Earthquake with magnitude of ML 2.1 on date 11-04-2007 and time 21:32:32 (Italy) in region Tirreno Centrale (MARE)

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

  • 11-04-2007 19:32:32 (UTC)
  • 11-04-2007 21:32:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 40.7190, 12.9000 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

An earthquake occurred to
83 Km S of Latina (125985 inhabitants)
84 Km S of Anzio (54211 inhabitants)
100 Km S of Aprilia (73446 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 2.1
2007-04-11
19:32:32
40.719 12.9 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 623939
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2007-04-11 19:32:32 ± 0.82
Latitude 40.7190 ± 0.0441
Longitude 12.9000 ± 0.0439
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 623939

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 5632
Semi-minor axis of confidence ellipse (meter) 2421
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 33
Circular confidence region, given by single value of horizontal uncertainty (meter) 6140.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 255
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.86
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.50367
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 623939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:53:12

Md:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 623939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:53:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CERT.HHN. 2007-04-11T19:33:13.10 0.3 undecidable manual Sg 3 136.5633 1.171 21
IV.VVLD.BHZ. 2007-04-11T19:33:12.24 0.6 undecidable manual Sg 25 141.1476 -0.897 16
IV.TOLF.HHZ. 2007-04-11T19:32:59.85 0.3 undecidable manual Pg 334 166.9107 -0.203 54
IV.VAGA.HHE. 2007-04-11T19:32:56.24 0.3 undecidable manual Pg 55 135.6642 1.006 46
IV.CERA.HHZ. 2007-04-11T19:32:56.02 0.3 undecidable manual Pg 43 134.9649 0.896 48
IV.VVLD.BHZ. 2007-04-11T19:32:55.46 0.1 undecidable manual Pg 25 141.1476 -0.615 71
IV.CERT.HHN. 2007-04-11T19:32:55.21 0.1 undecidable manual Pg 3 136.5633 -0.167 81
IV.SDI.SHZ. 2007-04-11T19:32:54.82 0.1 undecidable manual Pg 34 133.5663 -0.096 83
IV.VENT.EHZ. 2007-04-11T19:32:46.53 0.3 undecidable manual Sg 79 44.622 -0.839 29
IV.VENT.EHZ. 2007-04-11T19:32:41.23 0.1 undecidable manual Pg 79 44.622 0.029 100
IV.SCHR.EHN. 2007-04-11T19:32:27.57 10.0 undecidable manual Pg 0 0 0
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