Earthquake with magnitude of Md 2.2 on date 03-08-1999 and time 11:39:35 (Italy) in region 6 km NE Biancavilla (CT)

A magnitude Md 2.2 earthquake occured in region: 6 km NE Biancavilla (CT), on

  • 03-08-1999 09:39:35 (UTC)
  • 03-08-1999 11:39:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6900, 14.9120 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
Biancavilla CT 6 24007 24007
Ragalna CT 7 3924 27931
Adrano CT 8 36122 64053
Santa Maria di Licodia CT 8 7641 71694
Belpasso CT 12 28108 99802
PaternĂ² CT 13 48228 148030
Bronte CT 13 19172 167202
Nicolosi CT 13 7463 174665
Pedara CT 15 14102 188767
Camporotondo Etneo CT 16 5023 193790
Maletto CT 16 3920 197710
San Pietro Clarenza CT 16 7743 205453
Trecastagni CT 17 10910 216363
Centuripe EN 17 5470 221833
Zafferana Etnea CT 17 9517 231350
Mascalucia CT 18 31958 263308
Milo CT 18 1087 264395
Viagrande CT 19 8563 272958
Tremestieri Etneo CT 19 20589 293547
Gravina di Catania CT 20 25838 319385

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km W of Acireale (52622 inhabitants)
26 Km NW of Catania (314555 inhabitants)
78 Km NW of Siracusa (122291 inhabitants)
78 Km E of Caltanissetta (63360 inhabitants)
79 Km SW of Reggio di Calabria (183035 inhabitants)
80 Km SW of Messina (238439 inhabitants)
86 Km N of Ragusa (73313 inhabitants)
89 Km NE of Vittoria (63339 inhabitants)
91 Km NE of Gela (75827 inhabitants)
93 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 2.2
ML-VAX 1.6
1999-08-03
09:39:35
37.69 14.912 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 371439
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-08-03 09:39:35 ± 0.305
Latitude 37.6900 ± 0.0200
Longitude 14.9120 ± 0.0204
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 371439

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) 2852.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00267
Epicentral distance of station farthest from the epicenter (degree) 0.00874
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 371439
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:48:34

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 371439
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. 1999-08-03T09:40:09.56 10.0 undecidable manual SG 66 0.9657 -0.21 0.7
--.GIB.Z. 1999-08-03T09:40:03.62 10.0 undecidable manual SG 293 0.7548 0.89 0.3
--.SOI.Z. 1999-08-03T09:39:55.51 10.0 undecidable manual PG 66 0.9657 0.25 1.7
--.MEU.Z. 1999-08-03T09:39:55.40 10.0 undecidable manual SG 186 0.5772 -1.6 0.1
--.GIB.Z. 1999-08-03T09:39:51.24 10.0 undecidable manual PG 293 0.7548 0.04 2.1
--.MEU.Z. 1999-08-03T09:39:48.55 10.0 undecidable manual PG 186 0.5772 0.66 1.4
--.MNO.Z. 1999-08-03T09:39:46.58 10.0 undecidable manual SG 324 0.2997 -0.47 0.7
--.MNO.Z. 1999-08-03T09:39:41.36 10.0 undecidable manual PG 324 0.2997 -0.79 1.1
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