Earthquake with magnitude of Md 2.5 on date 27-07-2004 and time 16:02:32 (UTC) in region Costa Calabra sud occidentale (Catanzaro, Vibo Valentia, Reggio di Calabria)

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

  • 27-07-2004 16:02:32 (UTC)
  • 27-07-2004 18:02:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.9420, 15.8350 at 5 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
42 Km W of Lamezia Terme (70714 inhabitants)
54 Km SW of Cosenza (67546 inhabitants)
66 Km W of Catanzaro (90612 inhabitants)
87 Km N of Messina (238439 inhabitants)
94 Km N of Reggio di Calabria (183035 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-VAX 2.0
2004-07-27
16:02:32
38.942 15.835 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 501989
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2004-07-27 16:02:32 ± 0.185
Latitude 38.9420 ± 0.0111
Longitude 15.8350 ± 0.0507
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 501989

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) 4554.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.00615
Epicentral distance of station farthest from the epicenter (degree) 0.01498
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 7
Type of magnitude Md
Reference to an origin 501989
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 01:00:03

ML:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 5
Type of magnitude ML
Reference to an origin 501989
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
--.SGO.Z. 2004-07-27T16:03:24.99 10.0 undecidable manual SN 346 1.665 0.55 0.4
--.MGR.Z. 2004-07-27T16:03:13.22 10.0 undecidable manual SN 349 1.1988 -0.47 0.6
--.MTTG.Z. 2004-07-27T16:03:07.23 10.0 undecidable manual SG 186 0.9435 1.05 0.1
--.SGO.Z. 2004-07-27T16:03:03.24 10.0 undecidable manual PN 346 1.665 0.54 1
--.SCLL.Z. 2004-07-27T16:02:57.60 10.0 undecidable manual SG 187 0.6882 -0.45 0.6
--.MGR.Z. 2004-07-27T16:02:56.12 10.0 undecidable manual PN 349 1.1988 -0.36 1.6
--.MMME.Z. 2004-07-27T16:02:54.10 10.0 undecidable manual PN 204 1.0989 -0.89 0.6
--.MTTG.Z. 2004-07-27T16:02:51.59 10.0 undecidable manual PG 186 0.9435 -0.56 1.2
--.TDS.Z. 2004-07-27T16:02:49.82 10.0 undecidable manual PG 28 0.8103 0.06 2.1
--.SCLL.Z. 2004-07-27T16:02:48.10 10.0 undecidable manual PG 187 0.6882 0.55 1.3
--.MSRU.Z. 2004-07-27T16:02:48.47 10.0 undecidable manual PG 200 0.7215 0.39 1.6
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download