Earthquake with magnitude of Md 2.1 on date 29-05-1992 and time 09:43:37 (Italy) in region 7 km E Firenzuola (FI)

A magnitude Md 2.1 earthquake occured in region: 7 km E Firenzuola (FI), on

  • 29-05-1992 07:43:37 (UTC)
  • 29-05-1992 09:43:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.14, 11.46 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 7 4726 4726
Palazzuolo sul Senio FI 8 1154 5880
Castel del Rio BO 9 1246 7126
Marradi FI 14 3139 10265
Monghidoro BO 14 3749 14014
Fontanelice BO 15 1943 15957
Casola Valsenio RA 16 2617 18574
Borgo Tossignano BO 18 3288 21862
Loiano BO 18 4294 26156

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km SW of Imola (69797 inhabitants)
37 Km W of Faenza (58541 inhabitants)
40 Km S of Bologna (386663 inhabitants)
41 Km NE of Prato (191150 inhabitants)
45 Km NE of Firenze (382808 inhabitants)
47 Km W of Forlì (117913 inhabitants)
48 Km NE of Scandicci (50609 inhabitants)
50 Km E of Pistoia (90315 inhabitants)
62 Km W of Cesena (96758 inhabitants)
66 Km W of Ravenna (159116 inhabitants)
70 Km SE of Modena (184973 inhabitants)
78 Km S of Ferrara (133155 inhabitants)
82 Km NW of Arezzo (99543 inhabitants)
84 Km E of Lucca (89046 inhabitants)
85 Km SE of Carpi (70699 inhabitants)
89 Km W of Rimini (147750 inhabitants)
90 Km SE of Reggio nell'Emilia (171345 inhabitants)
92 Km N of Siena (53903 inhabitants)
97 Km E of Pisa (89158 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 2.1 1992-05-29
07:43:37
44.14 11.46 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 166449
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-05-29 07:43:37 ± 0.527
Latitude 44.14 ± 0.05
Longitude 11.46 ± 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 166449

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) 5817
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 215
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00291
Epicentral distance of station farthest from the epicenter (degree) 0.00567
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 166449
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:35:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.BDI.Z. 1992-05-29T07:43:59.81 10.0 undecidable manual SG 262 0.0056 -0.7 0.3
--.MME.Z. 1992-05-29T07:43:57.19 10.0 undecidable manual SG 275 0.0049 -0.83 0.2
--.BDI.Z. 1992-05-29T07:43:51.23 10.0 undecidable manual PG 262 0.0056 0.44 1.3
--.SFI.Z. 1992-05-29T07:43:51.10 10.0 undecidable manual SG 131 0.0032 -0.69 0.3
--.CRE.Z. 1992-05-29T07:43:51.40 10.0 undecidable manual PG 146 0.0057 0.54 1
--.PGD.Z. 1992-05-29T07:43:50.47 10.0 undecidable manual SG 145 0.0029 0.27 0.8
--.MME.Z. 1992-05-29T07:43:49.55 10.0 undecidable manual PG 275 0.0049 0.2 1.9
--.SFI.Z. 1992-05-29T07:43:45.12 10.0 undecidable manual PG 131 0.0032 -0.58 1.1
--.PGD.Z. 1992-05-29T07:43:45.00 10.0 undecidable manual PG 145 0.0029 0.16 2.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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