Earthquake with magnitude of Md 2.5 on date 06-03-2004 and time 04:04:50 (UTC) in region 10 km SW Catania (CT)

A magnitude Md 2.5 earthquake occured in region: 10 km SW Catania (CT), on

  • 06-03-2004 04:04:50 (UTC)
  • 06-03-2004 05:04:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.4210, 15.0410 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Catania CT 10 314555 314555
Misterbianco CT 12 49410 363965
Motta Sant'Anastasia CT 12 12116 376081
Lentini SR 16 24085 400166
Sant'Agata li Battiati CT 16 9479 409645
Gravina di Catania CT 16 25838 435483
Carlentini SR 16 17798 453281
Camporotondo Etneo CT 17 5023 458304
San Pietro Clarenza CT 17 7743 466047
Mascalucia CT 17 31958 498005
San Gregorio di Catania CT 17 11966 509971
Tremestieri Etneo CT 18 20589 530560
Aci Castello CT 18 18723 549283
San Giovanni la Punta CT 18 23060 572343
Valverde CT 19 7840 580183
Belpasso CT 20 28108 608291

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km SW of Catania (314555 inhabitants)
24 Km SW of Acireale (52622 inhabitants)
46 Km NW of Siracusa (122291 inhabitants)
62 Km NE of Ragusa (73313 inhabitants)
67 Km NE of Modica (54633 inhabitants)
69 Km NE of Vittoria (63339 inhabitants)
80 Km NE of Gela (75827 inhabitants)
87 Km E of Caltanissetta (63360 inhabitants)
93 Km SW of Reggio di Calabria (183035 inhabitants)
97 Km SW of Messina (238439 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 2004-03-06
04:04:50
37.421 15.041 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 494489
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2004-03-06 04:04:50 ± 0.534
Latitude 37.4210 ± 0.0213
Longitude 15.0410 ± 0.0366
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 494489

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) 4011.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 290
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00243
Epicentral distance of station farthest from the epicenter (degree) 0.00696
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 494489
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:52:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.MNO.Z. 2004-03-06T04:05:11.10 10.0 undecidable manual SG 331 0.5772 -1.01 0.1
--.MTTG.Z. 2004-03-06T04:05:06.24 10.0 undecidable manual PG 41 0.777 -0.49 0.8
--.MNO.Z. 2004-03-06T04:05:03.90 10.0 undecidable manual PG 331 0.5772 0.07 1.8
--.ESPD.Z. 2004-03-06T04:05:01.24 10.0 undecidable manual SG 358 0.2664 -0.14 0.8
--.ECC.Z. 2004-03-06T04:05:01.89 10.0 undecidable manual SG 3 0.2886 -0.02 0.9
--.ESPD.Z. 2004-03-06T04:04:57.24 10.0 undecidable manual PG 358 0.2664 0.42 1.4
--.ECC.Z. 2004-03-06T04:04:57.60 10.0 undecidable manual PG 3 0.2886 0.47 1.2
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