Earthquake with magnitude of Md 3.0 on date 27-11-1989 and time 22:45:35 (UTC) in region 2 km E Radicondoli (SI)

A magnitude Md 3.0 earthquake occured in region: 2 km E Radicondoli (SI), on

  • 27-11-1989 22:45:35 (UTC)
  • 27-11-1989 23:45:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.27, 11.07 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
Radicondoli SI 2 914 914
Casole d'Elsa SI 8 3897 4811
Chiusdino SI 13 1903 6714
Sovicille SI 13 10116 16830
Castelnuovo di Val di Cecina PI 15 2231 19061
Montieri GR 16 1204 20265
Pomarance PI 16 5897 26162
Monticiano SI 17 1571 27733
Colle di Val d'Elsa SI 18 21620 49353
Monteriggioni SI 19 9810 59163

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km W of Siena (53903 inhabitants)
55 Km S of Scandicci (50609 inhabitants)
57 Km N of Grosseto (82087 inhabitants)
58 Km S of Firenze (382808 inhabitants)
68 Km S of Prato (191150 inhabitants)
69 Km E of Livorno (159219 inhabitants)
70 Km W of Arezzo (99543 inhabitants)
73 Km SE of Pisa (89158 inhabitants)
75 Km S of Pistoia (90315 inhabitants)
79 Km SE of Lucca (89046 inhabitants)
94 Km SE of Viareggio (62467 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
Rev 1000 Md 3.0
ML-VAX 2.3
1989-11-27
22:45:35
43.27 11.07 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 105119
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-11-27 22:45:35 ± 0.484
Latitude 43.27 ± 0.01
Longitude 11.07 ± 0.01
Depth (km) 9 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 105119

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) 1876.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 173
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00469
Epicentral distance of station farthest from the epicenter (degree) 0.03181
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

Md:3

Field Value
Value 3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 105119
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:37:53

ML:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 7
Type of magnitude ML
Reference to an origin 105119
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.LRG.Z. 1989-11-27T22:46:30.00 10.0 undecidable manual PN 274 0.0308 0.8 0.2
--.FVI.Z. 1989-11-27T22:46:30.17 10.0 undecidable manual PN 19 0.0318 -0.59 0.4
--.LMR.Z. 1989-11-27T22:46:26.80 10.0 undecidable manual PN 272 0.0298 -0.89 0.2
--.CTI.Z. 1989-11-27T22:46:20.50 10.0 undecidable manual PN 8 0.0253 -0.25 1
--.SBF.Z. 1989-11-27T22:46:19.80 10.0 undecidable manual PN 284 0.0242 0.6 0.5
--.BOB.Z. 1989-11-27T22:46:08.84 10.0 undecidable manual PN 322 0.017 0.62 0.6
--.MME.Z. 1989-11-27T22:46:08.72 10.0 undecidable manual SG 344 0.0086 -0.26 0.6
--.SFI.Z. 1989-11-27T22:46:05.65 10.0 undecidable manual SG 41 0.0076 0.24 0.6
--.BDI.Z. 1989-11-27T22:46:05.90 10.0 undecidable manual SG 337 0.0077 0.09 0.7
--.PGD.Z. 1989-11-27T22:46:02.77 10.0 undecidable manual SG 37 0.0069 -0.05 0.7
--.CRE.Z. 1989-11-27T22:46:01.20 10.0 undecidable manual SG 61 0.0066 -0.56 0.3
--.ARV.Z. 1989-11-27T22:46:00.83 10.0 undecidable manual PN 79 0.0124 -0.35 1.3
--.ASS.Z. 1989-11-27T22:45:58.34 10.0 undecidable manual PN 99 0.0105 0.03 1.7
--.FIR.Z. 1989-11-27T22:45:56.00 10.0 undecidable manual SG 15 0.0047 1.09 0
--.PII.Z. 1989-11-27T22:45:56.76 10.0 undecidable manual SG 319 0.0053 -0.59 0.3
--.MME.Z. 1989-11-27T22:45:55.14 10.0 undecidable manual PG 344 0.0086 0.13 1.6
--.SFI.Z. 1989-11-27T22:45:52.68 10.0 undecidable manual PG 41 0.0076 -0.27 1.4
--.BDI.Z. 1989-11-27T22:45:52.94 10.0 negative manual PG 337 0.0077 -0.24 2.9
--.PGD.Z. 1989-11-27T22:45:51.98 10.0 undecidable manual PG 37 0.0069 0.52 0.9
--.CRE.Z. 1989-11-27T22:45:50.90 10.0 negative manual PG 61 0.0066 0.16 3.2
--.FIR.Z. 1989-11-27T22:45:47.00 10.0 undecidable manual PG 15 0.0047 0.11 1.6
--.PII.Z. 1989-11-27T22:45:47.98 10.0 undecidable manual PG 319 0.0053 -0.32 1.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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