Earthquake with magnitude of ML 2.1 on date 12-04-2008 and time 19:00:24 (UTC) in region 2 km SE Montieri (GR)

A magnitude ML 2.1 earthquake occured in region: 2 km SE Montieri (GR), on

  • 12-04-2008 19:00:24 (UTC)
  • 12-04-2008 21:00:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1150, 11.0290 at 9 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 2 1204 1204
Chiusdino SI 7 1903 3107
Monticiano SI 13 1571 4678
Massa Marittima GR 13 8375 13053
Castelnuovo di Val di Cecina PI 14 2231 15284
Monterotondo Marittimo GR 14 1371 16655
Roccastrada GR 16 9199 25854
Radicondoli SI 16 914 26768

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km SW of Siena (53903 inhabitants)
40 Km N of Grosseto (82087 inhabitants)
73 Km S of Scandicci (50609 inhabitants)
75 Km S of Firenze (382808 inhabitants)
76 Km SE of Livorno (159219 inhabitants)
80 Km W of Arezzo (99543 inhabitants)
84 Km SE of Pisa (89158 inhabitants)
85 Km S of Prato (191150 inhabitants)
92 Km S of Pistoia (90315 inhabitants)
92 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 2.0
ML 2.1
2008-04-12
19:00:24
43.115 11.029 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 684709
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2008-04-12 19:00:24 ± 0.27
Latitude 43.1150 ± 0.0126
Longitude 11.0290 ± 0.0308
Depth (km) 9 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 684709

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2526
Semi-minor axis of confidence ellipse (meter) 1368
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 279
Circular confidence region, given by single value of horizontal uncertainty (meter) 2865.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
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) 0.9
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.02792
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 684709
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:58:42

Md:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 684709
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:58:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MGR.HHN. 2008-04-12T19:01:19.06 10.0 undecidable manual Pg 0 0 0
IV.SIRI.HHE. 2008-04-12T19:01:12.46 10.0 undecidable manual Pg 0 0 0
IV.SCHR.EHZ. 2008-04-12T19:01:12.72 10.0 undecidable manual Pg 0 0 0
IV.ZCCA.HHE. 2008-04-12T19:00:58.13 10.0 undecidable manual Pg 0 0 0
IV.FSSB.SHZ. 2008-04-12T19:00:52.13 10.0 undecidable manual Pg 0 0 0
IV.SEI.SHZ. 2008-04-12T19:00:48.63 10.0 undecidable manual Pg 0 0 0
IV.MAON.HHN. 2008-04-12T19:00:48.33 0.3 undecidable manual Sg 174 76.6677 0.612 61
IV.PARC.HHE. 2008-04-12T19:00:44.13 0.3 undecidable manual Pg 58 114.0969 0.527 59
IV.VMG.SHZ. 2008-04-12T19:00:42.99 0.3 undecidable manual Pg 24 102.6195 1.151 46
IV.CRE.HHZ. 2008-04-12T19:00:41.81 0.3 undecidable manual Pg 53 93.1401 1.446 40
IV.CSNT.HHZ. 2008-04-12T19:00:38.13 0.1 undecidable manual Sg 28 45.0216 -1.141 68
IV.MAON.HHN. 2008-04-12T19:00:38.58 0.1 undecidable manual Pg 174 76.6677 0.75 77
IV.ARCI.HHZ. 2008-04-12T19:00:38.95 0.1 undecidable manual Sg 129 46.5201 -0.732 82
IV.PII.SHZ. 2008-04-12T19:00:38.08 0.1 undecidable manual Pg 329 78.6657 -0.058 93
IV.CASP.HHZ. 2008-04-12T19:00:36.68 0.1 undecidable manual Sg 200 38.3283 -0.813 81
IV.ERBM.EHE. 2008-04-12T19:00:36.70 10.0 undecidable manual Pg 0 0 0
IV.ARCI.HHZ. 2008-04-12T19:00:33.27 0.1 positive manual Pg 129 46.5201 0.082 98
IV.CSNT.HHZ. 2008-04-12T19:00:32.63 0.1 positive manual Pg 28 45.0216 -0.321 94
IV.CASP.HHZ. 2008-04-12T19:00:31.85 0.1 undecidable manual Pg 200 38.3283 -0.074 100
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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