A magnitude ML 1.7 earthquake occured in region: 7 km E Ragusa (RG), on
and geographic coordinates (lat, lon) 36.9260, 14.8070 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 | 8 | 54633 | 127946 |
Giarratana | RG | 14 | 3048 | 130994 |
Chiaramonte Gulfi | RG | 15 | 8238 | 139232 |
Scicli | RG | 17 | 27077 | 166309 |
Rosolini | SR | 18 | 21427 | 187736 |
Palazzolo Acreide | SR | 18 | 8808 | 196544 |
Ispica | RG | 18 | 16061 | 212605 |
Comiso | RG | 18 | 30156 | 242761 |
Monterosso Almo | RG | 19 | 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 1.7 | 2021-02-17 06:14:45 |
36.9258 | 14.8068 | 21 | 2021-07-12 16:54:59 |
Bollettino Sismico Italiano INGV | 87380751 |
Reviewed Rev100 |
ML 1.7 | 2021-02-17 06:14:45 |
36.9143 | 14.7913 | 23 | 2021-02-17 06:23:35 |
Sala Sismica INGV-Roma | 87232041 |
Field | Value |
---|---|
Time (UTC) | 2021-02-17 06:14:45 ± 0.12 |
Latitude | 36.9258 ± 0.0063 |
Longitude | 14.8068 ± 0.0067 |
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 | 87380751 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 721 |
Semi-minor axis of confidence ellipse (meter) | 307 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 314 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 720.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 95 |
Number of associated phases, regardless of their use for origin computation | 21 |
Number of defining phases | 21 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.22 |
Epicentral distance of station closest to the epicenter (degree) | 0.03777 |
Epicentral distance of station farthest from the epicenter (degree) | 0.46225 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.3 |
Num. used stations | 19 |
Type of magnitude | ML |
Reference to an origin | 87232041 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-17 06:23:35 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.2 |
Num. used stations | 19 |
Type of magnitude | ML |
Reference to an origin | 87380751 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-06-09 13:08:16 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.HAGA.HHZ. | 2021-02-17T06:15:02.13 | 0.3 | undecidable | manual | S | 38 | 50.3163 | 105 | -0.09 | 71 |
IV.HLNI.HHZ. | 2021-02-17T06:15:01.45 | 0.6 | undecidable | manual | S | 7 | 47.2194 | 106 | 0.03 | 47 |
IV.HCRL.HHZ. | 2021-02-17T06:15:00.94 | 0.6 | undecidable | manual | S | 27 | 44.4222 | 108 | 0.25 | 45 |
IV.HSRS.HNZ. | 2021-02-17T06:14:59.83 | 0.6 | undecidable | manual | S | 63 | 41.1255 | 109 | -0.05 | 48 |
IV.SSY.HHZ. | 2021-02-17T06:14:58.70 | 0.3 | undecidable | manual | S | 42 | 34.9428 | 113 | 0.37 | 68 |
IV.HVZN.HHZ. | 2021-02-17T06:14:56.84 | 0.3 | undecidable | manual | S | 344 | 29.1486 | 119 | -0.1 | 74 |
IV.HAVL.HHZ. | 2021-02-17T06:14:56.72 | 0.6 | undecidable | manual | S | 82 | 28.1496 | 120 | 0 | 49 |
IV.CROCE.HHZ. | 2021-02-17T06:14:56.21 | 0.6 | undecidable | manual | S | 247 | 26.2515 | 122 | -0.07 | 49 |
IV.RAFF.HHZ. | 2021-02-17T06:14:56.27 | 0.3 | undecidable | manual | P | 310 | 51.3153 | 105 | 0.78 | 57 |
