A magnitude ML 1.2 earthquake occured in region: 5 km SE Niscemi (CL), on
and geographic coordinates (lat, lon) 37.1020, 14.4120 at 23 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 |
---|---|---|---|---|
Niscemi | CL | 6 | 27558 | 27558 |
Acate | RG | 11 | 10954 | 38512 |
Mazzarrone | CT | 13 | 4078 | 42590 |
Gela | CL | 15 | 75827 | 118417 |
Caltagirone | CT | 18 | 38686 | 157103 |
San Michele di Ganzaria | CT | 20 | 3245 | 160348 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.2 | 2021-08-13 14:46:56 |
37.1022 | 14.4125 | 23 | 2021-12-29 11:12:52 |
Bollettino Sismico Italiano INGV | 97516521 |
Reviewed Rev100 |
ML 1.1 | 2021-08-13 14:46:56 |
37.1153 | 14.4262 | 18 | 2021-08-13 14:55:24 |
Sala Sismica INGV-Roma | 94086451 |
Field | Value |
---|---|
Time (UTC) | 2021-08-13 14:46:56 ± 0.41 |
Latitude | 37.1022 ± 0.0144 |
Longitude | 14.4125 ± 0.0180 |
Depth (km) | 23 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 97516521 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1630 |
Semi-minor axis of confidence ellipse (meter) | 1236 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 140 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1630.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 201 |
Number of associated phases, regardless of their use for origin computation | 11 |
Number of defining phases | 11 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.34 |
Epicentral distance of station closest to the epicenter (degree) | 0.12680 |
Epicentral distance of station farthest from the epicenter (degree) | 0.58366 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.3 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 97516521 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-11-17 11:17:26 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.3 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 94086451 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-13 14:55:24 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.HAVL.HHZ. | 2021-08-13T14:47:16.36 | 0.3 | undecidable | manual | S | 104 | 64.7907 | 103 | 0.17 | 70 |
IV.SSY.HHZ. | 2021-08-13T14:47:15.16 | 0.3 | undecidable | manual | S | 84 | 58.7967 | 105 | 0.52 | 66 |
IV.HLNI.HHZ. | 2021-08-13T14:47:11.77 | 0.3 | undecidable | manual | S | 56 | 48.9177 | 108 | -0.35 | 68 |
IV.HAVL.HHZ. | 2021-08-13T14:47:08.03 | 0.3 | undecidable | manual | P | 104 | 64.7907 | 103 | 0.35 | 68 |
IV.HVZN.HHZ. | 2021-08-13T14:47:07.00 | 0.3 | undecidable | manual | S | 72 | 28.0497 | 123 | -0.07 | 75 |
IV.SSY.HHZ. | 2021-08-13T14:47:06.63 | 0.1 | undecidable | manual | P | 84 | 58.7967 | 105 | -0.16 | 93 |
IV.HVIT.HHZ. | 2021-08-13T14:47:04.51 | 0.3 | undecidable | manual | S | 141 | 15.4734 | 142 | -0.07 | 77 |
IV.HLNI.HHZ. | 2021-08-13T14:47:04.90 | 0.1 | undecidable | manual | P | 56 | 48.9177 | 108 | -0.43 | 89 |
IV.HVZN.HHZ. | 2021-08-13T14:47:02.32 | 0.1 | undecidable | manual | P | 72 | 28.0497 | 123 | -0.1 | 99 |
IV.RAFF.HHZ. | 2021-08-13T14:47:01.48 | 0.3 | undecidable | manual | P | 342 | 14.0748 | 145 | 0.63 | 68 |
IV.HVIT.HHZ. | 2021-08-13T14:47:00.82 | 0.1 | undecidable | manual | P | 141 | 15.4734 | 142 | -0.16 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.HVIT.HHN. | ML:1.5 | 0.000163 | 0.12 | AML | other | m | 2021-08-13T14:47:04.64 |
IV.HVIT.HHE. | ML:1.4 | 0.0001257066 | 0.1408 | AML | other | m | 2021-08-13T14:47:04.60 |
IV.RAFF.HHN. | ML:0.6 | 0.000027317075 | 0.3648 | AML | other | m | 2021-08-13T14:47:06.45 |
IV.RAFF.HHE. | ML:0.7 | 0.000028666699999999998 | 0.16 | AML | other | m | 2021-08-13T14:47:06.66 |
IV.HVZN.HNN. | ML:1.3 | 0.0000772138475 | 0.3712 | AML | other | m | 2021-08-13T14:47:07.61 |
IV.HVZN.HNE. | ML:1.1 | 0.000055465815 | 0.4288 | AML | other | m | 2021-08-13T14:47:08.83 |
IV.HVZN.HHE. | ML:1.0 | 0.000044795299999999994 | 0.2368 | AML | other | m | 2021-08-13T14:47:09.48 |
IV.HVZN.HHN. | ML:1.0 | 0.0000456940625 | 0.2624 | AML | other | m | 2021-08-13T14:47:10.04 |
IV.CPTP.HHN. | ML:1.1 | 0.000035914874999999996 | 0.32 | AML | other | m | 2021-08-13T14:47:10.78 |
IV.CPTP.HHE. | ML:1.3 | 0.000062332475 | 1.456 | AML | other | m | 2021-08-13T14:47:11.06 |
IV.HLNI.HHE. | ML:0.9 | 0.00002045 | 1.86 | AML | other | m | 2021-08-13T14:47:11.99 |
IV.HLNI.HHN. | ML:1.1 | 0.000030100000000000003 | 0.12 | AML | other | m | 2021-08-13T14:47:12.07 |
IV.SSY.HHN. | ML:2.0 | 0.000184842 | 0.3584 | AML | other | m | 2021-08-13T14:47:15.44 |
IV.HAVL.HHE. | ML:1.4 | 0.000045969394999999994 | 0.16 | AML | other | m | 2021-08-13T14:47:16.49 |
IV.HAVL.HHN. | ML:1.5 | 0.000052981845 | 0.3008 | AML | other | m | 2021-08-13T14:47:16.50 |
IV.SSY.HHE. | ML:1.8 | 0.0001138619 | 0.4032 | AML | other | m | 2021-08-13T14:47:16.00 |