Earthquake with magnitude of Md 2.6 on date 09-07-1992 and time 15:30:47 (Italy) in region 6 km E Firenzuola (FI)

A magnitude Md 2.6 earthquake occured in region: 6 km E Firenzuola (FI), on

  • 09-07-1992 13:30:47 (UTC)
  • 09-07-1992 15:30:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1, 11.44 at 5 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
Firenzuola FI 6 4726 4726
Palazzuolo sul Senio FI 9 1154 5880
Marradi FI 14 3139 9019
Castel del Rio BO 14 1246 10265
Borgo San Lorenzo FI 16 18211 28476
Monghidoro BO 17 3749 32225
Scarperia e San Piero FI 18 12217 44442
Vicchio FI 18 8044 52486
Barberino di Mugello FI 19 10836 63322

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SW of Imola (69797 inhabitants)
37 Km NE of Prato (191150 inhabitants)
39 Km NE of Firenze (382808 inhabitants)
41 Km SW of Faenza (58541 inhabitants)
43 Km NE of Scandicci (50609 inhabitants)
45 Km S of Bologna (386663 inhabitants)
46 Km E of Pistoia (90315 inhabitants)
50 Km W of Forlì (117913 inhabitants)
64 Km W of Cesena (96758 inhabitants)
70 Km SW of Ravenna (159116 inhabitants)
74 Km SE of Modena (184973 inhabitants)
78 Km NW of Arezzo (99543 inhabitants)
80 Km E of Lucca (89046 inhabitants)
84 Km S of Ferrara (133155 inhabitants)
87 Km N of Siena (53903 inhabitants)
89 Km SE of Carpi (70699 inhabitants)
90 Km W of Rimini (147750 inhabitants)
93 Km SE of Reggio nell'Emilia (171345 inhabitants)
94 Km E of Pisa (89158 inhabitants)
99 Km E 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 2.6 1992-07-09
13:30:47
44.1 11.45 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 169239
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-07-09 13:30:47 ± 0.701
Latitude 44.10 ± 0.06
Longitude 11.45 ± 0.04
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 169239

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) 7878.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 211
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.01109
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:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 169239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:38:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ARV.Z. 1992-07-09T13:31:12.50 10.0 undecidable manual PN 118 0.0111 0.91 0.5
--.CRE.Z. 1992-07-09T13:31:10.13 10.0 undecidable manual SG 142 0.0053 0.23 0.7
--.BDI.Z. 1992-07-09T13:31:09.90 10.0 undecidable manual SG 267 0.0054 -0.34 0.6
--.SFI.Z. 1992-07-09T13:31:01.70 10.0 undecidable manual SG 123 0.0031 0.43 0.6
--.BDI.Z. 1992-07-09T13:31:00.96 10.0 undecidable manual PG 267 0.0054 0.2 1.6
--.PGD.Z. 1992-07-09T13:31:00.30 10.0 undecidable manual SG 137 0.0026 0.95 0.3
--.CRE.Z. 1992-07-09T13:30:59.74 10.0 undecidable manual PG 142 0.0053 -0.82 0.9
--.PGD.Z. 1992-07-09T13:30:54.31 10.0 positive manual PG 137 0.0026 -0.16 3.5
--.SFI.Z. 1992-07-09T13:30:54.34 10.0 undecidable manual PG 123 0.0031 -1.24 0.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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