Earthquake with magnitude of Md 2.4 on date 28-05-1992 and time 11:30:02 (Italy) in region 5 km SE Firenzuola (FI)

A magnitude Md 2.4 earthquake occured in region: 5 km SE Firenzuola (FI), on

  • 28-05-1992 09:30:02 (UTC)
  • 28-05-1992 11:30:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.07, 11.4 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 5 4726 4726
Palazzuolo sul Senio FI 12 1154 5880
Borgo San Lorenzo FI 13 18211 24091
Scarperia e San Piero FI 14 12217 36308
Barberino di Mugello FI 15 10836 47144
Vicchio FI 16 8044 55188
Marradi FI 17 3139 58327
Castel del Rio BO 18 1246 59573
Monghidoro BO 18 3749 63322
Vernio PO 20 6060 69382

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NE of Prato (191150 inhabitants)
36 Km NE of Firenze (382808 inhabitants)
39 Km NE of Scandicci (50609 inhabitants)
40 Km SW of Imola (69797 inhabitants)
42 Km E of Pistoia (90315 inhabitants)
45 Km SW of Faenza (58541 inhabitants)
47 Km S of Bologna (386663 inhabitants)
54 Km W of Forlì (117913 inhabitants)
67 Km W of Cesena (96758 inhabitants)
74 Km SW of Ravenna (159116 inhabitants)
74 Km SE of Modena (184973 inhabitants)
77 Km E of Lucca (89046 inhabitants)
78 Km NW of Arezzo (99543 inhabitants)
84 Km N of Siena (53903 inhabitants)
87 Km S of Ferrara (133155 inhabitants)
89 Km SE of Carpi (70699 inhabitants)
90 Km E of Pisa (89158 inhabitants)
93 Km SE of Reggio nell'Emilia (171345 inhabitants)
93 Km W of Rimini (147750 inhabitants)
95 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 2.4
ML-VAX 1.6
1992-05-28
09:30:02
44.07 11.4 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 165829
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-05-28 09:30:02 ± 0.263
Latitude 44.07 ± 0.02
Longitude 11.40 ± 0.02
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 165829

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) 2955.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 182
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.00267
Epicentral distance of station farthest from the epicenter (degree) 0.00648
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 165829
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:35:08

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 165829
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 Takeoff_angle Residual Weight
--.PII.Z. 1992-05-28T09:30:28.50 10.0 undecidable manual SG 241 0.0065 0.2 0.7
--.GU9.Z. 1992-05-28T09:30:26.58 10.0 undecidable manual SG 295 0.0057 0.78 0.3
--.BDI.Z. 1992-05-28T09:30:23.48 10.0 undecidable manual SG 269 0.0052 -0.15 0.9
--.CRE.Z. 1992-05-28T09:30:23.75 10.0 undecidable manual SG 139 0.0053 -0.56 0.5
--.MME.Z. 1992-05-28T09:30:21.45 10.0 undecidable manual SG 283 0.0046 -0.24 0.9
--.PII.Z. 1992-05-28T09:30:17.00 10.0 undecidable manual PG 241 0.0065 -0.25 1.8
--.GU9.Z. 1992-05-28T09:30:16.19 10.0 undecidable manual PG 295 0.0057 0.38 1.5
--.SFI.Z. 1992-05-28T09:30:15.57 10.0 undecidable manual SG 118 0.0032 -0.61 0.5
--.CRE.Z. 1992-05-28T09:30:15.89 10.0 undecidable manual PG 139 0.0053 0.94 0.8
--.BDI.Z. 1992-05-28T09:30:14.62 10.0 undecidable manual PG 269 0.0052 0.06 2.1
--.PGD.Z. 1992-05-28T09:30:14.70 10.0 undecidable manual SG 131 0.0027 0.14 0.9
--.MME.Z. 1992-05-28T09:30:12.15 10.0 undecidable manual PG 283 0.0046 -1.29 0.5
--.PGD.Z. 1992-05-28T09:30:09.73 10.0 undecidable manual PG 131 0.0027 0.78 1.2
--.SFI.Z. 1992-05-28T09:30:09.56 10.0 undecidable manual PG 118 0.0032 -0.7 1.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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