Earthquake with magnitude of Md 2.3 on date 26-03-1989 and time 23:30:15 (Italy) in region 6 km E Faenza (RA)

A magnitude Md 2.3 earthquake occured in region: 6 km E Faenza (RA), on

  • 26-03-1989 21:30:15 (UTC)
  • 26-03-1989 23:30:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.28, 11.96 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
Faenza RA 6 58541 58541
Forlì FC 9 117913 176454
Castrocaro Terme e Terra del Sole FC 12 6426 182880
Cotignola RA 12 7474 190354
Russi RA 12 12247 202601
Solarolo RA 13 4488 207089
Castel Bolognese RA 13 9554 216643
Bagnacavallo RA 15 16739 233382
Bagnara di Romagna RA 16 2429 235811
Lugo RA 16 32390 268201
Brisighella RA 16 7639 275840
Forlimpopoli FC 17 13290 289130
Mordano BO 18 4760 293890
Riolo Terme RA 18 5720 299610
Dovadola FC 18 1653 301263
Modigliana FC 19 4560 305823
Meldola FC 19 9970 315793
Sant'Agata sul Santerno RA 20 2862 318655
Predappio FC 20 6346 325001

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km E of Faenza (58541 inhabitants)
9 Km NW of Forlì (117913 inhabitants)
21 Km E of Imola (69797 inhabitants)
25 Km SW of Ravenna (159116 inhabitants)
28 Km NW of Cesena (96758 inhabitants)
54 Km E of Bologna (386663 inhabitants)
54 Km W of Rimini (147750 inhabitants)
67 Km SE of Ferrara (133155 inhabitants)
80 Km NE of Firenze (382808 inhabitants)
82 Km NE of Prato (191150 inhabitants)
85 Km NE of Scandicci (50609 inhabitants)
87 Km W of Pesaro (94582 inhabitants)
89 Km S of Rovigo (51867 inhabitants)
91 Km N of Arezzo (99543 inhabitants)
91 Km E of Modena (184973 inhabitants)
91 Km E of Pistoia (90315 inhabitants)
98 Km W of Fano (60888 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
ML-VAX 1.9
1989-03-26
21:30:15
44.28 11.96 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 88969
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-03-26 21:30:15 ± 0.701
Latitude 44.28 ± 0.04
Longitude 11.96 ± 0.03
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 88969

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) 5172.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 236
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.0034
Epicentral distance of station farthest from the epicenter (degree) 0.00899
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 88969
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:23:28

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 88969
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
--.BDI.Z. 1989-03-26T21:30:35.70 10.0 undecidable manual PG 257 0.009 0.38 1.1
--.RSM.Z. 1989-03-26T21:30:33.15 10.0 undecidable manual SG 134 0.0045 0.12 0.8
--.SFI.Z. 1989-03-26T21:30:30.89 10.0 undecidable manual SG 191 0.0034 1.55 0
--.PGD.Z. 1989-03-26T21:30:30.49 10.0 undecidable manual SG 202 0.0039 -0.59 0.5
--.RSM.Z. 1989-03-26T21:30:25.60 10.0 undecidable manual PG 134 0.0045 0.16 1.9
--.PGD.Z. 1989-03-26T21:30:23.95 10.0 undecidable manual PG 202 0.0039 -0.37 1.6
--.SFI.Z. 1989-03-26T21:30:22.73 10.0 undecidable manual PG 191 0.0034 -0.59 1.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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