Earthquake with magnitude of Md 2.1 on date 28-05-1992 and time 19:56:16 (Italy) in region 2 km E Castel del Rio (BO)

A magnitude Md 2.1 earthquake occured in region: 2 km E Castel del Rio (BO), on

  • 28-05-1992 17:56:16 (UTC)
  • 28-05-1992 19:56:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.21, 11.54 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 3 1246 1246
Fontanelice BO 6 1943 3189
Casola Valsenio RA 7 2617 5806
Borgo Tossignano BO 9 3288 9094
Palazzuolo sul Senio FI 11 1154 10248
Casalfiumanese BO 12 3438 13686
Marradi FI 16 3139 16825
Firenzuola FI 16 4726 21551
Monterenzio BO 17 6035 27586
Riolo Terme RA 17 5720 33306
Monghidoro BO 17 3749 37055
Dozza BO 18 6652 43707
Loiano BO 18 4294 48001
Brisighella RA 19 7639 55640

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km SW of Imola (69797 inhabitants)
29 Km W of Faenza (58541 inhabitants)
35 Km SE of Bologna (386663 inhabitants)
40 Km W of Forlì (117913 inhabitants)
51 Km NE of Prato (191150 inhabitants)
54 Km NE of Firenze (382808 inhabitants)
57 Km W of Cesena (96758 inhabitants)
58 Km W of Ravenna (159116 inhabitants)
58 Km NE of Scandicci (50609 inhabitants)
58 Km NE of Pistoia (90315 inhabitants)
69 Km SE of Modena (184973 inhabitants)
70 Km S of Ferrara (133155 inhabitants)
82 Km SE of Carpi (70699 inhabitants)
84 Km W of Rimini (147750 inhabitants)
87 Km NW of Arezzo (99543 inhabitants)
90 Km SE of Reggio nell'Emilia (171345 inhabitants)
92 Km E of Lucca (89046 inhabitants)
98 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
17:56:16
44.21 11.54 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 166359
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-05-28 17:56:16 ± 0.987
Latitude 44.21 ± 0.06
Longitude 11.54 ± 0.06
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 166359

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) 8100.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 235
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00324
Epicentral distance of station farthest from the epicenter (degree) 0.00785
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 166359
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:35:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CRE.Z. 1992-05-28T17:56:40.89 10.0 undecidable manual SG 153 0.0059 0.64 0.6
--.MME.Z. 1992-05-28T17:56:36.87 10.0 undecidable manual SG 268 0.0053 -1.34 0.2
--.PII.Z. 1992-05-28T17:56:34.41 10.0 undecidable manual PG 236 0.0079 0.38 1.5
--.CRE.Z. 1992-05-28T17:56:31.24 10.0 undecidable manual PG 153 0.0059 1.19 0.6
--.BDI.Z. 1992-05-28T17:56:30.15 10.0 undecidable manual PG 258 0.0062 -0.41 1.7
--.PGD.Z. 1992-05-28T17:56:30.64 10.0 undecidable manual SG 158 0.0032 0.51 0.7
--.MME.Z. 1992-05-28T17:56:29.50 10.0 undecidable manual PG 268 0.0053 0.62 1.5
--.SFI.Z. 1992-05-28T17:56:29.96 10.0 undecidable manual SG 143 0.0034 -0.89 0.5
--.PGD.Z. 1992-05-28T17:56:23.89 10.0 undecidable manual PG 158 0.0032 -0.32 2
--.SFI.Z. 1992-05-28T17:56:23.57 10.0 undecidable manual PG 143 0.0034 -1.05 0.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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