Earthquake with magnitude of Md 2.5 on date 25-03-1989 and time 06:17:14 (Italy) in region 5 km NW Castrocaro Terme e Terra del Sole (FC)

A magnitude Md 2.5 earthquake occured in region: 5 km NW Castrocaro Terme e Terra del Sole (FC), on

  • 25-03-1989 05:17:14 (UTC)
  • 25-03-1989 06:17:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.21, 11.9 at 14 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
Castrocaro Terme e Terra del Sole FC 5 6426 6426
Faenza RA 9 58541 64967
Dovadola FC 10 1653 66620
Modigliana FC 11 4560 71180
Brisighella RA 11 7639 78819
Forlì FC 11 117913 196732
Predappio FC 13 6346 203078
Castel Bolognese RA 15 9554 212632
Meldola FC 15 9970 222602
Riolo Terme RA 16 5720 228322
Rocca San Casciano FC 17 1910 230232
Solarolo RA 18 4488 234720
Forlimpopoli FC 18 13290 248010
Tredozio FC 19 1212 249222
Bertinoro FC 20 11059 260281
Cotignola RA 20 7474 267755

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km S of Faenza (58541 inhabitants)
11 Km W of Forlì (117913 inhabitants)
22 Km SE of Imola (69797 inhabitants)
28 Km W of Cesena (96758 inhabitants)
33 Km SW of Ravenna (159116 inhabitants)
55 Km SE of Bologna (386663 inhabitants)
55 Km W of Rimini (147750 inhabitants)
71 Km NE of Firenze (382808 inhabitants)
74 Km SE of Ferrara (133155 inhabitants)
74 Km E of Prato (191150 inhabitants)
76 Km NE of Scandicci (50609 inhabitants)
82 Km N of Arezzo (99543 inhabitants)
85 Km E of Pistoia (90315 inhabitants)
87 Km W of Pesaro (94582 inhabitants)
92 Km SE of Modena (184973 inhabitants)
97 Km S of Rovigo (51867 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 2.5
ML-VAX 1.7
1989-03-25
05:17:14
44.21 11.91 14 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 88899
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-03-25 05:17:14 ± 0.446
Latitude 44.21 ± 0.03
Longitude 11.91 ± 0.04
Depth (km) 14 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 88899

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) 4478.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 138
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00275
Epicentral distance of station farthest from the epicenter (degree) 0.01659
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 6
Type of magnitude Md
Reference to an origin 88899
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:23:24

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 88899
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
--.CTI.Z. 1989-03-25T05:18:07.16 10.0 undecidable manual SN 354 0.0166 -1.22 0
--.PII.Z. 1989-03-25T05:17:51.39 10.0 undecidable manual SN 244 0.01 0.63 0.2
--.ARV.Z. 1989-03-25T05:17:48.20 10.0 undecidable manual SN 133 0.0092 -0.94 0.1
--.BDI.Z. 1989-03-25T05:17:46.35 10.0 undecidable manual SN 261 0.0085 -0.68 0.2
--.CTI.Z. 1989-03-25T05:17:45.93 10.0 undecidable manual PN 354 0.0166 0.23 1
--.ARV.Z. 1989-03-25T05:17:35.20 10.0 undecidable manual PN 133 0.0092 0.71 0.5
--.PII.Z. 1989-03-25T05:17:35.55 10.0 undecidable manual PN 244 0.01 0.03 1.5
--.BDI.Z. 1989-03-25T05:17:33.77 10.0 undecidable manual PN 261 0.0085 0.4 1.1
--.PGD.Z. 1989-03-25T05:17:27.65 10.0 undecidable manual SG 201 0.0032 -0.54 0.3
--.SFI.Z. 1989-03-25T05:17:26.48 10.0 undecidable manual SG 187 0.0028 -0.08 0.6
--.PGD.Z. 1989-03-25T05:17:22.50 10.0 positive manual PG 201 0.0032 0.01 3.3
--.SFI.Z. 1989-03-25T05:17:21.45 10.0 negative manual PG 187 0.0028 -0.11 3.2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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