Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.4 on date 18-02-2001 and time 23:46:55 (Italy) in region 12 km N Ragalna (CT)

A magnitude Md 2.4 earthquake occured in region: 12 km N Ragalna (CT), on

  • 18-02-2001 22:46:55 (UTC)
  • 18-02-2001 23:46:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7370, 14.9710 at 3 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 12 3924 3924
Zafferana Etnea CT 13 9517 13441
Milo CT 13 1087 14528
Bronte CT 13 19172 33700
Biancavilla CT 14 24007 57707
Maletto CT 14 3920 61627
Nicolosi CT 14 7463 69090
Adrano CT 15 36122 105212
Santa Maria di Licodia CT 15 7641 112853
Sant'Alfio CT 15 1582 114435
Pedara CT 15 14102 128537
Santa Venerina CT 16 8592 137129
Randazzo CT 16 10900 148029
Belpasso CT 16 28108 176137
Trecastagni CT 16 10910 187047
Viagrande CT 18 8563 195610
Paternò CT 19 48228 243838
San Pietro Clarenza CT 19 7743 251581
Giarre CT 19 27659 279240
Camporotondo Etneo CT 19 5023 284263
Linguaglossa CT 19 5403 289666
Moio Alcantara ME 19 717 290383
Mascalucia CT 20 31958 322341
Aci Bonaccorsi CT 20 3524 325865
Aci Sant'Antonio CT 20 17984 343849
Tremestieri Etneo CT 20 20589 364438
Mascali CT 20 14282 378720
Piedimonte Etneo CT 20 3963 382683
Santa Domenica Vittoria ME 20 980 383663
Maniace CT 20 3765 387428

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NW of Acireale (52622 inhabitants)
28 Km NW of Catania (314555 inhabitants)
72 Km SW of Reggio di Calabria (183035 inhabitants)
72 Km SW of Messina (238439 inhabitants)
80 Km NW of Siracusa (122291 inhabitants)
85 Km E of Caltanissetta (63360 inhabitants)
93 Km N of Ragusa (73313 inhabitants)
96 Km NE of Vittoria (63339 inhabitants)
98 Km NE of Gela (75827 inhabitants)
99 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 1.7 		2001-02-18
22:46:55		 37.737 14.971 3 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 411369
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2001-02-18 22:46:55 ± 0.315
Latitude 37.7370 ± 0.0096
Longitude 14.9710 ± 0.0120
Depth (km) 3 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 411369

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) 1502.0
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 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00259
Epicentral distance of station farthest from the epicenter (degree) 0.01255
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 11
Type of magnitude Md
Reference to an origin 411369
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 23:27:29

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 8
Type of magnitude ML
Reference to an origin 411369
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
--.CLTB.Z. 2001-02-18T22:47:40.72 10.0 undecidable manual SN 263 1.3875 -0.34 0.3
--.SOI.Z. 2001-02-18T22:47:28.63 10.0 undecidable manual SG 68 0.9213 0.44 0.4
--.SA1.Z. 2001-02-18T22:47:25.47 10.0 undecidable manual SG 352 0.8214 0.04 0.6
--.GMB.Z. 2001-02-18T22:47:25.45 10.0 undecidable manual SG 57 0.7992 1 0.2
--.CLTB.Z. 2001-02-18T22:47:23.28 10.0 positive manual PN 263 1.3875 1.46 0.3
--.GIB.Z. 2001-02-18T22:47:23.44 10.0 undecidable manual SG 288 0.777 -0.51 0.4
--.LPI.Z. 2001-02-18T22:47:23.57 10.0 undecidable manual SG 357 0.7437 0.7 0.4
--.CS9.Z. 2001-02-18T22:47:22.72 10.0 undecidable manual SG 285 0.7326 0.34 0.6
--.MO9.Z. 2001-02-18T22:47:19.55 10.0 undecidable manual SG 64 0.6216 0.65 0.4
--.PZI.Z. 2001-02-18T22:47:19.50 10.0 undecidable manual SG 181 0.6771 -1.05 0.2
--.MEU.Z. 2001-02-18T22:47:18.75 10.0 undecidable manual SG 189 0.6327 -0.33 0.5
--.AU9.Z. 2001-02-18T22:47:16.53 10.0 undecidable manual SG 157 0.5217 1.08 0.2
--.ATN.Z. 2001-02-18T22:47:16.90 10.0 undecidable manual SG 42 0.5661 -0.19 0.6
--.SOI.Z. 2001-02-18T22:47:13.90 10.0 undecidable manual PG 68 0.9213 -0.48 1.1
--.LPI.Z. 2001-02-18T22:47:12.42 10.0 undecidable manual PG 357 0.7437 1.11 0.5
--.SA1.Z. 2001-02-18T22:47:11.41 10.0 undecidable manual PG 352 0.8214 -1.38 0.2
--.GMB.Z. 2001-02-18T22:47:11.93 10.0 undecidable manual PG 57 0.7992 -0.3 1.4
--.GIB.Z. 2001-02-18T22:47:10.94 10.0 undecidable manual PG 288 0.777 -0.99 0.4
--.CS9.Z. 2001-02-18T22:47:10.98 10.0 positive manual PG 285 0.7326 -0.05 3
--.MO9.Z. 2001-02-18T22:47:09.16 10.0 negative manual PG 64 0.6216 0.13 3
--.PZI.Z. 2001-02-18T22:47:09.93 10.0 undecidable manual PG 181 0.6771 -0.05 1.5
--.MNO.Z. 2001-02-18T22:47:08.20 10.0 undecidable manual SG 311 0.2886 1.33 0.2
--.MEU.Z. 2001-02-18T22:47:08.86 10.0 undecidable manual PG 189 0.6327 -0.27 1.4
--.ATN.Z. 2001-02-18T22:47:07.39 10.0 positive manual PG 42 0.5661 -0.58 2.2
--.AU9.Z. 2001-02-18T22:47:07.38 10.0 negative manual PG 157 0.5217 0.35 2.8
--.MNO.Z. 2001-02-18T22:47:02.14 10.0 negative manual PG 311 0.2886 0.06 3.1
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