Earthquake with magnitude of ML 1.9 on date 24-08-2005 and time 04:31:26 (Italy) in region SW Montieri (GR)

A magnitude ML 1.9 earthquake occured in region: SW Montieri (GR), on

  • 24-08-2005 02:31:26 (UTC)
  • 24-08-2005 04:31:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1300, 11.0140 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Montieri GR 0 1204 1204
Chiusdino SI 7 1903 3107
Castelnuovo di Val di Cecina PI 12 2231 5338
Monterotondo Marittimo GR 13 1371 6709
Massa Marittima GR 13 8375 15084
Monticiano SI 14 1571 16655
Radicondoli SI 15 914 17569
Roccastrada GR 18 9199 26768

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km SW of Siena (53903 inhabitants)
42 Km N of Grosseto (82087 inhabitants)
71 Km S of Scandicci (50609 inhabitants)
74 Km S of Firenze (382808 inhabitants)
74 Km SE of Livorno (159219 inhabitants)
80 Km W of Arezzo (99543 inhabitants)
82 Km SE of Pisa (89158 inhabitants)
84 Km S of Prato (191150 inhabitants)
90 Km SE of Lucca (89046 inhabitants)
90 Km S of Pistoia (90315 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 1.9
2005-08-24
02:31:26
43.13 11.014 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 531169
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-08-24 02:31:26 ± 0.25
Latitude 43.1300 ± 0.0126
Longitude 11.0140 ± 0.0209
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 531169

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1947
Semi-minor axis of confidence ellipse (meter) 1000
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 128
Circular confidence region, given by single value of horizontal uncertainty (meter) 2202.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 200
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.58
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.25725
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 531169
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:16:30

Md:2.5

Field Value
Value 2.5
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 531169
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:16:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARV.SHZ. 2005-08-24T02:31:53.04 10.0 undecidable manual Pg 0 0 0
IV.FSSB.SHZ. 2005-08-24T02:31:52.14 10.0 undecidable manual Pg 0 0 0
IV.GSCL.SHZ. 2005-08-24T02:31:51.11 0.3 undecidable manual Pg 346 139.5603 0.077 63
IV.ZCCA.SHZ. 2005-08-24T02:31:51.54 10.0 undecidable manual Pg 0 0 0
IV.ESLN.BHN. 2005-08-24T02:31:49.77 10.0 undecidable manual Pg 0 0 0
IV.FNVD.HHZ. 2005-08-24T02:31:47.11 0.1 undecidable manual Pg 4 115.3956 0.111 88
IV.PZZT.HHE. 2005-08-24T02:31:46.26 0.1 undecidable manual Pg 354 111.6993 -0.119 88
IV.BADI.EHN. 2005-08-24T02:31:46.08 0.1 undecidable manual Pg 67 107.9142 0.345 85
IV.SFI.EHZ. 2005-08-24T02:31:45.83 0.3 undecidable manual Pg 38 109.0131 -0.089 67
IV.MURB.HHN. 2005-08-24T02:31:45.04 10.0 undecidable manual Pg 0 0 0
IV.SEI.SHZ. 2005-08-24T02:31:45.68 0.1 undecidable manual Pg 15 106.2159 0.225 87
IV.BDI.HHE. 2005-08-24T02:31:45.67 0.1 positive manual Pg 342 108.7134 -0.204 87
IV.PGD.SHZ. 2005-08-24T02:31:44.78 0.1 undecidable manual Pg 34 100.3218 0.298 87
IV.CRE.SHZ. 2005-08-24T02:31:43.69 0.1 undecidable manual Pg 54 93.0402 0.429 86
IV.ARCI.HHZ. 2005-08-24T02:31:41.86 0.1 undecidable manual Sg 129 48.5181 -1.199 34
IV.PII.SHZ. 2005-08-24T02:31:40.36 0.1 undecidable manual Pg 329 76.5678 -0.146 94
IV.CSNT.BHE. 2005-08-24T02:31:40.43 0.1 undecidable manual Sg 30 44.1225 -1.309 32
IV.ARCI.HHZ. 2005-08-24T02:31:36.03 0.1 positive manual Pg 129 48.5181 0.199 98
IV.CSNT.BHE. 2005-08-24T02:31:34.94 0.1 positive manual Pg 30 44.1225 -0.148 100
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