Earthquake with magnitude of Md 2.5 on date 30-09-1989 and time 19:40:20 (Italy) in region S Zocca (MO)

A magnitude Md 2.5 earthquake occured in region: S Zocca (MO), on

  • 30-09-1989 18:40:20 (UTC)
  • 30-09-1989 19:40:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3430, 10.9960 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
Zocca MO 0 4719 4719
Castel d'Aiano BO 7 1906 6625
Montese MO 9 3353 9978
Guiglia MO 10 3931 13909
Vergato BO 11 7639 21548
Pavullo nel Frignano MO 13 17383 38931
Marano sul Panaro MO 13 5060 43991
Vignola MO 15 25353 69344
Savignano sul Panaro MO 16 9177 78521
Grizzana Morandi BO 16 3916 82437
Gaggio Montano BO 17 4878 87315
Marzabotto BO 17 6779 94094
Castelvetro di Modena MO 18 11185 105279
Serramazzoni MO 19 8282 113561
Valsamoggia BO 19 30561 144122

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km SW of Bologna (386663 inhabitants)
34 Km S of Modena (184973 inhabitants)
46 Km N of Pistoia (90315 inhabitants)
49 Km SE of Reggio nell'Emilia (171345 inhabitants)
50 Km S of Carpi (70699 inhabitants)
52 Km N of Prato (191150 inhabitants)
57 Km W of Imola (69797 inhabitants)
67 Km N of Scandicci (50609 inhabitants)
67 Km NW of Firenze (382808 inhabitants)
68 Km NE of Lucca (89046 inhabitants)
71 Km W of Faenza (58541 inhabitants)
73 Km SE of Parma (192836 inhabitants)
74 Km SW of Ferrara (133155 inhabitants)
76 Km E of Massa (69479 inhabitants)
77 Km E of Carrara (63133 inhabitants)
80 Km NE of Viareggio (62467 inhabitants)
84 Km W of Forlì (117913 inhabitants)
84 Km NE of Pisa (89158 inhabitants)
96 Km W of Ravenna (159116 inhabitants)
97 Km E of La Spezia (93959 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
Bulletin
Rev1000
Md 2.5
ML-VAX 1.8
1989-09-30
18:40:20
44.343 10.996 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 101249
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-09-30 18:40:20 ± 0.453
Latitude 44.3430 ± 0.0279
Longitude 10.9960 ± 0.0293
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 101249

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) 3878.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
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) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.01587
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 101249
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:34:26

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 101249
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(km) Takeoff_angle Residual Weight
--.BOB.Z. 1989-09-30T18:41:02.00 10.0 undecidable manual SN 291 1.1766 1.79 0.1
--.CTI.Z. 1989-09-30T18:40:50.19 10.0 undecidable manual PN 14 1.7649 -1.16 0.7
--.SFI.Z. 1989-09-30T18:40:48.20 10.0 undecidable manual SG 125 0.7437 0.91 0.6
--.PII.Z. 1989-09-30T18:40:46.22 10.0 undecidable manual SG 208 0.6993 0.35 0.8
--.BOB.Z. 1989-09-30T18:40:43.84 10.0 undecidable manual PN 291 1.1766 0.51 1.5
--.SFI.Z. 1989-09-30T18:40:36.60 10.0 undecidable manual PG 125 0.7437 0.73 1.7
--.BDI.Z. 1989-09-30T18:40:35.76 10.0 undecidable manual SG 225 0.3996 -0.03 0.9
--.PII.Z. 1989-09-30T18:40:33.98 10.0 undecidable manual PG 208 0.6993 -1.08 1.2
--.MME.Z. 1989-09-30T18:40:32.00 10.0 undecidable manual SG 234 0.2553 1.59 0.2
--.BDI.Z. 1989-09-30T18:40:27.98 10.0 undecidable manual PG 225 0.3996 -1.26 1
--.MME.Z. 1989-09-30T18:40:26.25 10.0 undecidable manual PG 234 0.2553 0.13 2.2
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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