A magnitude Md 2.3 earthquake occured in region: 8 km N Ragalna (CT), on
and geographic coordinates (lat, lon) 37.7040, 14.9440 at 14 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.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Ragalna | CT | 8 | 3924 | 3924 |
Biancavilla | CT | 9 | 24007 | 27931 |
Adrano | CT | 11 | 36122 | 64053 |
Santa Maria di Licodia | CT | 11 | 7641 | 71694 |
Nicolosi | CT | 12 | 7463 | 79157 |
Belpasso | CT | 13 | 28108 | 107265 |
Bronte | CT | 14 | 19172 | 126437 |
Pedara | CT | 14 | 14102 | 140539 |
Zafferana Etnea | CT | 14 | 9517 | 150056 |
PaternĂ² | CT | 15 | 48228 | 198284 |
Trecastagni | CT | 15 | 10910 | 209194 |
Milo | CT | 15 | 1087 | 210281 |
Maletto | CT | 16 | 3920 | 214201 |
Camporotondo Etneo | CT | 16 | 5023 | 219224 |
San Pietro Clarenza | CT | 16 | 7743 | 226967 |
Viagrande | CT | 17 | 8563 | 235530 |
Santa Venerina | CT | 17 | 8592 | 244122 |
Mascalucia | CT | 17 | 31958 | 276080 |
Tremestieri Etneo | CT | 18 | 20589 | 296669 |
Sant'Alfio | CT | 18 | 1582 | 298251 |
Aci Bonaccorsi | CT | 19 | 3524 | 301775 |
Gravina di Catania | CT | 19 | 25838 | 327613 |
San Giovanni la Punta | CT | 19 | 23060 | 350673 |
Aci Sant'Antonio | CT | 19 | 17984 | 368657 |
Randazzo | CT | 20 | 10900 | 379557 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3 | 1991-04-21 03:16:00 |
37.704 | 14.944 | 14 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 139729 |
Field | Value |
---|---|
Time (UTC) | 1991-04-21 03:16:00 ± 0.176 |
Latitude | 37.7040 ± 0.0115 |
Longitude | 14.9440 ± 0.0145 |
Depth (km) | 14 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 139729 |
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) | 1807.4 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 112 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 18 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.4 |
Epicentral distance of station closest to the epicenter (degree) | 0.00267 |
Epicentral distance of station farthest from the epicenter (degree) | 0.01595 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 2.3 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | Md |
Reference to an origin | 139729 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:10:25 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.CZI.Z. | 1991-04-21T03:16:52.20 | 10.0 | undecidable | manual | SN | 31 | 1.7649 | -0.66 | 0.3 | |
--.DR2.Z. | 1991-04-21T03:16:37.94 | 10.0 | undecidable | manual | SN | 39 | 1.2099 | -1.65 | 0 | |
--.FE2.Z. | 1991-04-21T03:16:34.60 | 10.0 | undecidable | manual | SN | 69 | 0.9546 | 1.12 | 0.1 | |
--.CZI.Z. | 1991-04-21T03:16:30.75 | 10.0 | undecidable | manual | PN | 31 | 1.7649 | -0.16 | 1.3 | |
--.GA2.Z. | 1991-04-21T03:16:29.20 | 10.0 | undecidable | manual | SG | 55 | 0.8325 | -0.57 | 0.5 | |
--.GIB.Z. | 1991-04-21T03:16:28.00 | 10.0 | undecidable | manual | SG | 291 | 0.777 | 0.14 | 0.8 | |
--.DR2.Z. | 1991-04-21T03:16:24.25 | 10.0 | undecidable | manual | PN | 39 | 1.2099 | 1 | 0.4 | |
--.PZI.Z. | 1991-04-21T03:16:22.50 | 10.0 | undecidable | manual | SG | 179 | 0.6438 | -1.14 | 0.1 | |
--.ATN.Z. | 1991-04-21T03:16:22.50 | 10.0 | undecidable | manual | SG | 41 | 0.5994 | 0.01 | 0.8 | |
--.FE2.Z. | 1991-04-21T03:16:19.66 | 10.0 | undecidable | manual | PN | 69 | 0.9546 | -0.06 | 1.9 | |
--.AU9.Z. | 1991-04-21T03:16:19.20 | 10.0 | undecidable | manual | SG | 153 | 0.4995 | 0.24 | 0.8 | |
--.GA2.Z. | 1991-04-21T03:16:17.78 | 10.0 | undecidable | manual | PG | 55 | 0.8325 | 0.21 | 1.9 | |
--.GIB.Z. | 1991-04-21T03:16:16.50 | 10.0 | undecidable | manual | PG | 291 | 0.777 | 0.03 | 2.1 | |
--.ATN.Z. | 1991-04-21T03:16:13.00 | 10.0 | undecidable | manual | PG | 41 | 0.5994 | -0.37 | 1.7 | |
--.PZI.Z. | 1991-04-21T03:16:13.50 | 10.0 | undecidable | manual | PG | 179 | 0.6438 | -0.54 | 1.4 | |
--.AU9.Z. | 1991-04-21T03:16:12.00 | 10.0 | undecidable | manual | PG | 153 | 0.4995 | 0.67 | 1.1 | |
--.MNO.Z. | 1991-04-21T03:16:12.50 | 10.0 | undecidable | manual | SG | 319 | 0.2997 | -0.14 | 0.8 | |
--.MNO.Z. | 1991-04-21T03:16:07.80 | 10.0 | undecidable | manual | PG | 319 | 0.2997 | 0.11 | 2 |