A magnitude ML 1.8 earthquake occured in region: 7 km E Ragusa (RG), on
and geographic coordinates (lat, lon) 36.9300, 14.8050 at 21 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 |
---|---|---|---|---|
Ragusa | RG | 7 | 73313 | 73313 |
Modica | RG | 9 | 54633 | 127946 |
Giarratana | RG | 13 | 3048 | 130994 |
Chiaramonte Gulfi | RG | 15 | 8238 | 139232 |
Palazzolo Acreide | SR | 17 | 8808 | 148040 |
Scicli | RG | 17 | 27077 | 175117 |
Comiso | RG | 18 | 30156 | 205273 |
Rosolini | SR | 18 | 21427 | 226700 |
Ispica | RG | 18 | 16061 | 242761 |
Monterosso Almo | RG | 18 | 3032 | 245793 |
Buscemi | SR | 19 | 1051 | 246844 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.8 | 2021-02-17 05:44:30 |
36.9297 | 14.805 | 21 | 2021-07-12 16:54:59 |
Bollettino Sismico Italiano INGV | 87380571 |
Reviewed Rev100 |
ML 1.8 | 2021-02-17 05:44:30 |
36.933 | 14.8023 | 15 | 2021-02-17 05:51:48 |
Sala Sismica INGV-Roma | 87231701 |
Field | Value |
---|---|
Time (UTC) | 2021-02-17 05:44:30 ± 0.11 |
Latitude | 36.9297 ± 0.0045 |
Longitude | 14.8050 ± 0.0045 |
Depth (km) | 21 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 87380571 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 540 |
Semi-minor axis of confidence ellipse (meter) | 54 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 350 |
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) | 94 |
Number of associated phases, regardless of their use for origin computation | 24 |
Number of defining phases | 23 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.21 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.45865 |
Number of stations at which the event was observed | 13 |
Number of stations from which data was used for origin computation | 12 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 87380571 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-06-09 08:58:25 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 87231701 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-17 05:51:48 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ESCV.HHZ. | 2021-02-17T05:44:56.19 | 3.0 | undecidable | manual | S | -2.16 | 0 | |||
IV.HAGA.HHZ. | 2021-02-17T05:44:46.00 | 0.3 | undecidable | manual | S | 38 | 50.1165 | 105 | -0.21 | 67 |
IV.HLNI.HHZ. | 2021-02-17T05:44:45.04 | 0.3 | undecidable | manual | S | 7 | 46.8198 | 106 | -0.32 | 66 |
IV.HCRL.HHZ. | 2021-02-17T05:44:44.96 | 0.3 | undecidable | manual | S | 27 | 44.1225 | 107 | 0.31 | 67 |
IV.HSRS.HNN. | 2021-02-17T05:44:43.89 | 0.6 | undecidable | manual | S | 64 | 41.1255 | 109 | -0.01 | 47 |
IV.SSY.HHZ. | 2021-02-17T05:44:42.77 | 0.3 | undecidable | manual | S | 43 | 34.743 | 113 | 0.47 | 66 |
IV.ACATE.EHZ. | 2021-02-17T05:44:41.15 | 0.3 | undecidable | manual | S | 291 | 28.9488 | 118 | 0.25 | 68 |
IV.CROCE.HHZ. | 2021-02-17T05:44:40.29 | 0.3 | undecidable | manual | S | 246 | 26.2515 | 121 | 0 | 72 |
IV.RAFF.HHZ. | 2021-02-17T05:44:40.08 | 0.3 | undecidable | manual | P | 310 | 50.9157 | 104 | 0.6 | 59 |
IV.HVZN.HHZ. | 2021-02-17T05:44:40.97 | 0.3 | undecidable | manual | S | 344 | 28.6491 | 118 | 0.12 | 71 |
IV.HAVL.HHZ. | 2021-02-17T05:44:40.78 | 0.3 | undecidable | manual | S | 83 | 28.3494 | 118 | 0.03 | 72 |
IV.HAGA.HHZ. | 2021-02-17T05:44:39.64 | 0.3 | undecidable | manual | P | 38 | 50.1165 | 105 | 0.27 | 66 |
IV.HSRS.HNN. | 2021-02-17T05:44:38.00 | 0.3 | undecidable | manual | P | 64 | 41.1255 | 109 | -0.04 | 70 |
IV.HCRL.HHZ. | 2021-02-17T05:44:38.41 | 0.3 | undecidable | manual | P | 27 | 44.1225 | 107 | -0.06 | 70 |
IV.ISPIC.EHZ. | 2021-02-17T05:44:38.88 | 0.6 | undecidable | manual | S | 152 | 18.6702 | 132 | 0.23 | 47 |
IV.HLNI.HHZ. | 2021-02-17T05:44:38.60 | 0.3 | undecidable | manual | P | 7 | 46.8198 | 106 | -0.28 | 67 |
IV.SSY.HHZ. | 2021-02-17T05:44:37.20 | 0.1 | undecidable | manual | P | 43 | 34.743 | 113 | 0.08 | 95 |
IV.HMDC.HNN. | 2021-02-17T05:44:36.46 | 0.3 | undecidable | manual | S | 329 | 3.7962 | 168 | -0.14 | 73 |
IV.HAVL.HHZ. | 2021-02-17T05:44:36.11 | 0.3 | undecidable | manual | P | 83 | 28.3494 | 118 | -0.11 | 71 |
IV.HVZN.HHZ. | 2021-02-17T05:44:36.04 | 0.3 | undecidable | manual | P | 344 | 28.6491 | 118 | -0.24 | 70 |
IV.ACATE.EHZ. | 2021-02-17T05:44:35.93 | 0.6 | undecidable | manual | P | 291 | 28.9488 | 118 | -0.38 | 45 |
IV.CROCE.HHZ. | 2021-02-17T05:44:35.77 | 0.1 | undecidable | manual | P | 246 | 26.2515 | 121 | -0.18 | 95 |
IV.ISPIC.EHZ. | 2021-02-17T05:44:34.99 | 0.6 | undecidable | manual | P | 152 | 18.6702 | 132 | -0.02 | 49 |
IV.HMDC.HNN. | 2021-02-17T05:44:33.75 | 0.1 | undecidable | manual | P | 329 | 3.7962 | 168 | -0.07 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.HAVL.HHE. | ML:1.8 | 0.0002415 | 0.4 | AML | other | m | 2021-02-17T05:44:41.42 |
IV.HAVL.HHN. | ML:1.7 | 0.00020150000000000002 | 1.22 | AML | other | m | 2021-02-17T05:44:42.82 |
IV.SSY.HHE. | ML:2.2 | 0.0005605 | 0.3 | AML | other | m | 2021-02-17T05:44:42.83 |
IV.SSY.HHN. | ML:2.3 | 0.0007605 | 1.28 | AML | other | m | 2021-02-17T05:44:43.01 |
IV.HCRL.HHE. | ML:2.0 | 0.000268 | 0.14 | AML | other | m | 2021-02-17T05:44:45.12 |
IV.HLNI.HHE. | ML:1.5 | 0.00009090000000000001 | 0.88 | AML | other | m | 2021-02-17T05:44:46.21 |
IV.HCRL.HHN. | ML:1.7 | 0.00014435 | 0.2 | AML | other | m | 2021-02-17T05:44:46.71 |
IV.HLNI.HHN. | ML:1.5 | 0.00008494999999999999 | 0.42 | AML | other | m | 2021-02-17T05:44:46.82 |