Earthquake with magnitude of Md 2.3 on date 21-04-1985 and time 15:28:40 (UTC) in region 2 km E Castelnuovo Rangone (MO)

A magnitude Md 2.3 earthquake occured in region: 2 km E Castelnuovo Rangone (MO), on

  • 21-04-1985 15:28:40 (UTC)
  • 21-04-1985 17:28:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.55, 10.97 at 10 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
Castelnuovo Rangone MO 3 14896 14896
Spilamberto MO 5 12621 27517
San Cesario sul Panaro MO 5 6407 33924
Castelvetro di Modena MO 5 11185 45109
Vignola MO 8 25353 70462
Castelfranco Emilia MO 8 32677 103139
Maranello MO 9 17359 120498
Savignano sul Panaro MO 9 9177 129675
Valsamoggia BO 10 30561 160236
Marano sul Panaro MO 10 5060 165296
Formigine MO 11 34323 199619
Modena MO 12 184973 384592
Fiorano Modenese MO 13 17160 401752
Guiglia MO 13 3931 405683
Sassuolo MO 15 40853 446536
Nonantola MO 16 15839 462375
Anzola dell'Emilia BO 18 12267 474642
Sant'Agata Bolognese BO 18 7291 481933
Casalgrande RE 19 19310 501243
Rubiera RE 19 14864 516107
Campogalliano MO 19 8845 524952
Castellarano RE 20 15232 540184
San Giovanni in Persiceto BO 20 27982 568166
Bastiglia MO 20 4193 572359

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km SE of Modena (184973 inhabitants)
27 Km S of Carpi (70699 inhabitants)
30 Km W of Bologna (386663 inhabitants)
32 Km SE of Reggio nell'Emilia (171345 inhabitants)
58 Km E of Parma (192836 inhabitants)
60 Km SW of Ferrara (133155 inhabitants)
63 Km W of Imola (69797 inhabitants)
69 Km N of Pistoia (90315 inhabitants)
75 Km N of Prato (191150 inhabitants)
78 Km W of Faenza (58541 inhabitants)
87 Km NE of Lucca (89046 inhabitants)
87 Km SW of Rovigo (51867 inhabitants)
87 Km NE of Carrara (63133 inhabitants)
87 Km NE of Massa (69479 inhabitants)
89 Km N of Scandicci (50609 inhabitants)
90 Km N of Firenze (382808 inhabitants)
92 Km W of Forlì (117913 inhabitants)
95 Km NE of Viareggio (62467 inhabitants)
99 Km W of Ravenna (159116 inhabitants)
99 Km SE of Cremona (71901 inhabitants)
99 Km S of Verona (258765 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 2.3 1985-04-21
15:28:40
44.55 10.97 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 5169
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-21 15:28:40 ± 1.298
Latitude 44.55 ± 0.04
Longitude 10.97 ± 0.11
Depth (km) 10 ± 11 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 5169

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) 9859.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00494
Epicentral distance of station farthest from the epicenter (degree) 0.01036
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 5169
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:09:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CH1.Z. 1985-04-21T15:29:18.50 10.0 undecidable manual SN 142 0.0104 0.42 0.7
--.SAL.Z. 1985-04-21T15:29:17.00 10.0 undecidable manual SN 343 0.0099 0.2 0.8
--.PS9.Z. 1985-04-21T15:29:08.50 10.0 undecidable manual SG 201 0.0079 -1.97 0
--.CH1.Z. 1985-04-21T15:29:02.00 10.0 undecidable manual PN 142 0.0104 -0.02 1.9
--.SAL.Z. 1985-04-21T15:29:01.00 10.0 undecidable manual PN 343 0.0099 -0.29 1.8
--.BD1.Z. 1985-04-21T15:29:01.00 10.0 undecidable manual SG 208 0.0049 1.17 0.3
--.PS9.Z. 1985-04-21T15:28:57.00 10.0 undecidable manual PG 201 0.0079 -0.63 1.6
--.BD1.Z. 1985-04-21T15:28:52.50 10.0 undecidable manual PG 208 0.0049 1.01 1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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