Earthquake with magnitude of Md 2.3 on date 19-03-1993 and time 12:07:39 (Italy) in region 3 km SE Gaiole in Chianti (SI)

A magnitude Md 2.3 earthquake occured in region: 3 km SE Gaiole in Chianti (SI), on

  • 19-03-1993 11:07:39 (UTC)
  • 19-03-1993 12:07:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4450, 11.4600 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
Gaiole in Chianti SI 3 2758 2758
Radda in Chianti SI 8 1613 4371
Cavriglia AR 9 9614 13985
Castelnuovo Berardenga SI 12 9097 23082
Montevarchi AR 12 24378 47460
Bucine AR 13 10164 57624
Castellina in Chianti SI 14 2859 60483
San Giovanni Valdarno AR 15 17018 77501
Terranuova Bracciolini AR 16 12346 89847
Siena SI 17 53903 143750
Pergine Valdarno AR 19 3162 146912
Greve in Chianti FI 19 13862 160774

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NE of Siena (53903 inhabitants)
34 Km W of Arezzo (99543 inhabitants)
40 Km SE of Firenze (382808 inhabitants)
42 Km SE of Scandicci (50609 inhabitants)
57 Km SE of Prato (191150 inhabitants)
70 Km SE of Pistoia (90315 inhabitants)
81 Km NE of Grosseto (82087 inhabitants)
84 Km W of Perugia (166134 inhabitants)
89 Km SE of Lucca (89046 inhabitants)
90 Km E of Pisa (89158 inhabitants)
94 Km E of Livorno (159219 inhabitants)
98 Km SW of Forlì (117913 inhabitants)
99 Km SW of Cesena (96758 inhabitants)
100 Km SW of Faenza (58541 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 1993-03-19
11:07:39
43.445 11.46 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 181889
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-03-19 11:07:39 ± 0.808
Latitude 43.4450 ± 0.0261
Longitude 11.4600 ± 0.0609
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 181889

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) 5706.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 270
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00356
Epicentral distance of station farthest from the epicenter (degree) 0.00850
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 181889
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:50:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ASS.Z. 1993-03-19T11:08:10.55 10.0 undecidable manual SG 113 0.9435 -1.63 0
--.ASS.Z. 1993-03-19T11:07:58.40 10.0 undecidable manual PG 113 0.9435 -0.1 1.2
--.SFI.Z. 1993-03-19T11:07:58.87 10.0 undecidable manual SG 31 0.5328 -0.13 0.6
--.PGD.Z. 1993-03-19T11:07:56.63 10.0 undecidable manual SG 24 0.4662 -0.18 0.6
--.CRE.Z. 1993-03-19T11:07:54.35 10.0 undecidable manual SG 64 0.3996 -0.11 0.6
--.SFI.Z. 1993-03-19T11:07:50.48 10.0 undecidable manual PG 31 0.5328 -0.41 1.2
--.CRE.Z. 1993-03-19T11:07:49.41 10.0 positive manual PG 64 0.3996 1.14 1
--.PGD.Z. 1993-03-19T11:07:49.44 10.0 positive manual PG 24 0.4662 -0.18 2.9
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