A magnitude ML 1.6 earthquake occured in region: 5 km NW Ragusa (RG), on
and geographic coordinates (lat, lon) 36.9530, 14.6840 at 16 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 | 5 | 73313 | 73313 |
Comiso | RG | 7 | 30156 | 103469 |
Chiaramonte Gulfi | RG | 9 | 8238 | 111707 |
Modica | RG | 12 | 54633 | 166340 |
Vittoria | RG | 13 | 63339 | 229679 |
Giarratana | RG | 15 | 3048 | 232727 |
Monterosso Almo | RG | 17 | 3032 | 235759 |
Scicli | RG | 18 | 27077 | 262836 |
Mazzarrone | CT | 18 | 4078 | 266914 |
Acate | RG | 19 | 10954 | 277868 |
Santa Croce Camerina | RG | 20 | 10823 | 288691 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.6 | 2021-08-30 19:42:26 |
36.9527 | 14.684 | 16 | 2021-12-29 11:12:31 |
Bollettino Sismico Italiano INGV | 95655771 |
Reviewed Rev100 |
ML 1.6 | 2021-08-30 19:42:26 |
36.9477 | 14.6797 | 18 | 2021-08-30 19:49:00 |
Sala Sismica INGV-Roma | 94832081 |
Field | Value |
---|---|
Time (UTC) | 2021-08-30 19:42:26 ± 0.11 |
Latitude | 36.9527 ± 0.0045 |
Longitude | 14.6840 ± 0.0056 |
Depth (km) | 16 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 95655771 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 444 |
Semi-minor axis of confidence ellipse (meter) | 335 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 39 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 440.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 153 |
Number of associated phases, regardless of their use for origin computation | 22 |
Number of defining phases | 22 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.19 |
Epicentral distance of station closest to the epicenter (degree) | 0.07914 |
Epicentral distance of station farthest from the epicenter (degree) | 0.50092 |
Number of stations at which the event was observed | 13 |
Number of stations from which data was used for origin computation | 13 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.2 |
Num. used stations | 18 |
Type of magnitude | ML |
Reference to an origin | 94832081 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-30 19:49:00 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 26 |
Type of magnitude | ML |
Reference to an origin | 95655771 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-12-17 14:05:18 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.HAGA.HHZ. | 2021-08-30T19:42:44.39 | 0.6 | undecidable | manual | S | 48 | 55.5999 | 97 | 0.36 | 45 |
IV.HLNI.HHZ. | 2021-08-30T19:42:41.87 | 0.6 | undecidable | manual | S | 21 | 46.9197 | 98 | 0.14 | 48 |
IV.SSY.HHZ. | 2021-08-30T19:42:40.56 | 0.3 | undecidable | manual | S | 56 | 41.3253 | 100 | 0.32 | 69 |
IV.HAVL.HHZ. | 2021-08-30T19:42:39.41 | 0.3 | undecidable | manual | S | 89 | 38.8278 | 101 | -0.19 | 74 |
IV.ISPIC.EHZ. | 2021-08-30T19:42:36.81 | 0.6 | undecidable | manual | S | 134 | 27.2505 | 108 | 0.22 | 49 |
IV.HAGA.HHZ. | 2021-08-30T19:42:36.54 | 0.3 | undecidable | manual | P | 48 | 55.5999 | 97 | -0.14 | 72 |
IV.HVZN.HHZ. | 2021-08-30T19:42:36.07 | 0.6 | undecidable | manual | S | 6 | 25.1526 | 110 | 0 | 51 |
IV.HLNI.HHZ. | 2021-08-30T19:42:35.09 | 0.1 | undecidable | manual | P | 21 | 46.9197 | 98 | -0.26 | 95 |
IV.HSRS.HHZ. | 2021-08-30T19:42:35.69 | 0.3 | undecidable | manual | P | 72 | 50.1165 | 98 | -0.15 | 73 |
IT.LNT.HGE. | 2021-08-30T19:42:35.25 | 0.3 | undecidable | manual | P | 37 | 46.7199 | 98 | -0.06 | 74 |
IV.SSY.HHZ. | 2021-08-30T19:42:34.56 | 0.3 | undecidable | manual | P | 56 | 41.3253 | 100 | 0.07 | 74 |
IV.HPAC.HHE. | 2021-08-30T19:42:34.70 | 0.3 | undecidable | manual | P | 131 | 41.4252 | 100 | 0.19 | 72 |
