A magnitude ML 1.5 (quarry blast) earthquake occured in region: 2 km SW Priolo Gargallo (SR), on
and geographic coordinates (lat, lon) 37.1500, 15.1720 at 0 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
Event type: quarry blast.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 |
---|---|---|---|---|
Priolo Gargallo | SR | 2 | 12091 | 12091 |
Melilli | SR | 5 | 13621 | 25712 |
Solarino | SR | 7 | 8091 | 33803 |
Floridia | SR | 8 | 22762 | 56565 |
Augusta | SR | 10 | 36305 | 92870 |
Sortino | SR | 12 | 8690 | 101560 |
Siracusa | SR | 15 | 122291 | 223851 |
Canicattini Bagni | SR | 16 | 7109 | 230960 |
Carlentini | SR | 20 | 17798 | 248758 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.5 | 2021-10-04 12:59:02 |
37.1497 | 15.1722 | 1 | 2022-03-30 13:04:13 |
Bollettino Sismico Italiano INGV | 96976191 |
Reviewed Rev100 |
ML 2.0 | 2021-10-04 12:59:02 |
37.1472 | 15.1967 | 6 | 2021-10-04 13:18:26 |
Sala Sismica INGV-Roma | 96206541 |
Field | Value |
---|---|
Time (UTC) | 2021-10-04 12:59:02 ± 0.05 |
Latitude | 37.1497 ± 0.0027 |
Longitude | 15.1722 ± 0.0056 |
Depth (km) | 1 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | quarry blast |
Origin ID | 96976191 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 540 |
Semi-minor axis of confidence ellipse (meter) | 280 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 244 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 540.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 151 |
Number of associated phases, regardless of their use for origin computation | 13 |
Number of defining phases | 5 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.09 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.19425 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.1 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 96976191 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-01-10 16:09:56 |
Field | Value |
---|---|
Value | 2.0 |
Uncertainty | 0.6 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 96206541 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-04 13:18:26 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PZUN.HHZ. | 2021-10-04T13:00:21.12 | 3.0 | undecidable | manual | Sg | 7.55 | 0 | |||
IT.GLNS.HNZ. | 2021-10-04T13:00:07.08 | 3.0 | positive | manual | Pg | 11.61 | 0 | |||
IV.MTTG.HHZ. | 2021-10-04T13:00:06.23 | 3.0 | undecidable | manual | P | 0 | ||||
MN.KEK.HHZ. | 2021-10-04T12:59:46.50 | 3.0 | undecidable | manual | Pn | -3.9 | 0 | |||
IV.IVUG.HHE. | 2021-10-04T12:59:44.23 | 3.0 | undecidable | manual | S | 0.52 | 0 | |||
IV.IVGP.HHE. | 2021-10-04T12:59:43.44 | 3.0 | undecidable | manual | S | -0.38 | 0 | |||
IV.IVGP.HHE. | 2021-10-04T12:59:26.54 | 3.0 | undecidable | manual | P | 0.05 | 0 | |||
IV.IVUG.HHE. | 2021-10-04T12:59:26.53 | 3.0 | undecidable | manual | P | 0.1 | 0 | |||
IV.HAVL.HHZ. | 2021-10-04T12:59:07.16 | 0.3 | undecidable | manual | P | 192 | 21.5673 | 91 | -0.11 | 72 |
IV.HCRL.HHE. | 2021-10-04T12:59:06.81 | 0.3 | undecidable | manual | P | 320 | 19.2696 | 91 | 0 | 74 |
IV.HAGA.HHE. | 2021-10-04T12:59:05.93 | 0.3 | undecidable | manual | P | 354 | 15.0738 | 92 | -0.05 | 74 |
IV.SSY.HHZ. | 2021-10-04T12:59:04.78 | 0.3 | undecidable | manual | P | 276 | 8.7801 | 93 | 0.07 | 75 |
IV.HSRS.HHZ. | 2021-10-04T12:59:04.56 | 0.1 | undecidable | manual | P | 145 | 7.6812 | 94 | 0.06 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.HAVL.HHN. | ML:1.6 | 0.00031470399999999996 | 0.3776 | AML | other | m | 2021-10-04T12:59:16.64 |
IV.HAVL.HHE. | ML:1.5 | 0.0002205 | 0.32 | AML | other | m | 2021-10-04T12:59:18.79 |