Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.4 on date 06-02-1997 and time 15:26:02 (UTC) in region 4 km N Ragalna (CT)

A magnitude Md 2.4 earthquake occured in region: 4 km N Ragalna (CT), on

  • 06-02-1997 15:26:02 (UTC)
  • 06-02-1997 16:26:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6700, 14.9450 at 4 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 4 3924 3924
Biancavilla CT 7 24007 27931
Santa Maria di Licodia CT 8 7641 35572
Belpasso CT 9 28108 63680
Nicolosi CT 10 7463 71143
Adrano CT 10 36122 107265
Paternò CT 11 48228 155493
Pedara CT 12 14102 169595
Camporotondo Etneo CT 13 5023 174618
San Pietro Clarenza CT 13 7743 182361
Trecastagni CT 13 10910 193271
Zafferana Etnea CT 14 9517 202788
Mascalucia CT 14 31958 234746
Viagrande CT 15 8563 243309
Tremestieri Etneo CT 15 20589 263898
Gravina di Catania CT 16 25838 289736
Milo CT 16 1087 290823
Bronte CT 16 19172 309995
Aci Bonaccorsi CT 17 3524 313519
San Giovanni la Punta CT 17 23060 336579
Sant'Agata li Battiati CT 17 9479 346058
Santa Venerina CT 17 8592 354650
Misterbianco CT 17 49410 404060
Aci Sant'Antonio CT 17 17984 422044
Motta Sant'Anastasia CT 18 12116 434160
San Gregorio di Catania CT 19 11966 446126
Centuripe EN 19 5470 451596
Valverde CT 19 7840 459436
Aci Catena CT 19 29851 489287
Maletto CT 19 3920 493207
Sant'Alfio CT 20 1582 494789

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km W of Acireale (52622 inhabitants)
22 Km NW of Catania (314555 inhabitants)
74 Km NW of Siracusa (122291 inhabitants)
79 Km SW of Reggio di Calabria (183035 inhabitants)
79 Km SW of Messina (238439 inhabitants)
80 Km E of Caltanissetta (63360 inhabitants)
85 Km N of Ragusa (73313 inhabitants)
88 Km NE of Vittoria (63339 inhabitants)
91 Km NE of Gela (75827 inhabitants)
92 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 2.0 		1997-02-06
15:26:02		 37.67 14.945 4 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 260599
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-02-06 15:26:02 ± 0.273
Latitude 37.6700 ± 0.0123
Longitude 14.9450 ± 0.0143
Depth (km) 4 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 260599

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) 1857.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
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) 0.00291
Epicentral distance of station farthest from the epicenter (degree) 0.00971
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 260599
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:06:32

ML:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 260599
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. 1997-02-06T15:26:36.74 10.0 undecidable manual SG 64 0.9657 0.62 0.4
--.GIB.Z. 1997-02-06T15:26:31.53 10.0 undecidable manual SG 293 0.7881 0.92 0.2
--.CS9.Z. 1997-02-06T15:26:29.47 10.0 undecidable manual SG 291 0.7326 0.54 0.5
--.MO9.Z. 1997-02-06T15:26:26.74 10.0 undecidable manual SG 60 0.6771 -0.2 0.6
--.FAI.Z. 1997-02-06T15:26:25.41 10.0 undecidable manual PG 248 1.0767 1.39 0.2
--.PZI.Z. 1997-02-06T15:26:24.50 10.0 undecidable manual SG 179 0.6105 -0.41 0.5
--.ATN.Z. 1997-02-06T15:26:23.90 10.0 undecidable manual SG! 39 0.6327 -2.51 0
--.SOI.Z. 1997-02-06T15:26:21.15 10.0 undecidable manual PG 64 0.9657 -0.58 0.9
--.AU9.Z. 1997-02-06T15:26:21.00 10.0 undecidable manual SG 152 0.4662 0.77 0.3
--.GIB.Z. 1997-02-06T15:26:18.45 10.0 undecidable manual PG 293 0.7881 -0.1 1.5
--.MO9.Z. 1997-02-06T15:26:17.48 10.0 undecidable manual PG 60 0.6771 1.05 0.5
--.CS9.Z. 1997-02-06T15:26:16.97 10.0 positive manual PG 291 0.7326 -0.61 2.1
--.ATN.Z. 1997-02-06T15:26:15.30 10.0 positive manual PG 39 0.6327 -0.36 2.8
--.PZI.Z. 1997-02-06T15:26:14.00 10.0 undecidable manual PG 179 0.6105 -1.25 0.3
--.MNO.Z. 1997-02-06T15:26:14.82 10.0 undecidable manual SG 322 0.3219 0.02 0.6
--.AU9.Z. 1997-02-06T15:26:13.00 10.0 undecidable manual PG 152 0.4662 0.44 1.3
--.MNO.Z. 1997-02-06T15:26:09.47 10.0 negative manual PG 322 0.3219 0.05 3.2
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