A magnitude ML 1.7 earthquake occured in region: 8 km NW Chiaramonte Gulfi (RG), on
and geographic coordinates (lat, lon) 37.0910, 14.6530 at 19 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 |
---|---|---|---|---|
Chiaramonte Gulfi | RG | 8 | 8238 | 8238 |
Mazzarrone | CT | 8 | 4078 | 12316 |
Licodia Eubea | CT | 9 | 3081 | 15397 |
Monterosso Almo | RG | 10 | 3032 | 18429 |
Vizzini | CT | 12 | 6241 | 24670 |
Giarratana | RG | 13 | 3048 | 27718 |
Grammichele | CT | 14 | 13418 | 41136 |
Acate | RG | 16 | 10954 | 52090 |
Comiso | RG | 17 | 30156 | 82246 |
Buccheri | SR | 18 | 1999 | 84245 |
Vittoria | RG | 19 | 63339 | 147584 |
Ragusa | RG | 20 | 73313 | 220897 |
Mineo | CT | 20 | 5159 | 226056 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.7 | 2021-12-31 09:29:24 |
37.0912 | 14.6527 | 19 | 2022-03-30 13:04:31 |
Bollettino Sismico Italiano INGV | 99884711 |
Reviewed Rev100 |
ML 1.7 | 2021-12-31 09:29:24 |
37.093 | 14.6458 | 20 | 2021-12-31 09:39:06 |
Sala Sismica INGV-Roma | 99188741 |
Field | Value |
---|---|
Time (UTC) | 2021-12-31 09:29:24 ± 0.19 |
Latitude | 37.0912 ± 0.0072 |
Longitude | 14.6527 ± 0.0090 |
Depth (km) | 19 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 99884711 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 931 |
Semi-minor axis of confidence ellipse (meter) | 228 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 130 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 930.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 73 |
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) | 0.29 |
Epicentral distance of station closest to the epicenter (degree) | 0.10072 |
Epicentral distance of station farthest from the epicenter (degree) | 0.62323 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.1 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 99884711 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-01-17 16:30:47 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.1 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 99188741 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-12-31 09:39:06 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.GALF.HHZ. | 2021-12-31T09:29:37.37 | 1.0 | undecidable | manual | P | 354 | 69.1752 | 98 | 0.34 | 22 |
IV.SSY.HHZ. | 2021-12-31T09:29:37.77 | 1.0 | undecidable | manual | S | 79 | 37.9287 | 107 | -0.02 | 24 |
IV.RAFF.HHZ. | 2021-12-31T09:29:36.44 | 0.3 | undecidable | manual | S | 300 | 29.5482 | 113 | 0.77 | 59 |
IV.CROCE.HHZ. | 2021-12-31T09:29:36.14 | 0.3 | undecidable | manual | S | 200 | 30.5472 | 113 | 0.22 | 72 |
IV.HLNI.HHZ. | 2021-12-31T09:29:36.77 | 0.3 | undecidable | manual | S | 34 | 34.5432 | 109 | -0.14 | 73 |
IV.HAGA.HHE. | 2021-12-31T09:29:34.29 | 0.6 | undecidable | manual | P | 64 | 49.3173 | 102 | 0.27 | 46 |
IV.HMDC.HHZ. | 2021-12-31T09:29:33.47 | 0.3 | undecidable | manual | S | 142 | 18.6702 | 128 | 0.3 | 73 |
IV.ISPIC.EHZ. | 2021-12-31T09:29:32.84 | 0.3 | undecidable | manual | P | 147 | 41.0256 | 106 | 0.06 | 73 |
IV.SSY.HHZ. | 2021-12-31T09:29:32.68 | 0.6 | negative | manual | P | 79 | 37.9287 | 107 | 0.35 | 46 |
IV.HVZN.HHZ. | 2021-12-31T09:29:32.06 | 0.3 | undecidable | manual | S | 30 | 11.1777 | 145 | 0.28 | 73 |
IV.HVIT.HHZ. | 2021-12-31T09:29:32.29 | 0.3 | undecidable | manual | S | 227 | 15.9729 | 133 | -0.33 | 72 |
IV.CROCE.HHZ. | 2021-12-31T09:29:31.13 | 0.3 | undecidable | manual | P | 200 | 30.5472 | 113 | -0.12 | 73 |
IV.HLNI.HHZ. | 2021-12-31T09:29:31.40 | 0.1 | undecidable | manual | P | 34 | 34.5432 | 109 | -0.42 | 91 |
IV.RAFF.HHZ. | 2021-12-31T09:29:30.90 | 0.1 | undecidable | manual | P | 300 | 29.5482 | 113 | -0.2 | 97 |
IV.HMDC.HHZ. | 2021-12-31T09:29:29.83 | 0.1 | undecidable | manual | P | 142 | 18.6702 | 128 | 0.17 | 99 |
IV.HVZN.HHZ. | 2021-12-31T09:29:28.68 | 0.1 | positive | manual | P | 30 | 11.1777 | 145 | -0.18 | 100 |
IV.HVIT.HHZ. | 2021-12-31T09:29:28.92 | 0.1 | positive | manual | P | 227 | 15.9729 | 133 | -0.42 | 94 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.HVZN.HHE. | ML:1.7 | 0.00035450000000000005 | 0.14 | AML | other | m | 2021-12-31T09:29:32.18 |
IV.HVZN.HHN. | ML:1.7 | 0.0003895 | 0.68 | AML | other | m | 2021-12-31T09:29:32.16 |
IV.HVIT.HHN. | ML:1.8 | 0.000381 | 0.24 | AML | other | m | 2021-12-31T09:29:32.80 |
IV.HVIT.HHE. | ML:1.7 | 0.0003305 | 0.5 | AML | other | m | 2021-12-31T09:29:33.36 |
IV.HMDC.HNE. | ML:1.6 | 0.000248671185 | 1.808 | AML | other | m | 2021-12-31T09:29:33.05 |
IV.HMDC.HHN. | ML:1.8 | 0.000338 | 1.64 | AML | other | m | 2021-12-31T09:29:34.13 |
IV.HMDC.HNN. | ML:1.6 | 0.00024216444999999997 | 1.648 | AML | other | m | 2021-12-31T09:29:34.96 |
IV.HMDC.HHE. | ML:1.8 | 0.00040149999999999995 | 1.56 | AML | other | m | 2021-12-31T09:29:34.04 |
IV.RAFF.HHE. | ML:1.7 | 0.000199 | 0.42 | AML | other | m | 2021-12-31T09:29:35.61 |
IV.CROCE.HHE. | ML:1.5 | 0.000122401055 | 0.2624 | AML | other | m | 2021-12-31T09:29:36.37 |
IV.CROCE.HNN. | ML:1.7 | 0.00021880865 | 0.4672 | AML | other | m | 2021-12-31T09:29:36.44 |
IV.CROCE.HHN. | ML:1.7 | 0.0001955 | 0.58 | AML | other | m | 2021-12-31T09:29:36.45 |
IV.CROCE.HNE. | ML:1.6 | 0.000150413085 | 0.1024 | AML | other | m | 2021-12-31T09:29:36.42 |
IV.RAFF.HHN. | ML:1.7 | 0.00020649999999999998 | 0.38 | AML | other | m | 2021-12-31T09:29:36.59 |