Earthquake with magnitude of ML 2.1 on date 28-03-2009 and time 10:38:18 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 2.1 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 28-03-2009 09:38:18 (UTC)
  • 28-03-2009 10:38:18 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.8220, 13.4690 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
79 Km N of Palermo (674435 inhabitants)
83 Km N of Bagheria (55387 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 2.1
2009-03-28
09:38:18
38.822 13.469 5 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 752569
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-03-28 09:38:18 ± 0.97
Latitude 38.8220 ± 0.0836
Longitude 13.4690 ± 0.0231
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 752569

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 9316
Semi-minor axis of confidence ellipse (meter) 1684
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 354
Circular confidence region, given by single value of horizontal uncertainty (meter) 9512.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 229
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 4
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.99735
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 752569
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:13:46

Md:2.3

Field Value
Value 2.3
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 752569
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:13:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IFIL.BHZ. 2009-03-28T09:38:39.91 10.0 undecidable manual Pg 0 0 0
IV.CSLB.SHZ. 2009-03-28T09:38:37.70 0.3 undecidable manual Pg 152 110.7003 0.213 87
I1.IACL.BHE. 2009-03-28T09:38:32.97 0.3 undecidable manual Pg 112 83.1501 -0.271 91
IV.USI.SHZ. 2009-03-28T09:38:27.76 0.6 undecidable manual Sg 243 28.1496 -0.381 66
IV.USI.SHZ. 2009-03-28T09:38:24.26 0.3 undecidable manual Pg 243 28.1496 0.308 100
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
Waveforms Seismic signals in miniseed + resp format Download