Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.3 on date 11-11-1988 and time 13:27:23 (Italy) in region 10 km W Milo (CT)

A magnitude Md 2.3 earthquake occured in region: 10 km W Milo (CT), on

  • 11-11-1988 12:27:23 (UTC)
  • 11-11-1988 13:27:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7400, 15.0080 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Milo CT 10 1087 1087
Zafferana Etnea CT 10 9517 10604
Sant'Alfio CT 12 1582 12186
Santa Venerina CT 13 8592 20778
Ragalna CT 14 3924 24702
Nicolosi CT 14 7463 32165
Pedara CT 14 14102 46267
Trecastagni CT 15 10910 57177
Giarre CT 16 27659 84836
Maletto CT 16 3920 88756
Viagrande CT 16 8563 97319
Biancavilla CT 16 24007 121326
Bronte CT 16 19172 140498
Randazzo CT 16 10900 151398
Linguaglossa CT 17 5403 156801
Belpasso CT 17 28108 184909
Mascali CT 17 14282 199191
Piedimonte Etneo CT 17 3963 203154
Santa Maria di Licodia CT 17 7641 210795
Riposto CT 17 14838 225633
Adrano CT 18 36122 261755
Aci Bonaccorsi CT 18 3524 265279
Aci Sant'Antonio CT 18 17984 283263
Moio Alcantara ME 18 717 283980
San Pietro Clarenza CT 19 7743 291723
Fiumefreddo di Sicilia CT 19 9623 301346
Castiglione di Sicilia CT 19 3215 304561
Mascalucia CT 19 31958 336519
Tremestieri Etneo CT 19 20589 357108
Camporotondo Etneo CT 19 5023 362131
Aci Catena CT 19 29851 391982
San Giovanni la Punta CT 20 23060 415042
Acireale CT 20 52622 467664
Santa Domenica Vittoria ME 20 980 468644

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of Acireale (52622 inhabitants)
27 Km N of Catania (314555 inhabitants)
69 Km SW of Reggio di Calabria (183035 inhabitants)
70 Km SW of Messina (238439 inhabitants)
80 Km NW of Siracusa (122291 inhabitants)
88 Km E of Caltanissetta (63360 inhabitants)
94 Km N of Ragusa (73313 inhabitants)
97 Km NE of Vittoria (63339 inhabitants)
100 Km N of Modica (54633 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 1.8 		1988-11-11
12:27:23		 37.74 15.008 10 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 80999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-11-11 12:27:23 ± 0.157
Latitude 37.7400 ± 0.0108
Longitude 15.0080 ± 0.0138
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 80999

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) 1705.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.00793
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 7
Type of magnitude Md
Reference to an origin 80999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:16:12

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 80999
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
--.SOI.Z. 1988-11-11T12:27:54.79 10.0 undecidable manual SG 67 0.8769 0.45 0.4
--.GIB.Z. 1988-11-11T12:27:53.00 10.0 undecidable manual SG 287 0.8103 1.1 0
--.SC9.Z. 1988-11-11T12:27:51.00 10.0 undecidable manual SG 46 0.7548 0.84 0.2
--.PZI.Z. 1988-11-11T12:27:48.88 10.0 undecidable manual SG 183 0.6882 1.07 0.1
--.MEU.Z. 1988-11-11T12:27:45.86 10.0 undecidable manual SG 192 0.6327 -0.62 0.3
--.ATN.Z. 1988-11-11T12:27:43.60 10.0 undecidable manual SG 40 0.5439 0.16 0.8
--.SOI.Z. 1988-11-11T12:27:41.10 10.0 undecidable manual PG 67 0.8769 -0.36 1.3
--.GIB.Z. 1988-11-11T12:27:40.00 10.0 undecidable manual PG 287 0.8103 -0.05 1.8
--.SC9.Z. 1988-11-11T12:27:39.00 10.0 undecidable manual PG 46 0.7548 -0.05 1.9
--.PZI.Z. 1988-11-11T12:27:37.88 10.0 undecidable manual PG 183 0.6882 0.18 1.9
--.MEU.Z. 1988-11-11T12:27:36.54 10.0 undecidable manual PG 192 0.6327 -0.39 1.4
--.MNO.Z. 1988-11-11T12:27:35.17 10.0 undecidable manual SG 307 0.3108 -0.68 0.3
--.ATN.Z. 1988-11-11T12:27:34.81 10.0 undecidable manual PG 40 0.5439 -0.36 1.5
--.MNO.Z. 1988-11-11T12:27:30.79 10.0 undecidable manual PG 307 0.3108 0 2.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download