IV.ACATE.HNZ. | 2021-08-30T19:42:34.50 | 0.6 | undecidable | manual | S | 296 | 18.0708 | 121 | 0.15 | 51 |
IV.RAFF.HHZ. | 2021-08-30T19:42:34.88 | 0.3 | undecidable | manual | P | 317 | 41.3253 | 100 | 0.39 | 70 |
IV.HVIT.HHZ. | 2021-08-30T19:42:33.52 | 0.6 | undecidable | manual | S | 287 | 15.0738 | 127 | -0.16 | 50 |
IV.HAVL.HHZ. | 2021-08-30T19:42:33.93 | 0.3 | undecidable | manual | P | 89 | 38.8278 | 101 | -0.19 | 73 |
IV.HMDC.HHZ. | 2021-08-30T19:42:32.71 | 0.6 | undecidable | manual | S | 85 | 8.7801 | 145 | 0.18 | 51 |
IV.ISPIC.EHZ. | 2021-08-30T19:42:32.24 | 0.1 | undecidable | manual | P | 134 | 27.2505 | 108 | -0.15 | 100 |
IV.ACATE.HNZ. | 2021-08-30T19:42:31.41 | 0.3 | undecidable | manual | P | 296 | 18.0708 | 121 | 0.31 | 74 |
IV.HVZN.HHZ. | 2021-08-30T19:42:31.88 | 0.3 | undecidable | manual | P | 6 | 25.1526 | 110 | -0.2 | 75 |
IV.HVIT.HHZ. | 2021-08-30T19:42:30.42 | 0.1 | undecidable | manual | P | 287 | 15.0738 | 127 | -0.29 | 99 |
IV.HMDC.HHZ. | 2021-08-30T19:42:29.98 | 0.3 | undecidable | manual | P | 85 | 8.7801 | 145 | -0.06 | 79 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.HMDC.HHE. | ML:1.4 | 0.00025187705 | 0.064 | AML | other | m | 2021-08-30T19:42:32.86 |
IV.HMDC.HNN. | ML:1.7 | 0.0004297981 | 0.1536 | AML | other | m | 2021-08-30T19:42:32.80 |
IV.HMDC.HHN. | ML:1.7 | 0.0005235 | 0.18 | AML | other | m | 2021-08-30T19:42:32.79 |
IV.HVIT.HHE. | ML:2.1 | 0.000901 | 0.08 | AML | other | m | 2021-08-30T19:42:33.58 |
IV.HVIT.HHN. | ML:1.9 | 0.000621 | 0.08 | AML | other | m | 2021-08-30T19:42:33.59 |
IV.HMDC.HNE. | ML:1.3 | 0.0001944061 | 0.1408 | AML | other | m | 2021-08-30T19:42:33.63 |
IV.HVZN.HNE. | ML:1.2 | 0.000074365605 | 0.896 | AML | other | m | 2021-08-30T19:42:36.15 |
IV.HVZN.HNN. | ML:1.5 | 0.00016227790000000001 | 1.2672 | AML | other | m | 2021-08-30T19:42:36.70 |
IV.HVZN.HHE. | ML:1.4 | 0.00012727489999999998 | 0.7808 | AML | other | m | 2021-08-30T19:42:36.54 |
IV.HVZN.HHN. | ML:1.2 | 0.00008599771 | 1.024 | AML | other | m | 2021-08-30T19:42:36.24 |
IV.ISPIC.HNN. | ML:1.6 | 0.0001779955 | 0.2048 | AML | other | m | 2021-08-30T19:42:36.87 |
IV.ISPIC.EHN. | ML:1.5 | 0.00014616606000000001 | 0.192 | AML | other | m | 2021-08-30T19:42:36.88 |
IV.ISPIC.HNE. | ML:1.7 | 0.000245510345 | 1.6928 | AML | other | m | 2021-08-30T19:42:37.02 |
IV.ISPIC.EHE. | ML:1.6 | 0.00018575000000000002 | 1.72 | AML | other | m | 2021-08-30T19:42:37.88 |
IV.HAVL.HHE. | ML:1.8 | 0.0002184096 | 0.1408 | AML | other | m | 2021-08-30T19:42:40.40 |
IV.SSY.HHE. | ML:1.6 | 0.0001274243 | 0.6784 | AML | other | m | 2021-08-30T19:42:40.36 |
IV.HAVL.HHN. | ML:2.0 | 0.0003033301 | 0.192 | AML | other | m | 2021-08-30T19:42:40.71 |
IV.SSY.HHN. | ML:1.9 | 0.00024986835 | 1.6128 | AML | other | m | 2021-08-30T19:42:40.09 |
IV.HLNI.HHE. | ML:2.0 | 0.000245 | 0.12 | AML | other | m | 2021-08-30T19:42:42.16 |
IV.RAFF.HHE. | ML:1.2 | 0.000044223280000000006 | 0.3584 | AML | other | m | 2021-08-30T19:42:42.57 |
IV.HLNI.HHN. | ML:1.6 | 0.00012071835 | 0.0768 | AML | other | m | 2021-08-30T19:42:42.54 |
IV.RAFF.HHN. | ML:1.2 | 0.000045236110000000006 | 0.384 | AML | other | m | 2021-08-30T19:42:43.99 |
IV.HSRS.HHE. | ML:1.3 | 0.00004934571 | 3.3792 | AML | other | m | 2021-08-30T19:42:43.21 |
IV.HAGA.HHN. | ML:1.6 | 0.0000814952 | 1.7952 | AML | other | m | 2021-08-30T19:42:46.99 |
IV.HAGA.HHE. | ML:1.7 | 0.000118 | 1.78 | AML | other | m | 2021-08-30T19:42:46.10 |
IV.HSRS.HHN. | ML:1.3 | 0.000050374635 | 1.4592 | AML | other | m | 2021-08-30T19:42:45.88 |