Earthquake with magnitude of Md 2.2 on date 28-05-1992 and time 11:39:59 (Italy) in region 4 km S Castel del Rio (BO)

A magnitude Md 2.2 earthquake occured in region: 4 km S Castel del Rio (BO), on

  • 28-05-1992 09:39:59 (UTC)
  • 28-05-1992 11:39:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.17, 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 5 1246 1246
Palazzuolo sul Senio FI 8 1154 2400
Fontanelice BO 10 1943 4343
Casola Valsenio RA 11 2617 6960
Firenzuola FI 12 4726 11686
Borgo Tossignano BO 14 3288 14974
Marradi FI 14 3139 18113
Monghidoro BO 16 3749 21862
Casalfiumanese BO 17 3438 25300
Loiano BO 18 4294 29594
Monterenzio BO 19 6035 35629

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SW of Imola (69797 inhabitants)
33 Km W of Faenza (58541 inhabitants)
38 Km SE of Bologna (386663 inhabitants)
43 Km W of Forlì (117913 inhabitants)
46 Km NE of Prato (191150 inhabitants)
49 Km NE of Firenze (382808 inhabitants)
53 Km NE of Scandicci (50609 inhabitants)
54 Km E of Pistoia (90315 inhabitants)
59 Km W of Cesena (96758 inhabitants)
62 Km W of Ravenna (159116 inhabitants)
70 Km SE of Modena (184973 inhabitants)
74 Km S of Ferrara (133155 inhabitants)
84 Km SE of Carpi (70699 inhabitants)
84 Km NW of Arezzo (99543 inhabitants)
86 Km W of Rimini (147750 inhabitants)
88 Km E of Lucca (89046 inhabitants)
91 Km SE of Reggio nell'Emilia (171345 inhabitants)
96 Km N of Siena (53903 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
09:39:59
44.17 11.5 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 165849
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-05-28 09:39:59 ± 0.454
Latitude 44.17 ± 0.03
Longitude 11.50 ± 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 165849

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) 3712.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 221
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.003
Epicentral distance of station farthest from the epicenter (degree) 0.01109
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 165849
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:35:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.PII.Z. 1992-05-28T09:40:28.50 10.0 undecidable manual SG 237 0.0075 -0.46 0.6
--.ARV.Z. 1992-05-28T09:40:23.50 10.0 undecidable manual PN 122 0.0111 0.45 1.1
--.BDI.Z. 1992-05-28T09:40:23.70 10.0 undecidable manual SG 260 0.0059 -0.17 0.8
--.CRE.Z. 1992-05-28T09:40:22.00 10.0 undecidable manual SG 149 0.0057 -0.66 0.5
--.PII.Z. 1992-05-28T09:40:16.50 10.0 undecidable manual PG 237 0.0075 0.12 1.9
--.SFI.Z. 1992-05-28T09:40:13.40 10.0 undecidable manual SG 137 0.0032 -0.03 0.9
--.BDI.Z. 1992-05-28T09:40:13.30 10.0 undecidable manual PG 260 0.0059 0.22 2.1
--.PGD.Z. 1992-05-28T09:40:13.41 10.0 undecidable manual SG 152 0.003 1.09 0.1
--.CRE.Z. 1992-05-28T09:40:12.00 10.0 undecidable manual PG 149 0.0057 -0.75 0.9
--.PGD.Z. 1992-05-28T09:40:07.50 10.0 undecidable manual PG 152 0.003 0.72 1
--.SFI.Z. 1992-05-28T09:40:06.74 10.0 undecidable manual PG 137 0.0032 -0.68 1.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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