Earthquake with magnitude of Md 2.2 on date 02-06-1992 and time 21:02:10 (UTC) in region 6 km E Volterra (PI)

A magnitude Md 2.2 earthquake occured in region: 6 km E Volterra (PI), on

  • 02-06-1992 21:02:10 (UTC)
  • 02-06-1992 23:02:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4280, 10.9280 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
Volterra PI 6 10519 10519
San Gimignano SI 10 7820 18339
Gambassi Terme FI 13 4870 23209
Casole d'Elsa SI 13 3897 27106
Montaione FI 14 3700 30806
Pomarance PI 15 5897 36703
Montecatini Val di Cecina PI 15 1749 38452
Colle di Val d'Elsa SI 15 21620 60072
Certaldo FI 16 16121 76193
Lajatico PI 17 1336 77529
Poggibonsi SI 18 29196 106725

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of Siena (53903 inhabitants)
42 Km SW of Scandicci (50609 inhabitants)
46 Km SW of Firenze (382808 inhabitants)
52 Km E of Livorno (159219 inhabitants)
52 Km S of Prato (191150 inhabitants)
53 Km SE of Pisa (89158 inhabitants)
56 Km S of Pistoia (90315 inhabitants)
58 Km SE of Lucca (89046 inhabitants)
73 Km SE of Viareggio (62467 inhabitants)
76 Km N of Grosseto (82087 inhabitants)
77 Km W of Arezzo (99543 inhabitants)
93 Km SE of Massa (69479 inhabitants)
98 Km SE of Carrara (63133 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
ML-VAX 1.5
1992-06-02
21:02:10
43.428 10.928 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 166819
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-06-02 21:02:10 ± 0.656
Latitude 43.4280 ± 0.0411
Longitude 10.9280 ± 0.0301
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 166819

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) 5182.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 239
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00372
Epicentral distance of station farthest from the epicenter (degree) 0.00729
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 166819
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:36:01

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 166819
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
--.MME.Z. 1992-06-02T21:02:37.70 10.0 undecidable manual SG 347 0.777 -0.23 0.6
--.PGD.Z. 1992-06-02T21:02:36.18 10.0 undecidable manual SG 51 0.7215 0.66 0.4
--.CRE.Z. 1992-06-02T21:02:35.20 10.0 undecidable manual SG 74 0.7659 -1.72 0
--.BDI.Z. 1992-06-02T21:02:33.40 10.0 undecidable manual SG 339 0.6771 -0.88 0.2
--.MME.Z. 1992-06-02T21:02:26.73 10.0 undecidable manual PG 347 0.777 0.85 0.6
--.SFI.Z. 1992-06-02T21:02:26.71 10.0 undecidable manual PG 53 0.8103 0.2 1.5
--.PGD.Z. 1992-06-02T21:02:25.34 10.0 undecidable manual PG 51 0.7215 0.5 1.2
--.CRE.Z. 1992-06-02T21:02:25.36 10.0 positive manual PG 74 0.7659 -0.2 3.1
--.BDI.Z. 1992-06-02T21:02:24.20 10.0 undecidable manual PG 339 0.6771 0.27 1.6
--.PII.Z. 1992-06-02T21:02:24.53 10.0 undecidable manual SG 314 0.4107 -0.94 0.2
--.PII.Z. 1992-06-02T21:02:18.79 10.0 undecidable manual PG 314 0.4107 -0.26 1.6
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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