Earthquake with magnitude of Md 2.3 on date 27-03-2004 and time 11:00:59 (Italy) in region Costa Marchigiana Anconetana (Ancona)

A magnitude Md 2.3 earthquake occured in region: Costa Marchigiana Anconetana (Ancona), on

  • 27-03-2004 10:00:59 (UTC)
  • 27-03-2004 11:00:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.7340, 13.3880 at 10 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
Montemarciano AN 12 9992 9992
Falconara Marittima AN 12 26565 36557
Senigallia AN 14 45027 81584
Chiaravalle AN 16 14796 96380
Ancona AN 17 100861 197241
Monte San Vito AN 17 6848 204089
Camerata Picena AN 17 2567 206656

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NW of Ancona (100861 inhabitants)
32 Km E of Fano (60888 inhabitants)
43 Km E of Pesaro (94582 inhabitants)
75 Km E of Rimini (147750 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 2.3
ML-VAX 1.5
2004-03-27
10:00:59
43.734 13.388 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 495489
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2004-03-27 10:00:59 ± 0.347
Latitude 43.7340 ± 0.0115
Longitude 13.3880 ± 0.0248
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 495489

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) 2368.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 287
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00356
Epicentral distance of station farthest from the epicenter (degree) 0.00826
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 495489
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:53:12

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 495489
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
--.ASS.Z. 2004-03-27T10:01:28.92 10.0 undecidable manual SG 218 0.8547 -0.22 0.4
--.SNTG.Z. 2004-03-27T10:01:20.33 10.0 undecidable manual SG 213 0.5772 0.15 0.6
--.NRCA.Z. 2004-03-27T10:01:18.21 10.0 undecidable manual PG 192 0.9213 0.32 0.5
--.FSSB.Z. 2004-03-27T10:01:16.21 10.0 undecidable manual SG 264 0.444 0.39 0.2
--.ASS.Z. 2004-03-27T10:01:16.60 10.0 undecidable manual PG 218 0.8547 -0.09 1.6
--.SNTG.Z. 2004-03-27T10:01:11.27 10.0 undecidable manual PG 213 0.5772 -0.25 1
--.FSSB.Z. 2004-03-27T10:01:08.89 10.0 undecidable manual PG 264 0.444 -0.11 1.8
--.ARV.Z. 2004-03-27T10:01:08.90 10.0 undecidable manual PG 233 0.3996 -0.08 1.9
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