Earthquake with magnitude of Md 2.5 on date 26-04-1989 and time 00:03:13 (Italy) in region 3 km SE Castelbuono (PA)

A magnitude Md 2.5 earthquake occured in region: 3 km SE Castelbuono (PA), on

  • 25-04-1989 22:03:13 (UTC)
  • 26-04-1989 00:03:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.9200, 14.1120 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
Castelbuono PA 3 8943 8943
San Mauro Castelverde PA 7 1701 10644
Geraci Siculo PA 8 1945 12589
Pollina PA 9 2974 15563
Isnello PA 10 1589 17152
Petralia Sottana PA 13 2821 19973
Tusa ME 13 2925 22898
Gratteri PA 13 963 23861
Petralia Soprana PA 14 3360 27221
Collesano PA 15 4054 31275
Polizzi Generosa PA 15 3407 34682
Cefalù PA 16 14393 49075
Gangi PA 16 6811 55886
Castellana Sicula PA 16 3411 59297
Pettineo ME 17 1350 60647
Lascari PA 17 3588 64235
Castel di Lucio ME 18 1294 65529
Motta d'Affermo ME 18 739 66268
Blufi PA 19 1029 67297
Bompietro PA 19 1401 68698
Scillato PA 19 613 69311

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km N of Caltanissetta (63360 inhabitants)
56 Km E of Bagheria (55387 inhabitants)
69 Km E of Palermo (674435 inhabitants)
82 Km NE of Agrigento (59770 inhabitants)
96 Km N of Gela (75827 inhabitants)
98 Km NW of Catania (314555 inhabitants)
99 Km W of Acireale (52622 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 2.1
1989-04-25
22:03:13
37.92 14.112 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 90619
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-04-25 22:03:13 ± 0.26
Latitude 37.9200 ± 0.0217
Longitude 14.1120 ± 0.0242
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 90619

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) 3210.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00081
Epicentral distance of station farthest from the epicenter (degree) 0.01384
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 5
Type of magnitude Md
Reference to an origin 90619
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:25:00

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 90619
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
--.MEU.Z. 1989-04-25T22:03:49.40 10.0 undecidable manual SG 144 0.9768 1.7 0
--.PZI.Z. 1989-04-25T22:03:49.62 10.0 undecidable manual SN 142 1.0878 -1.2 0.1
--.SOI.Z. 1989-04-25T22:03:42.15 10.0 positive manual PN 83 1.5318 1.12 0.8
--.MO9.Z. 1989-04-25T22:03:36.97 10.0 negative manual PN 85 1.2432 -0.1 2.1
--.MEU.Z. 1989-04-25T22:03:33.16 10.0 undecidable manual PG 144 0.9768 0.09 1.3
--.PZI.Z. 1989-04-25T22:03:33.93 10.0 positive manual PN 142 1.0878 -0.94 1
--.MCT.Z. 1989-04-25T22:03:31.97 10.0 undecidable manual SG 232 0.4995 0.02 0.5
--.MCT.Z. 1989-04-25T22:03:24.42 10.0 undecidable manual PG 232 0.4995 0.45 1
--.GIB.Z. 1989-04-25T22:03:17.26 10.0 undecidable manual SG 315 0.0888 0.09 0.6
--.GIB.Z. 1989-04-25T22:03:15.27 10.0 negative manual PG 315 0.0888 -0.16 2.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download