Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.4 on date 12-10-1999 and time 03:19:11 (Italy) in region 7 km NE Ragalna (CT)

A magnitude Md 2.4 earthquake occured in region: 7 km NE Ragalna (CT), on

  • 12-10-1999 01:19:11 (UTC)
  • 12-10-1999 03:19:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6910, 14.9690 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.

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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
Ragalna CT 7 3924 3924
Nicolosi CT 10 7463 11387
Biancavilla CT 10 24007 35394
Santa Maria di Licodia CT 11 7641 43035
Belpasso CT 11 28108 71143
Pedara CT 11 14102 85245
Zafferana Etnea CT 12 9517 94762
Adrano CT 12 36122 130884
Trecastagni CT 13 10910 141794
Milo CT 14 1087 142881
Paternò CT 14 48228 191109
San Pietro Clarenza CT 14 7743 198852
Camporotondo Etneo CT 14 5023 203875
Viagrande CT 14 8563 212438
Santa Venerina CT 15 8592 221030
Mascalucia CT 15 31958 252988
Tremestieri Etneo CT 16 20589 273577
Aci Bonaccorsi CT 16 3524 277101
Bronte CT 16 19172 296273
Sant'Alfio CT 17 1582 297855
Gravina di Catania CT 17 25838 323693
Aci Sant'Antonio CT 17 17984 341677
San Giovanni la Punta CT 17 23060 364737
Sant'Agata li Battiati CT 18 9479 374216
Maletto CT 18 3920 378136
Aci Catena CT 18 29851 407987
Valverde CT 19 7840 415827
San Gregorio di Catania CT 19 11966 427793
Misterbianco CT 19 49410 477203
Giarre CT 20 27659 504862
Acireale CT 20 52622 557484
Motta Sant'Anastasia CT 20 12116 569600

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km W of Acireale (52622 inhabitants)
23 Km NW of Catania (314555 inhabitants)
75 Km SW of Reggio di Calabria (183035 inhabitants)
76 Km NW of Siracusa (122291 inhabitants)
76 Km SW of Messina (238439 inhabitants)
83 Km E of Caltanissetta (63360 inhabitants)
88 Km N of Ragusa (73313 inhabitants)
91 Km NE of Vittoria (63339 inhabitants)
94 Km NE of Gela (75827 inhabitants)
94 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 2.4
ML-VAX 1.6 		1999-10-12
01:19:11		 37.691 14.969 5 2013-07-15
08:41:04		 Bollettino Sismico Italiano INGV 375169
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-10-12 01:19:11 ± 0.133
Latitude 37.6910 ± 0.0079
Longitude 14.9690 ± 0.0126
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 375169

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) 1413.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
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) 0.00291
Epicentral distance of station farthest from the epicenter (degree) 0.01255
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 6
Type of magnitude Md
Reference to an origin 375169
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:52:14

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 6
Type of magnitude ML
Reference to an origin 375169
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. 1999-10-12T01:19:45.90 10.0 undecidable manual SG 65 0.9324 0.26 0.5
--.CLTB.Z. 1999-10-12T01:19:39.16 10.0 undecidable manual PN 265 1.3875 1.32 0.1
--.PZI.Z. 1999-10-12T01:19:35.39 10.0 undecidable manual SG 181 0.6327 0.27 0.6
--.SOI.Z. 1999-10-12T01:19:31.27 10.0 undecidable manual PG 65 0.9324 0.37 1.2
--.AU9.Z. 1999-10-12T01:19:30.16 10.0 undecidable manual SG 155 0.4773 0.01 0.7
--.GIB.Z. 1999-10-12T01:19:29.50 10.0 undecidable manual PG 291 0.7992 0.67 1
--.SA1.Z. 1999-10-12T01:19:29.67 10.0 undecidable manual PG 352 0.8769 -0.12 1.4
--.CS9.Z. 1999-10-12T01:19:26.92 10.0 undecidable manual PG 289 0.7437 -0.51 0.8
--.MO9.Z. 1999-10-12T01:19:25.38 10.0 undecidable manual PG 61 0.6438 -0.2 1.6
--.MNO.Z. 1999-10-12T01:19:24.13 10.0 undecidable manual SG 318 0.3219 -0.37 0.4
--.PZI.Z. 1999-10-12T01:19:24.64 10.0 undecidable manual PG 181 0.6327 -0.65 0.7
--.MEU.Z. 1999-10-12T01:19:24.61 10.0 undecidable manual PG 190 0.5883 0.16 1.7
--.AU9.Z. 1999-10-12T01:19:22.20 10.0 undecidable manual PG 155 0.4773 -0.22 1.6
--.MNO.Z. 1999-10-12T01:19:19.13 10.0 undecidable manual PG 318 0.3219 -0.03 1.7
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