Earthquake with magnitude of Md 2.1 on date 28-05-1992 and time 11:39:30 (Italy) in region 3 km NW Castel del Rio (BO)

A magnitude Md 2.1 earthquake occured in region: 3 km NW Castel del Rio (BO), on

  • 28-05-1992 09:39:30 (UTC)
  • 28-05-1992 11:39:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.23, 11.48 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 7 1943 3189
Borgo Tossignano BO 10 3288 6477
Monterenzio BO 12 6035 12512
Casola Valsenio RA 12 2617 15129
Monghidoro BO 13 3749 18878
Loiano BO 13 4294 23172
Casalfiumanese BO 13 3438 26610
Palazzuolo sul Senio FI 15 1154 27764
Firenzuola FI 15 4726 32490
Monzuno BO 17 6328 38818
Dozza BO 19 6652 45470
San Benedetto Val di Sambro BO 19 4315 49785
Pianoro BO 20 17460 67245

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km SW of Imola (69797 inhabitants)
31 Km SE of Bologna (386663 inhabitants)
33 Km W of Faenza (58541 inhabitants)
45 Km W of Forlì (117913 inhabitants)
49 Km NE of Prato (191150 inhabitants)
54 Km NE of Firenze (382808 inhabitants)
56 Km NE of Pistoia (90315 inhabitants)
58 Km NE of Scandicci (50609 inhabitants)
61 Km W of Ravenna (159116 inhabitants)
62 Km W of Cesena (96758 inhabitants)
63 Km SE of Modena (184973 inhabitants)
68 Km S of Ferrara (133155 inhabitants)
77 Km SE of Carpi (70699 inhabitants)
85 Km SE of Reggio nell'Emilia (171345 inhabitants)
89 Km W of Rimini (147750 inhabitants)
89 Km E of Lucca (89046 inhabitants)
91 Km NW of Arezzo (99543 inhabitants)
97 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
ML-VAX 1.6
1992-05-28
09:39:30
44.23 11.48 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 165839
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1992-05-28 09:39:30 ± 0.555
Latitude 44.23 ± 0.04
Longitude 11.48 ± 0.03
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 165839

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) 4648.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 234
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00356
Epicentral distance of station farthest from the epicenter (degree) 0.00623
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 165839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:35:09

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 165839
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
--.CRE.Z. 1992-05-28T09:39:56.50 10.0 undecidable manual SG 150 0.0062 0.48 0.4
--.BDI.Z. 1992-05-28T09:39:54.72 10.0 undecidable manual SG 255 0.0058 0.23 0.7
--.SFI.Z. 1992-05-28T09:39:47.60 10.0 undecidable manual SG 141 0.0038 0.04 0.8
--.CRE.Z. 1992-05-28T09:39:46.00 10.0 undecidable manual PG 150 0.0062 0.71 0.5
--.PGD.Z. 1992-05-28T09:39:45.31 10.0 undecidable manual SG 153 0.0036 -0.76 0.2
--.BDI.Z. 1992-05-28T09:39:44.55 10.0 undecidable manual PG 255 0.0058 0.14 1.8
--.MME.Z. 1992-05-28T09:39:42.23 10.0 undecidable manual PG 266 0.005 -0.4 1.4
--.PGD.Z. 1992-05-28T09:39:39.61 10.0 undecidable manual PG 153 0.0036 0.06 2.1
--.SFI.Z. 1992-05-28T09:39:39.57 10.0 undecidable manual PG 141 0.0038 -0.53 1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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