Earthquake with magnitude of Md 2.3 on date 11-10-1988 and time 09:11:12 (Italy) in region 6 km N Regalbuto (EN)

A magnitude Md 2.3 earthquake occured in region: 6 km N Regalbuto (EN), on

  • 11-10-1988 08:11:12 (UTC)
  • 11-10-1988 09:11:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7050, 14.6210 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
Regalbuto EN 6 7277 7277
Gagliano Castelferrato EN 8 3593 10870
Troina EN 9 9373 20243
Agira EN 10 8345 28588
Centuripe EN 14 5470 34058
Cerami EN 16 2006 36064
Nissoria EN 16 3000 39064
Catenanuova EN 16 4866 43930
San Teodoro ME 17 1403 45333
CesarĂ² ME 18 2439 47772
Assoro EN 19 5191 52963
Adrano CT 19 36122 89085

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km NW of Catania (314555 inhabitants)
49 Km W of Acireale (52622 inhabitants)
55 Km E of Caltanissetta (63360 inhabitants)
78 Km NE of Gela (75827 inhabitants)
84 Km N of Vittoria (63339 inhabitants)
87 Km N of Ragusa (73313 inhabitants)
93 Km NW of Siracusa (122291 inhabitants)
95 Km N of Modica (54633 inhabitants)
99 Km SW of Messina (238439 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 2.3
ML-VAX 1.9
1988-10-11
08:11:12
37.705 14.621 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 78509
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-10-11 08:11:12 ± 0.272
Latitude 37.7050 ± 0.0141
Longitude 14.6210 ± 0.0297
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 78509

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) 3051.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00210
Epicentral distance of station farthest from the epicenter (degree) 0.00785
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 78509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:13:50

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 78509
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
--.SA1.Z. 1988-10-11T08:11:43.23 10.0 undecidable manual SG 10 0.8769 -0.56 0.5
--.PZI.Z. 1988-10-11T08:11:38.10 10.0 undecidable manual SG 158 0.6882 -0.11 0.7
--.MEU.Z. 1988-10-11T08:11:36.43 10.0 undecidable manual SG 164 0.6105 0.87 0.5
--.GIB.Z. 1988-10-11T08:11:33.38 10.0 undecidable manual SG 301 0.5439 0.01 0.7
--.ATN.Z. 1988-10-11T08:11:28.52 10.0 undecidable manual PG 55 0.7992 -0.92 1
--.SA1.Z. 1988-10-11T08:11:28.84 10.0 undecidable manual PG 10 0.8769 -1.89 0.2
--.PZI.Z. 1988-10-11T08:11:27.33 10.0 undecidable manual PG 158 0.6882 -0.18 1.7
--.MEU.Z. 1988-10-11T08:11:26.35 10.0 undecidable manual PG 164 0.6105 0.37 1.7
--.GIB.Z. 1988-10-11T08:11:24.56 10.0 undecidable manual PG 301 0.5439 -0.16 1.8
--.MNO.Z. 1988-10-11T08:11:23.48 10.0 undecidable manual SG 14 0.2331 1.37 0.3
--.MNO.Z. 1988-10-11T08:11:19.29 10.0 negative manual PG 14 0.2331 1.07 1.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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