Earthquake with magnitude of ML 2.0 on date 21-03-2010 and time 08:05:55 (Italy) in region Tirreno Centrale (MARE)

A magnitude ML 2.0 earthquake occured in region: Tirreno Centrale (MARE), on

  • 21-03-2010 07:05:55 (UTC)
  • 21-03-2010 08:05:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 40.7130, 12.7600 at 25 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 Anzio (54211 inhabitants)
85 Km S of Latina (125985 inhabitants)
99 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 2.3
ML 2.0
2010-03-21
07:05:55
40.713 12.76 25 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1021759
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-03-21 07:05:55 ± 0.61
Latitude 40.7130 ± 0.0225
Longitude 12.7600 ± 0.0427
Depth (km) 25 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1021759

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3583
Semi-minor axis of confidence ellipse (meter) 2223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 75
Circular confidence region, given by single value of horizontal uncertainty (meter) 4382.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 288
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.65
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.32560
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 1021759
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:37:09

Md:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1021759
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:37:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CDCA.EHE. 2010-03-21T07:06:56.79 10.0 undecidable manual Pg 0 0 0
IV.VCEL.EHE. 2010-03-21T07:06:39.50 10.0 undecidable manual Pg 0 0 0
IV.VVLD.HHZ. 2010-03-21T07:06:36.93 0.6 undecidable manual Sg 29 147.1416 0.534 37
IV.CERT.HHE. 2010-03-21T07:06:35.42 0.6 undecidable manual Sg 8 138.3615 0.905 32
IV.GUAR.HHZ. 2010-03-21T07:06:32.69 0.6 undecidable manual Sg 21 128.5713 0.345 40
IV.ORI.HHN. 2010-03-21T07:06:28.78 10.0 undecidable manual Pg 0 0 0
IV.MODR.HHE. 2010-03-21T07:06:25.47 0.3 undecidable manual Sg 62 105.2169 -0.716 58
IV.GIUL.HHZ. 2010-03-21T07:06:24.92 0.6 undecidable manual Sg 24 102.5196 -0.534 42
IV.SDI.SHZ. 2010-03-21T07:06:19.72 10.0 undecidable manual Pn 0 0 0
IV.VVLD.HHZ. 2010-03-21T07:06:18.26 0.3 undecidable manual Pn 29 147.1416 -0.795 50
IV.GUAR.HHZ. 2010-03-21T07:06:17.19 0.6 undecidable manual Pn 21 128.5713 0.474 39
IV.CERT.HHE. 2010-03-21T07:06:17.58 0.1 undecidable manual Pn 8 138.3615 -0.389 79
IV.SBPO.HHN. 2010-03-21T07:06:14.52 10.0 undecidable manual Pg 0 0 0
IV.VENT.EHZ. 2010-03-21T07:06:13.46 0.1 undecidable manual Sg 80 56.2992 0.057 100
IV.MODR.HHE. 2010-03-21T07:06:12.98 0.1 undecidable manual Pn 62 105.2169 -0.18 88
IV.GIUL.HHZ. 2010-03-21T07:06:12.98 0.1 undecidable manual Pn 24 102.5196 0.243 87
IV.VENT.EHZ. 2010-03-21T07:06:06.28 0.1 undecidable manual Pn 80 56.2992 0.499 92
IV.ESLN.HHZ. 2010-03-21T07:05:58.40 10.0 undecidable manual Pg 0 0 0
IV.GRI.EHZ. 2010-03-21T07:05:55.90 10.0 undecidable manual Pg 0 0 0
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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