Earthquake with magnitude of Md 2.3 on date 17-04-1988 and time 03:56:30 (UTC) in region 9 km W Milo (CT)

A magnitude Md 2.3 earthquake occured in region: 9 km W Milo (CT), on

  • 17-04-1988 03:56:30 (UTC)
  • 17-04-1988 05:56:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7450, 15.0150 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
Milo CT 9 1087 1087
Zafferana Etnea CT 10 9517 10604
Sant'Alfio CT 11 1582 12186
Santa Venerina CT 13 8592 20778
Ragalna CT 14 3924 24702
Nicolosi CT 15 7463 32165
Pedara CT 15 14102 46267
Giarre CT 15 27659 73926
Trecastagni CT 15 10910 84836
Linguaglossa CT 16 5403 90239
Mascali CT 16 14282 104521
Maletto CT 16 3920 108441
Piedimonte Etneo CT 16 3963 112404
Randazzo CT 16 10900 123304
Viagrande CT 17 8563 131867
Bronte CT 17 19172 151039
Riposto CT 17 14838 165877
Biancavilla CT 17 24007 189884
Belpasso CT 17 28108 217992
Moio Alcantara ME 18 717 218709
Fiumefreddo di Sicilia CT 18 9623 228332
Castiglione di Sicilia CT 18 3215 231547
Santa Maria di Licodia CT 18 7641 239188
Aci Bonaccorsi CT 18 3524 242712
Aci Sant'Antonio CT 18 17984 260696
Adrano CT 18 36122 296818
San Pietro Clarenza CT 19 7743 304561
Mascalucia CT 19 31958 336519
Aci Catena CT 19 29851 366370
Tremestieri Etneo CT 19 20589 386959
Santa Domenica Vittoria ME 20 980 387939
Camporotondo Etneo CT 20 5023 392962
Malvagna ME 20 733 393695
San Giovanni la Punta CT 20 23060 416755
Acireale CT 20 52622 469377

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of Acireale (52622 inhabitants)
28 Km N of Catania (314555 inhabitants)
69 Km SW of Reggio di Calabria (183035 inhabitants)
69 Km SW of Messina (238439 inhabitants)
80 Km N of Siracusa (122291 inhabitants)
88 Km E of Caltanissetta (63360 inhabitants)
94 Km N of Ragusa (73313 inhabitants)
98 Km NE of Vittoria (63339 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 1.5
1988-04-17
03:56:30
37.745 15.015 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 66779
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-04-17 03:56:30 ± 0.135
Latitude 37.7450 ± 0.0069
Longitude 15.0150 ± 0.0120
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 66779

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) 1306.0
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 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.00793
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 66779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:03:11

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 66779
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. 1988-04-17T03:57:02.40 10.0 undecidable manual SG 67 0.8769 0.83 0.1
--.PZI.Z. 1988-04-17T03:56:55.57 10.0 undecidable manual SG 184 0.6882 0.5 0.3
--.MEU.Z. 1988-04-17T03:56:53.63 10.0 undecidable manual SG 192 0.6438 -0.13 0.8
--.ATN.Z. 1988-04-17T03:56:49.80 10.0 undecidable manual SG 40 0.5439 -0.5 0.3
--.SOI.Z. 1988-04-17T03:56:47.45 10.0 undecidable manual PG 67 0.8769 -0.57 0.5
--.PZI.Z. 1988-04-17T03:56:44.43 10.0 undecidable manual PG 184 0.6882 -0.05 1.9
--.MEU.Z. 1988-04-17T03:56:43.49 10.0 undecidable manual PG 192 0.6438 -0.23 1.6
--.MNO.Z. 1988-04-17T03:56:42.40 10.0 undecidable manual SG 306 0.3108 0.14 0.8
--.ATN.Z. 1988-04-17T03:56:41.97 10.0 undecidable manual PG 40 0.5439 0.25 1.6
--.MNO.Z. 1988-04-17T03:56:37.90 10.0 undecidable manual PG 306 0.3108 0.01 2.1
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