Earthquake with magnitude of Md 2.2 on date 28-05-1992 and time 14:25:16 (Italy) in region 3 km SE Firenzuola (FI)

A magnitude Md 2.2 earthquake occured in region: 3 km SE Firenzuola (FI), on

  • 28-05-1992 12:25:16 (UTC)
  • 28-05-1992 14:25:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.1, 11.41 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 4 4726 4726
Palazzuolo sul Senio FI 11 1154 5880
Castel del Rio BO 15 1246 7126
Monghidoro BO 16 3749 10875
Borgo San Lorenzo FI 16 18211 29086
Marradi FI 16 3139 32225
Scarperia e San Piero FI 17 12217 44442
Barberino di Mugello FI 18 10836 55278
Vicchio FI 19 8044 63322
San Benedetto Val di Sambro BO 19 4315 67637

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NE of Prato (191150 inhabitants)
37 Km SW of Imola (69797 inhabitants)
39 Km NE of Firenze (382808 inhabitants)
42 Km NE of Scandicci (50609 inhabitants)
43 Km W of Faenza (58541 inhabitants)
44 Km E of Pistoia (90315 inhabitants)
44 Km S of Bologna (386663 inhabitants)
52 Km W of Forlì (117913 inhabitants)
66 Km W of Cesena (96758 inhabitants)
72 Km W of Ravenna (159116 inhabitants)
72 Km SE of Modena (184973 inhabitants)
78 Km E of Lucca (89046 inhabitants)
80 Km NW of Arezzo (99543 inhabitants)
84 Km S of Ferrara (133155 inhabitants)
87 Km SE of Carpi (70699 inhabitants)
87 Km N of Siena (53903 inhabitants)
91 Km SE of Reggio nell'Emilia (171345 inhabitants)
92 Km E of Pisa (89158 inhabitants)
92 Km W of Rimini (147750 inhabitants)
97 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 2.2 1992-05-28
12:25:16
44.1 11.41 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 166059
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-05-28 12:25:16 ± 0.556
Latitude 44.10 ± 0.05
Longitude 11.41 ± 0.03
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 166059

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) 5788.8
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) 0.00275
Epicentral distance of station farthest from the epicenter (degree) 0.00664
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 4
Type of magnitude Md
Reference to an origin 166059
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:35:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CRE.Z. 1992-05-28T12:25:39.00 10.0 undecidable manual SG 141 0.0055 0.24 0.7
--.BDI.Z. 1992-05-28T12:25:37.50 10.0 undecidable manual SG 266 0.0053 -0.34 0.6
--.PII.Z. 1992-05-28T12:25:31.00 10.0 undecidable manual PG 239 0.0066 -0.56 1
--.CRE.Z. 1992-05-28T12:25:30.00 10.0 undecidable manual PG 141 0.0055 0.81 0.7
--.BDI.Z. 1992-05-28T12:25:29.00 10.0 undecidable manual PG 266 0.0053 0.34 1.6
--.SFI.Z. 1992-05-28T12:25:29.00 10.0 undecidable manual SG 122 0.0032 -1.39 0
--.PGD.Z. 1992-05-28T12:25:28.50 10.0 undecidable manual SG 135 0.0028 0.14 0.8
--.SFI.Z. 1992-05-28T12:25:24.00 10.0 undecidable manual PG 122 0.0032 -0.36 1.7
--.PGD.Z. 1992-05-28T12:25:23.50 10.0 undecidable manual PG 135 0.0028 0.31 1.8
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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