IV.HAGA.HHZ. | 2021-02-17T06:14:54.97 | 0.3 | undecidable | manual | P | 38 | 50.3163 | 105 | -0.38 | 66 |
IV.ISPIC.HNZ. | 2021-02-17T06:14:54.89 | 0.6 | undecidable | manual | S | 152 | 18.2706 | 134 | 0.31 | 49 |
IV.HCRL.HHZ. | 2021-02-17T06:14:54.40 | 0.1 | undecidable | manual | P | 27 | 44.4222 | 108 | -0.06 | 96 |
IV.HLNI.HHZ. | 2021-02-17T06:14:54.54 | 0.3 | undecidable | manual | P | 7 | 47.2194 | 106 | -0.35 | 68 |
IV.HSRS.HNZ. | 2021-02-17T06:14:53.95 | 0.6 | undecidable | manual | P | 63 | 41.1255 | 109 | -0.05 | 48 |
IV.SSY.HHZ. | 2021-02-17T06:14:53.19 | 0.1 | undecidable | manual | P | 42 | 34.9428 | 113 | 0.09 | 96 |
IV.HMDC.HHZ. | 2021-02-17T06:14:52.55 | 0.6 | undecidable | manual | S | 330 | 4.1958 | 167 | -0.13 | 50 |
IV.HAVL.HHZ. | 2021-02-17T06:14:52.11 | 0.3 | undecidable | manual | P | 82 | 28.1496 | 120 | -0.06 | 73 |
IV.HVZN.HHZ. | 2021-02-17T06:14:52.04 | 0.6 | undecidable | manual | P | 344 | 29.1486 | 119 | -0.26 | 47 |
IV.ISPIC.HNZ. | 2021-02-17T06:14:51.31 | 0.6 | undecidable | manual | P | 152 | 18.2706 | 134 | 0.38 | 47 |
IV.CROCE.HHZ. | 2021-02-17T06:14:51.84 | 0.1 | undecidable | manual | P | 247 | 26.2515 | 122 | -0.08 | 97 |
IV.HMDC.HHZ. | 2021-02-17T06:14:49.69 | 0.1 | undecidable | manual | P | 330 | 4.1958 | 167 | -0.15 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.HMDC.HHN. | ML:1.9 | 0.0005729999999999999 | 0.34 | AML | other | m | 2021-02-17T06:14:52.85 |
IV.HMDC.HNN. | ML:1.8 | 0.000531 | 0.36 | AML | other | m | 2021-02-17T06:14:52.86 |
IV.HMDC.HNE. | ML:1.6 | 0.000309 | 0.4 | AML | other | m | 2021-02-17T06:14:52.87 |
IV.HMDC.HHE. | ML:1.4 | 0.00021720455 | 0.0608 | AML | other | m | 2021-02-17T06:14:53.34 |
IV.CROCE.HHE. | ML:1.5 | 0.00013900000000000002 | 0.34 | AML | other | m | 2021-02-17T06:14:56.43 |
IV.CROCE.HHN. | ML:1.7 | 0.00020400000000000003 | 0.1 | AML | other | m | 2021-02-17T06:14:56.51 |
IV.CROCE.HNN. | ML:1.7 | 0.00023516139999999998 | 0.0992 | AML | other | m | 2021-02-17T06:14:56.51 |
IV.CROCE.HNE. | ML:1.5 | 0.00013364985000000003 | 0.6784 | AML | other | m | 2021-02-17T06:14:57.09 |
IV.SSY.HHE. | ML:2.3 | 0.000725 | 0.28 | AML | other | m | 2021-02-17T06:14:58.95 |
IV.HVZN.HHE. | ML:1.8 | 0.00028463450000000003 | 0.4 | AML | other | m | 2021-02-17T06:14:58.85 |
IV.HVZN.HNE. | ML:1.8 | 0.00027823524999999997 | 0.4 | AML | other | m | 2021-02-17T06:14:58.86 |
IV.HVZN.HHN. | ML:1.5 | 0.00014025114999999998 | 0.2816 | AML | other | m | 2021-02-17T06:14:59.23 |
IV.SSY.HHN. | ML:2.3 | 0.0007255 | 0.66 | AML | other | m | 2021-02-17T06:14:59.32 |
IV.HCRL.HHN. | ML:2.0 | 0.0002505 | 0.94 | AML | other | m | 2021-02-17T06:15:02.68 |
IV.HCRL.HHE. | ML:2.0 | 0.000243 | 0.16 | AML | other | m | 2021-02-17T06:15:02.79 |
IV.HAGA.HHN. | ML:1.4 | 0.00006526125500000001 | 0.1216 | AML | other | m | 2021-02-17T06:15:03.38 |
IV.HLNI.HHE. | ML:1.9 | 0.000211 | 0.12 | AML | other | m | 2021-02-17T06:15:03.72 |
IV.HAGA.HHE. | ML:1.4 | 0.00005334047 | 0.08 | AML | other | m | 2021-02-17T06:15:03.78 |
IV.HLNI.HHN. | ML:1.6 | 0.00008774999999999999 | 0.56 | AML | other | m | 2021-02-17T06:15:03.52 |