88
IV.IVPL.BHZ. 2005-08-20T18:00:50.01 0.1 undecidable manual Pg 249 61.5939 0.159 94
IV.GMB.SHZ. 2005-08-20T18:00:49.25 0.1 undecidable manual Pg 160 48.4182 0.329 92
MN.CEL.HHN. 2005-08-20T18:00:48.32 0.1 undecidable manual Pg 148 41.7249 -0.186 97
IV.SCLL.SHZ. 2005-08-20T18:00:48.22 0.1 undecidable manual Pg 170 36.4413 -0.001 100
IV.MSRU.BHZ. 2005-08-20T18:00:48.31 0.1 undecidable manual Pg 198 36.8298 0.068 99
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download