Earthquake with magnitude of ML 1.9 on date 25-04-2009 and time 17:44:04 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 1.9 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 25-04-2009 15:44:04 (UTC)
  • 25-04-2009 17:44:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.3800, 14.9620 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 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 1.9
2009-04-25
15:44:04
39.38 14.962 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 835029
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-04-25 15:44:04 ± 0.47
Latitude 39.3800 ± 0.0198
Longitude 14.9620 ± 0.0291
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 835029

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2474
Semi-minor axis of confidence ellipse (meter) 2211
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 285
Circular confidence region, given by single value of horizontal uncertainty (meter) 3330.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 326
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.13944
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 835029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:50:07

Md:2.3

Field Value
Value 2.3
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 835029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 15:50:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2009-04-25T15:45:00.25 10.0 undecidable manual Pg 0 0 0
IV.ORI.EHE. 2009-04-25T15:45:00.05 10.0 undecidable manual Pg 0 0 0
IV.PTQR.SHZ. 2009-04-25T15:44:52.70 10.0 undecidable manual Pg 0 0 0
I1.HAGA.BHN. 2009-04-25T15:44:51.22 10.0 undecidable manual Pg 0 0 0
IV.LAV9.SHZ. 2009-04-25T15:44:51.20 10.0 undecidable manual Pg 0 0 0
IV.CDRU.HHE. 2009-04-25T15:44:40.92 0.1 undecidable manual Sg 13 126.4734 0.251 92
IV.SIRI.HHN. 2009-04-25T15:44:38.34 0.3 undecidable manual Sg 41 117.7932 -0.012 74
IV.CARO.HHN. 2009-04-25T15:44:36.86 10.0 undecidable manual Pg 0 0 0
IV.CMPR.HHE. 2009-04-25T15:44:35.50 0.1 undecidable manual Sg 15 108.0141 -0.246 96
MN.CUC.HHZ. 2009-04-25T15:44:33.24 0.1 undecidable manual Sg 47 99.7224 -0.292 97
IV.SBPO.HHE. 2009-04-25T15:44:32.50 10.0 undecidable manual Pg 0 0 0
IV.BULG.HHN. 2009-04-25T15:44:29.92 0.1 undecidable manual Sg 24 85.1481 0.274 100
IV.CDRU.HHE. 2009-04-25T15:44:24.79 0.1 undecidable manual Pg 13 126.4734 -0.473 88
IV.STR3.BHZ. 2009-04-25T15:44:24.05 10.0 undecidable manual Pg 0 0 0
IV.SIRI.HHN. 2009-04-25T15:44:23.61 0.1 undecidable manual Pg 41 117.7932 -0.314 93
IV.CMPR.HHE. 2009-04-25T15:44:22.31 0.1 undecidable manual Pg 15 108.0141 -0.11 99
MN.CUC.HHZ. 2009-04-25T15:44:21.70 0.1 undecidable manual Pg 47 99.7224 0.561 90
IV.BULG.HHN. 2009-04-25T15:44:19.24 0.1 undecidable manual Pg 24 85.1481 0.341 99
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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