Earthquake with magnitude of Md 2.6 on date 08-09-1989 and time 20:14:40 (Italy) in region 10 km E San Godenzo (FI)

A magnitude Md 2.6 earthquake occured in region: 10 km E San Godenzo (FI), on

  • 08-09-1989 18:14:40 (UTC)
  • 08-09-1989 20:14:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.89, 11.73 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
San Godenzo FI 10 1167 1167
Premilcuore FC 11 799 1966
Pratovecchio Stia AR 11 5845 7811
Londa FI 14 1840 9651
Santa Sofia FC 16 4136 13787
Portico e San Benedetto FC 16 756 14543
Castel San Niccolò AR 16 2707 17250
Dicomano FI 17 5515 22765
Poppi AR 18 6160 28925
Montemignaio AR 19 566 29491
Galeata FC 19 2516 32007

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Firenze (382808 inhabitants)
45 Km SW of Forlì (117913 inhabitants)
46 Km S of Faenza (58541 inhabitants)
46 Km E of Scandicci (50609 inhabitants)
48 Km N of Arezzo (99543 inhabitants)
49 Km SW of Cesena (96758 inhabitants)
51 Km E of Prato (191150 inhabitants)
52 Km S of Imola (69797 inhabitants)
65 Km E of Pistoia (90315 inhabitants)
70 Km W of Rimini (147750 inhabitants)
70 Km SW of Ravenna (159116 inhabitants)
71 Km NE of Siena (53903 inhabitants)
74 Km SE of Bologna (386663 inhabitants)
95 Km W of Pesaro (94582 inhabitants)
99 Km E of Lucca (89046 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 2.6
ML-VAX 1.8
1989-09-08
18:14:40
43.89 11.73 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 99059
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-09-08 18:14:40 ± 0.154
Latitude 43.89 ± 0.02
Longitude 11.73 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 99059

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) 2064
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 146
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.00947
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

Md:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 99059
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:32:32

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 99059
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
--.ASS.Z. 1989-09-08T18:15:15.90 10.0 undecidable manual SN 140 0.0095 -0.24 0.5
--.ARV.Z. 1989-09-08T18:15:12.77 10.0 undecidable manual SG 113 0.0086 -0.29 0.5
--.PII.Z. 1989-09-08T18:15:10.72 10.0 undecidable manual SG 259 0.0079 -0.06 0.7
--.BDI.Z. 1989-09-08T18:15:09.17 10.0 undecidable manual SG 282 0.0074 0.08 0.7
--.MME.Z. 1989-09-08T18:15:07.73 10.0 undecidable manual SG 292 0.0072 -0.31 0.8
--.ASS.Z. 1989-09-08T18:15:01.31 10.0 undecidable manual PN 140 0.0095 0.32 1.1
--.ARV.Z. 1989-09-08T18:14:59.90 10.0 undecidable manual PG 113 0.0086 -0.12 1.6
--.RSM.Z. 1989-09-08T18:14:59.15 10.0 undecidable manual SG 85 0.0046 0.17 0.7
--.PII.Z. 1989-09-08T18:14:57.99 10.0 undecidable manual PG 259 0.0079 0.09 1.7
--.BDI.Z. 1989-09-08T18:14:57.22 10.0 undecidable manual PG 282 0.0074 0.3 1.4
--.MME.Z. 1989-09-08T18:14:56.31 10.0 undecidable manual PG 292 0.0072 -0.01 1.9
--.CRE.Z. 1989-09-08T18:14:53.50 10.0 undecidable manual SG 149 0.0028 1.21 0
--.RSM.Z. 1989-09-08T18:14:51.15 10.0 undecidable manual PG 85 0.0046 0.06 2
--.CRE.Z. 1989-09-08T18:14:46.40 10.0 undecidable manual PG 149 0.0028 -0.82 0.2
--.SFI.Z. 1989-09-08T18:14:45.43 10.0 undecidable manual SG 78 0.0007 0.48 0.4
--.SFI.Z. 1989-09-08T18:14:42.77 10.0 undecidable manual PG 78 0.0007 -0.2 1.8
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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