Earthquake with magnitude of Md 2.0 on date 21-02-2000 and time 11:27:03 (Italy) in region E Asciano (SI)

A magnitude Md 2.0 earthquake occured in region: E Asciano (SI), on

  • 21-02-2000 10:27:03 (UTC)
  • 21-02-2000 11:27:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.2360, 11.5640 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
Asciano SI 0 7118 7118
Rapolano Terme SI 7 5249 12367
San Giovanni d'Asso SI 9 853 13220
Trequanda SI 10 1254 14474
Monteroni d'Arbia SI 11 9088 23562
Buonconvento SI 13 3173 26735
Castelnuovo Berardenga SI 13 9097 35832
Sinalunga SI 14 12764 48596
Lucignano AR 16 3581 52177
Murlo SI 16 2389 54566
Monte San Savino AR 17 8743 63309
Torrita di Siena SI 19 7434 70743
San Quirico d'Orcia SI 20 2662 73405
Marciano della Chiana AR 20 3466 76871
Pienza SI 20 2107 78978

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Siena (53903 inhabitants)
36 Km SW of Arezzo (99543 inhabitants)
64 Km NE of Grosseto (82087 inhabitants)
64 Km SE of Firenze (382808 inhabitants)
66 Km SE of Scandicci (50609 inhabitants)
68 Km W of Perugia (166134 inhabitants)
81 Km SE of Prato (191150 inhabitants)
94 Km SE of Pistoia (90315 inhabitants)
98 Km W of Foligno (57155 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 2000-02-21
10:27:03
43.236 11.564 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 382859
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2000-02-21 10:27:03 ± 0.276
Latitude 43.2360 ± 0.0148
Longitude 11.5640 ± 0.0150
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 382859

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 2043.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 222
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00275
Epicentral distance of station farthest from the epicenter (degree) 0.00583
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 382859
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:59:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.PGD.Z. 2000-02-21T10:27:26.59 10.0 undecidable manual SG 9 0.6438 0.03 0.7
--.CRE.Z. 2000-02-21T10:27:20.49 10.0 undecidable manual SG 35 0.4662 -0.5 0.3
--.GRFL.Z. 2000-02-21T10:27:20.46 10.0 undecidable manual SG 258 0.4329 0.68 0.1
--.PGD.Z. 2000-02-21T10:27:17.34 10.0 undecidable manual PG 9 0.6438 0.39 0.9
--.CSNT.Z. 2000-02-21T10:27:15.49 10.0 undecidable manual SG 319 0.3108 -0.14 0.8
--.CRE.Z. 2000-02-21T10:27:13.81 10.0 undecidable manual PG 35 0.4662 0.09 2.1
--.GRFL.Z. 2000-02-21T10:27:12.64 10.0 undecidable manual PG 258 0.4329 -0.39 1.1
--.CSNT.Z. 2000-02-21T10:27:10.50 10.0 undecidable manual PG 319 0.3108 -0.13 2
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