Earthquake with magnitude of Md 2.1 on date 28-05-1992 and time 14:29:18 (Italy) in region 1 km SE Vaglia (FI)

A magnitude Md 2.1 earthquake occured in region: 1 km SE Vaglia (FI), on

  • 28-05-1992 12:29:18 (UTC)
  • 28-05-1992 14:29:18 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9, 11.29 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
Vaglia FI 1 5073 5073
Scarperia e San Piero FI 8 12217 17290
Borgo San Lorenzo FI 10 18211 35501
Fiesole FI 10 13969 49470
Sesto Fiorentino FI 11 48958 98428
Calenzano FI 11 17489 115917
Barberino di Mugello FI 12 10836 126753
Vicchio FI 14 8044 134797
Firenze FI 15 382808 517605
Campi Bisenzio FI 15 46166 563771
Vaiano PO 16 9895 573666
Prato PO 16 191150 764816
Bagno a Ripoli FI 17 25611 790427
Rufina FI 18 7346 797773
Scandicci FI 18 50609 848382
Pontassieve FI 18 20603 868985
Dicomano FI 19 5515 874500

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km N of Firenze (382808 inhabitants)
16 Km E of Prato (191150 inhabitants)
18 Km NE of Scandicci (50609 inhabitants)
30 Km E of Pistoia (90315 inhabitants)
61 Km SW of Imola (69797 inhabitants)
64 Km E of Lucca (89046 inhabitants)
64 Km SW of Faenza (58541 inhabitants)
65 Km N of Siena (53903 inhabitants)
66 Km S of Bologna (386663 inhabitants)
68 Km NW of Arezzo (99543 inhabitants)
70 Km SW of Forlì (117913 inhabitants)
74 Km E of Pisa (89158 inhabitants)
81 Km W of Cesena (96758 inhabitants)
84 Km E of Viareggio (62467 inhabitants)
88 Km E of Livorno (159219 inhabitants)
88 Km SE of Modena (184973 inhabitants)
93 Km SW of Ravenna (159116 inhabitants)
93 Km E of Massa (69479 inhabitants)
98 Km E 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
Rev 1000 Md 2.1 1992-05-28
12:29:18
43.9 11.29 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 166089
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-05-28 12:29:18 ± 0.205
Latitude 43.90 ± 0.04
Longitude 11.29 ± 0.01
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 166089

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) 4083.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 160
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00518
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 5
Type of magnitude Md
Reference to an origin 166089
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:35:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CRE.Z. 1992-05-28T12:29:39.00 10.0 undecidable manual SG 120 0.0049 -0.51 0.4
--.SFI.Z. 1992-05-28T12:29:33.50 10.0 undecidable manual SG 89 0.0036 -0.94 0.2
--.CRE.Z. 1992-05-28T12:29:31.50 10.0 undecidable manual PG 120 0.0049 0.68 0.9
--.PII.Z. 1992-05-28T12:29:31.00 10.0 undecidable manual PG 252 0.0052 -0.39 1.2
--.PGD.Z. 1992-05-28T12:29:31.00 10.0 undecidable manual SG 94 0.0028 0 0.8
--.BDI.Z. 1992-05-28T12:29:30.50 10.0 undecidable manual PG 288 0.0047 0.14 1.8
--.SFI.Z. 1992-05-28T12:29:27.50 10.0 undecidable manual PG 89 0.0036 -0.39 1.6
--.PGD.Z. 1992-05-28T12:29:26.50 10.0 undecidable manual PG 94 0.0028 0.59 1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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