Earthquake with magnitude of Md 2.2 on date 28-05-1992 and time 19:44:09 (Italy) in region 6 km E Firenzuola (FI)

A magnitude Md 2.2 earthquake occured in region: 6 km E Firenzuola (FI), on

  • 28-05-1992 17:44:09 (UTC)
  • 28-05-1992 19:44:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.13, 11.45 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 8 1154 5880
Castel del Rio BO 11 1246 7126
Marradi FI 14 3139 10265
Monghidoro BO 15 3749 14014
Fontanelice BO 17 1943 15957
Casola Valsenio RA 18 2617 18574
Loiano BO 19 4294 22868
Borgo San Lorenzo FI 20 18211 41079
San Benedetto Val di Sambro BO 20 4315 45394
Borgo Tossignano BO 20 3288 48682

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km SW of Imola (69797 inhabitants)
39 Km W of Faenza (58541 inhabitants)
39 Km NE of Prato (191150 inhabitants)
42 Km S of Bologna (386663 inhabitants)
43 Km NE of Firenze (382808 inhabitants)
46 Km NE of Scandicci (50609 inhabitants)
48 Km E of Pistoia (90315 inhabitants)
48 Km W of Forlì (117913 inhabitants)
63 Km W of Cesena (96758 inhabitants)
68 Km W of Ravenna (159116 inhabitants)
71 Km SE of Modena (184973 inhabitants)
80 Km S of Ferrara (133155 inhabitants)
81 Km NW of Arezzo (99543 inhabitants)
82 Km E of Lucca (89046 inhabitants)
86 Km SE of Carpi (70699 inhabitants)
89 Km W of Rimini (147750 inhabitants)
90 Km N of Siena (53903 inhabitants)
91 Km SE of Reggio nell'Emilia (171345 inhabitants)
96 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 2.2
ML-VAX 1.6
1992-05-28
17:44:09
44.13 11.45 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 166349
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-05-28 17:44:09 ± 0.403
Latitude 44.13 ± 0.03
Longitude 11.45 ± 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 166349

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) 3483.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 210
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.00696
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 166349
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:35:35

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 6
Type of magnitude ML
Reference to an origin 166349
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. 1992-05-28T17:44:36.52 10.0 undecidable manual SG 239 0.007 -0.51 0.4
--.CRE.Z. 1992-05-28T17:44:32.00 10.0 undecidable manual SG 144 0.0056 0.07 0.8
--.BDI.Z. 1992-05-28T17:44:31.17 10.0 undecidable manual SG 264 0.0055 -0.56 0.4
--.MME.Z. 1992-05-28T17:44:29.28 10.0 undecidable manual SG 277 0.0049 -0.08 0.8
--.PII.Z. 1992-05-28T17:44:25.45 10.0 negative manual PG 239 0.007 0.23 3.1
--.SFI.Z. 1992-05-28T17:44:23.00 10.0 undecidable manual SG 128 0.0032 -0.14 0.8
--.CRE.Z. 1992-05-28T17:44:22.20 10.0 undecidable manual PG 144 0.0056 -0.25 1.7
--.BDI.Z. 1992-05-28T17:44:21.63 10.0 undecidable manual PG 264 0.0055 -0.53 1.1
--.MME.Z. 1992-05-28T17:44:21.63 10.0 undecidable manual PG 277 0.0049 0.84 0.7
--.PGD.Z. 1992-05-28T17:44:21.77 10.0 undecidable manual SG 142 0.0028 0.3 0.7
--.PGD.Z. 1992-05-28T17:44:16.96 10.0 undecidable manual PG 142 0.0028 0.73 0.8
--.SFI.Z. 1992-05-28T17:44:16.44 10.0 undecidable manual PG 128 0.0032 -0.76 0.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download