Earthquake with magnitude of Md 2.1 on date 28-05-1992 and time 11:40:49 (Italy) in region 1 km SW Castel del Rio (BO)

A magnitude Md 2.1 earthquake occured in region: 1 km SW Castel del Rio (BO), on

  • 28-05-1992 09:40:49 (UTC)
  • 28-05-1992 11:40:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2, 11.5 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
Castel del Rio BO 1 1246 1246
Fontanelice BO 8 1943 3189
Casola Valsenio RA 10 2617 5806
Palazzuolo sul Senio FI 11 1154 6960
Borgo Tossignano BO 11 3288 10248
Firenzuola FI 13 4726 14974
Casalfiumanese BO 14 3438 18412
Monghidoro BO 14 3749 22161
Monterenzio BO 16 6035 28196
Loiano BO 16 4294 32490
Marradi FI 17 3139 35629
Monzuno BO 20 6328 41957
Riolo Terme RA 20 5720 47677

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km SW of Imola (69797 inhabitants)
32 Km W of Faenza (58541 inhabitants)
35 Km SE of Bologna (386663 inhabitants)
44 Km W of Forlì (117913 inhabitants)
48 Km NE of Prato (191150 inhabitants)
52 Km NE of Firenze (382808 inhabitants)
55 Km NE of Pistoia (90315 inhabitants)
55 Km NE of Scandicci (50609 inhabitants)
60 Km W of Cesena (96758 inhabitants)
61 Km W of Ravenna (159116 inhabitants)
67 Km SE of Modena (184973 inhabitants)
71 Km S of Ferrara (133155 inhabitants)
81 Km SE of Carpi (70699 inhabitants)
87 Km W of Rimini (147750 inhabitants)
88 Km NW of Arezzo (99543 inhabitants)
88 Km SE of Reggio nell'Emilia (171345 inhabitants)
89 Km E of Lucca (89046 inhabitants)
99 Km N of Siena (53903 inhabitants)
99 Km S of Rovigo (51867 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
09:40:49
44.2 11.5 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 165859
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-05-28 09:40:49 ± 0.842
Latitude 44.20 ± 0.06
Longitude 11.50 ± 0.05
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 165859

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) 7690.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 241
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00324
Epicentral distance of station farthest from the epicenter (degree) 0.00599
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 165859
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:35:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.BDI.Z. 1992-05-28T09:41:12.27 10.0 undecidable manual SG 258 0.0059 -1.16 0.1
--.PGD.Z. 1992-05-28T09:41:04.16 10.0 undecidable manual SG 153 0.0032 0.64 0.5
--.SFI.Z. 1992-05-28T09:41:04.82 10.0 undecidable manual SG 139 0.0035 0.32 0.7
--.BDI.Z. 1992-05-28T09:41:04.30 10.0 undecidable manual PG 258 0.0059 0.77 0.8
--.CRE.Z. 1992-05-28T09:41:03.50 10.0 undecidable manual PG 150 0.006 0.1 1.8
--.SFI.Z. 1992-05-28T09:40:57.72 10.0 undecidable manual PG 139 0.0035 -0.39 1.8
--.PGD.Z. 1992-05-28T09:40:56.91 10.0 undecidable manual PG 153 0.0032 -0.63 1.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
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