Earthquake with magnitude of Md 2.1 on date 06-05-1992 and time 23:16:24 (Italy) in region 2 km NW Montieri (GR)

A magnitude Md 2.1 earthquake occured in region: 2 km NW Montieri (GR), on

  • 06-05-1992 21:16:24 (UTC)
  • 06-05-1992 23:16:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1460, 11.0090 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 2 1204 1204
Chiusdino SI 7 1903 3107
Castelnuovo di Val di Cecina PI 11 2231 5338
Monterotondo Marittimo GR 12 1371 6709
Radicondoli SI 13 914 7623
Monticiano SI 14 1571 9194
Massa Marittima GR 14 8375 17569
Roccastrada GR 20 9199 26768

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km SW of Siena (53903 inhabitants)
44 Km N of Grosseto (82087 inhabitants)
70 Km S of Scandicci (50609 inhabitants)
72 Km S of Firenze (382808 inhabitants)
72 Km SE of Livorno (159219 inhabitants)
79 Km W of Arezzo (99543 inhabitants)
80 Km SE of Pisa (89158 inhabitants)
82 Km S of Prato (191150 inhabitants)
88 Km SE of Lucca (89046 inhabitants)
88 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 2.1
ML-VAX 1.5
1992-05-06
21:16:24
43.146 11.009 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 163809
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-05-06 21:16:24 ± 0.254
Latitude 43.1460 ± 0.0119
Longitude 11.0090 ± 0.0292
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 163809

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) 2711.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
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) 0.00599
Epicentral distance of station farthest from the epicenter (degree) 0.00874
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 163809
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:33:05

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 5
Type of magnitude ML
Reference to an origin 163809
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(km) Takeoff_angle Residual Weight
--.SFI.Z. 1992-05-06T21:16:58.14 10.0 undecidable manual SG 38 0.9657 0.45 0.6
--.BDI.Z. 1992-05-06T21:16:56.67 10.0 undecidable manual SG 342 0.9657 -0.75 0.4
--.CRE.Z. 1992-05-06T21:16:51.86 10.0 undecidable manual SG 55 0.8214 -1.35 0.1
--.MAO.Z. 1992-05-06T21:16:49.80 10.0 undecidable manual SG 171 0.7326 -0.33 0.8
--.PII.Z. 1992-05-06T21:16:47.64 10.0 undecidable manual SG 328 0.666 -0.5 0.7
--.SFI.Z. 1992-05-06T21:16:43.83 10.0 undecidable manual PG 38 0.9657 0.13 2
--.BDI.Z. 1992-05-06T21:16:42.84 10.0 undecidable manual PG 342 0.9657 -0.7 1.2
--.CRE.Z. 1992-05-06T21:16:41.76 10.0 undecidable manual PG 55 0.8214 0.64 1.4
--.MAO.Z. 1992-05-06T21:16:39.19 10.0 undecidable manual PG 171 0.7326 -0.14 2.1
--.PII.Z. 1992-05-06T21:16:39.25 10.0 undecidable manual PG 328 0.666 1.06 0.6
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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