Earthquake with magnitude of Md 2.8 on date 22-08-1989 and time 23:26:19 (Italy) in region 2 km NE Dovadola (FC)

A magnitude Md 2.8 earthquake occured in region: 2 km NE Dovadola (FC), on

  • 22-08-1989 21:26:19 (UTC)
  • 22-08-1989 23:26:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.14, 11.91 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
Dovadola FC 3 1653 1653
Castrocaro Terme e Terra del Sole FC 5 6426 8079
Predappio FC 7 6346 14425
Modigliana FC 10 4560 18985
Rocca San Casciano FC 10 1910 20895
Meldola FC 12 9970 30865
Forlì FC 14 117913 148778
Brisighella RA 15 7639 156417
Tredozio FC 15 1212 157629
Civitella di Romagna FC 15 3786 161415
Galeata FC 16 2516 163931
Portico e San Benedetto FC 16 756 164687
Faenza RA 17 58541 223228
Bertinoro FC 18 11059 234287
Forlimpopoli FC 18 13290 247577

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km SW of Forlì (117913 inhabitants)
17 Km S of Faenza (58541 inhabitants)
27 Km W of Cesena (96758 inhabitants)
29 Km SE of Imola (69797 inhabitants)
39 Km SW of Ravenna (159116 inhabitants)
53 Km W of Rimini (147750 inhabitants)
60 Km SE of Bologna (386663 inhabitants)
66 Km NE of Firenze (382808 inhabitants)
71 Km E of Prato (191150 inhabitants)
72 Km NE of Scandicci (50609 inhabitants)
75 Km N of Arezzo (99543 inhabitants)
81 Km SE of Ferrara (133155 inhabitants)
83 Km E of Pistoia (90315 inhabitants)
84 Km W of Pesaro (94582 inhabitants)
95 Km W of Fano (60888 inhabitants)
97 Km SE of Modena (184973 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 2.8
ML-VAX 1.8
1989-08-22
21:26:19
44.14 11.91 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 98129
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-08-22 21:26:19 ± 0.206
Latitude 44.14 ± 0.01
Longitude 11.91 ± 0.02
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 98129

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) 2153.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.0021
Epicentral distance of station farthest from the epicenter (degree) 0.02315
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

Md:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 7
Type of magnitude Md
Reference to an origin 98129
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:31:42

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 98129
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
--.RBL.Z. 1989-08-22T21:27:00.50 10.0 undecidable manual PN 26 0.0232 -0.05 0.9
--.FVI.Z. 1989-08-22T21:27:00.64 10.0 undecidable manual PN 13 0.0227 0.78 0.4
--.BOB.Z. 1989-08-22T21:26:51.60 10.0 undecidable manual PN 290 0.0168 0.3 1
--.BDI.Z. 1989-08-22T21:26:51.00 10.0 undecidable manual SG 265 0.0085 -0.37 0.5
--.CTI.Z. 1989-08-22T21:26:51.00 10.0 undecidable manual PN 354 0.0172 -0.46 0.8
--.ASS.Z. 1989-08-22T21:26:43.15 10.0 undecidable manual PN 153 0.0108 1.53 0.1
--.BDI.Z. 1989-08-22T21:26:37.00 10.0 undecidable manual PG 265 0.0085 -0.72 0.8
--.ARV.Z. 1989-08-22T21:26:37.84 10.0 undecidable manual PG 130 0.0088 -0.52 1.1
--.PGD.Z. 1989-08-22T21:26:30.95 10.0 undecidable manual SG 207 0.0026 0.47 0.5
--.CRE.Z. 1989-08-22T21:26:30.14 10.0 undecidable manual PG 176 0.0046 0.35 1.3
--.SFI.Z. 1989-08-22T21:26:28.00 10.0 undecidable manual SG 191 0.0021 -0.63 0.4
--.RSM.Z. 1989-08-22T21:26:27.75 10.0 negative manual PG 118 0.0039 -0.59 1.9
--.PGD.Z. 1989-08-22T21:26:25.65 10.0 negative manual PG 207 0.0026 -0.02 3.1
--.SFI.Z. 1989-08-22T21:26:24.66 10.0 undecidable manual PG 191 0.0021 0.07 1.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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