Earthquake with magnitude of ML 2.1 on date 14-02-2009 and time 22:33:35 (Italy) in region 3 km E Montieri (GR)

A magnitude ML 2.1 earthquake occured in region: 3 km E Montieri (GR), on

  • 14-02-2009 21:33:35 (UTC)
  • 14-02-2009 22:33:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1330, 11.0570 at 2 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
Montieri GR 3 1204 1204
Chiusdino SI 4 1903 3107
Monticiano SI 10 1571 4678
Radicondoli SI 14 914 5592
Castelnuovo di Val di Cecina PI 15 2231 7823
Roccastrada GR 16 9199 17022
Monterotondo Marittimo GR 16 1371 18393
Massa Marittima GR 16 8375 26768

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km SW of Siena (53903 inhabitants)
42 Km N of Grosseto (82087 inhabitants)
70 Km S of Scandicci (50609 inhabitants)
73 Km S of Firenze (382808 inhabitants)
76 Km SE of Livorno (159219 inhabitants)
77 Km W of Arezzo (99543 inhabitants)
83 Km S of Prato (191150 inhabitants)
84 Km SE of Pisa (89158 inhabitants)
90 Km S of Pistoia (90315 inhabitants)
91 Km SE of Lucca (89046 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 1.9
ML 2.1
2009-02-14
21:33:35
43.133 11.057 2 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 744239
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-14 21:33:35 ± 0.26
Latitude 43.1330 ± 0.0099
Longitude 11.0570 ± 0.0222
Depth (km) 2 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 744239

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1895
Semi-minor axis of confidence ellipse (meter) 1000
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 284
Circular confidence region, given by single value of horizontal uncertainty (meter) 2109.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.61
Epicentral distance of station closest to the epicenter (degree) 0.36962
Epicentral distance of station farthest from the epicenter (degree) 0.70417
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 744239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:04:28

Md:1.9

Field Value
Value 1.9
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 744239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:04:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARCI.HHZ. 2009-02-14T21:33:50.90 0.3 undecidable manual Sg 132 46.1205 -0.409 74
IV.CASP.HHN. 2009-02-14T21:33:49.01 0.1 undecidable manual Sg 202 41.0256 -0.558 95
IV.PII.SHZ. 2009-02-14T21:33:49.97 0.3 undecidable manual Pg 327 78.1662 0.038 75
IV.CSNT.HHZ. 2009-02-14T21:33:49.39 0.1 undecidable manual Sg 26 42.1245 -0.554 95
IV.ARCI.HHZ. 2009-02-14T21:33:45.19 0.1 positive manual Pg 132 46.1205 0.643 91
IV.CSNT.HHZ. 2009-02-14T21:33:44.14 0.1 undecidable manual Pg 26 42.1245 0.383 100
IV.CASP.HHN. 2009-02-14T21:33:43.92 0.1 undecidable manual Pg 202 41.0256 0.383 100
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