Earthquake with magnitude of Md 2.2 on date 14-11-1985 and time 08:53:25 (Italy) in region 6 km S Radicondoli (SI)

A magnitude Md 2.2 earthquake occured in region: 6 km S Radicondoli (SI), on

  • 14-11-1985 07:53:25 (UTC)
  • 14-11-1985 08:53:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.2100, 11.0330 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
Radicondoli SI 6 914 914
Chiusdino SI 8 1903 2817
Montieri GR 9 1204 4021
Castelnuovo di Val di Cecina PI 10 2231 6252
Monticiano SI 14 1571 7823
Casole d'Elsa SI 15 3897 11720
Monterotondo Marittimo GR 16 1371 13091
Pomarance PI 16 5897 18988
Sovicille SI 18 10116 29104

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km W of Siena (53903 inhabitants)
50 Km N of Grosseto (82087 inhabitants)
62 Km S of Scandicci (50609 inhabitants)
65 Km S of Firenze (382808 inhabitants)
70 Km SE of Livorno (159219 inhabitants)
75 Km W of Arezzo (99543 inhabitants)
75 Km S of Prato (191150 inhabitants)
76 Km SE of Pisa (89158 inhabitants)
81 Km S of Pistoia (90315 inhabitants)
83 Km SE of Lucca (89046 inhabitants)
97 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
Bulletin
Rev1000
Md 2.2 1985-11-14
07:53:25
43.21 11.033 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 15619
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-11-14 07:53:25 ± 0.275
Latitude 43.2100 ± 0.0138
Longitude 11.0330 ± 0.0289
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 15619

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) 2797.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00526
Epicentral distance of station farthest from the epicenter (degree) 0.00818
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 15619
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:18:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BDI.Z. 1985-11-14T07:53:58.00 10.0 undecidable manual SG 339 0.9102 1.03 0.3
--.CRE.Z. 1985-11-14T07:53:53.00 10.0 undecidable manual SG 58 0.777 0.08 0.8
--.MAO.Z. 1985-11-14T07:53:53.00 10.0 undecidable manual SG 173 0.7881 -0.4 0.7
--.FIR.N. 1985-11-14T07:53:47.00 10.0 undecidable manual SG 16 0.5883 0.37 0.7
--.PS9.Z. 1985-11-14T07:53:47.00 10.0 undecidable manual SG 324 0.6327 -1.04 0.4
--.BDI.Z. 1985-11-14T07:53:44.00 10.0 undecidable manual PG 339 0.9102 0.17 1.7
--.CRE.Z. 1985-11-14T07:53:42.00 10.0 undecidable manual PG 58 0.777 0.5 1.6
--.MAO.Z. 1985-11-14T07:53:41.80 10.0 undecidable manual PG 173 0.7881 0.03 1.9
--.PS9.Z. 1985-11-14T07:53:39.00 10.0 undecidable manual PG 324 0.6327 0.32 1.8
--.FIR.Z. 1985-11-14T07:53:36.00 10.0 undecidable manual PG 16 0.5883 -1.86 0.2
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