Earthquake with magnitude of Md 2.6 on date 14-05-1988 and time 08:58:13 (Italy) in region 5 km S Isnello (PA)

A magnitude Md 2.6 earthquake occured in region: 5 km S Isnello (PA), on

  • 14-05-1988 06:58:13 (UTC)
  • 14-05-1988 08:58:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.9, 13.99 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
Isnello PA 5 1589 1589
Collesano PA 5 4054 5643
Gratteri PA 7 963 6606
Castelbuono PA 9 8943 15549
Scillato PA 9 613 16162
Polizzi Generosa PA 10 3407 19569
Lascari PA 12 3588 23157
Caltavuturo PA 13 4017 27174
Campofelice di Roccella PA 14 7537 34711
Petralia Sottana PA 14 2821 37532
Castellana Sicula PA 14 3411 40943
Sclafani Bagni PA 15 426 41369
Geraci Siculo PA 15 1945 43314
Cefal├╣ PA 15 14393 57707
Cerda PA 15 5330 63037
Petralia Soprana PA 16 3360 66397
Pollina PA 17 2974 69371
San Mauro Castelverde PA 18 1701 71072
Blufi PA 18 1029 72101
Aliminusa PA 19 1236 73337
Bompietro PA 20 1401 74738

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km N of Caltanissetta (63360 inhabitants)
46 Km E of Bagheria (55387 inhabitants)
60 Km E of Palermo (674435 inhabitants)
75 Km NE of Agrigento (59770 inhabitants)
96 Km N of Gela (75827 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 2.6
ML-VAX 2.1
1988-05-14
06:58:13
37.91 13.99 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 69229
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-05-14 06:58:13 ± 0.412
Latitude 37.91 ± 0.03
Longitude 13.99 ± 0.05
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 69229

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) 5523.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00073
Epicentral distance of station farthest from the epicenter (degree) 0.0106
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:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 69229
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:05:34

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 69229
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
--.MNO.Z. 1988-05-14T06:58:36.00 10.0 undecidable manual SG 86 0.0049 1.52 0.3
--.ATN.Z. 1988-05-14T06:58:34.77 10.0 undecidable manual PN 77 0.0106 -2.13 0.3
--.SA1.Z. 1988-05-14T06:58:33.60 10.0 undecidable manual PG 44 0.0083 0.35 1.3
--.FAI.Z. 1988-05-14T06:58:30.00 10.0 undecidable manual PG 202 0.0061 1.9 0.6
--.MCT.Z. 1988-05-14T06:58:29.50 10.0 undecidable manual SG 226 0.0037 -0.87 0.5
--.MNO.Z. 1988-05-14T06:58:25.22 10.0 undecidable manual PG 86 0.0049 -0.51 1.8
--.MCT.Z. 1988-05-14T06:58:23.10 10.0 undecidable manual PG 226 0.0037 0 1.9
--.GIB.Z. 1988-05-14T06:58:18.79 10.0 undecidable manual SG 18 0.0007 1.17 0.4
--.GIB.Z. 1988-05-14T06:58:15.70 10.0 undecidable manual PG 18 0.0007 -0.3 1.9
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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