A magnitude ML 1.8 earthquake occured in region: 5 km S Canicattini Bagni (SR), on
and geographic coordinates (lat, lon) 36.9910, 15.0710 at 29 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 |
---|---|---|---|---|
Canicattini Bagni | SR | 5 | 7109 | 7109 |
Avola | SR | 11 | 31708 | 38817 |
Noto | SR | 11 | 23913 | 62730 |
Floridia | SR | 13 | 22762 | 85492 |
Solarino | SR | 13 | 8091 | 93583 |
Cassaro | SR | 17 | 821 | 94404 |
Palazzolo Acreide | SR | 17 | 8808 | 103212 |
Ferla | SR | 18 | 2523 | 105735 |
Sortino | SR | 20 | 8690 | 114425 |
Buscemi | SR | 20 | 1051 | 115476 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.8 | 2021-04-21 04:21:18 |
36.991 | 15.071 | 29 | 2021-07-12 16:55:09 |
Bollettino Sismico Italiano INGV | 89765471 |
Reviewed Rev100 |
ML 1.9 | 2021-04-21 04:21:18 |
36.9908 | 15.0732 | 26 | 2021-04-21 04:27:58 |
Sala Sismica INGV-Roma | 89317051 |
Field | Value |
---|---|
Time (UTC) | 2021-04-21 04:21:18 ± 0.21 |
Latitude | 36.9910 ± 0.0045 |
Longitude | 15.0710 ± 0.0101 |
Depth (km) | 29 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 89765471 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 617 |
Semi-minor axis of confidence ellipse (meter) | 603 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 95 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 620.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 78 |
Number of associated phases, regardless of their use for origin computation | 30 |
Number of defining phases | 24 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.26 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.61064 |
Number of stations at which the event was observed | 17 |
Number of stations from which data was used for origin computation | 12 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.3 |
Num. used stations | 18 |
Type of magnitude | ML |
Reference to an origin | 89765471 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-06-18 15:44:24 |
Field | Value |
---|---|
Value | 1.9 |
Uncertainty | 0.2 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 89317051 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-21 04:27:58 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.TDS.HHZ. | 2021-04-21T04:22:44.71 | 3.0 | undecidable | manual | Sg | 8.78 | 0 | |||
IV.SELL.HHZ. | 2021-04-21T04:22:13.64 | 3.0 | undecidable | manual | Sg | 0 | ||||
IV.SELL.HHZ. | 2021-04-21T04:22:07.81 | 3.0 | undecidable | manual | Pg | 0 | ||||
IV.IFIL.HHZ. | 2021-04-21T04:22:03.47 | 3.0 | undecidable | manual | Sn | -2.26 | 0 | |||
IV.EPIT.HHZ. | 2021-04-21T04:21:45.87 | 3.0 | undecidable | manual | S | -0.4 | 0 | |||
IV.MSRU.HHZ. | 2021-04-21T04:21:42.36 | 3.0 | negative | manual | Pn | 1.27 | 0 | |||
IV.RAFF.HHE. | 2021-04-21T04:21:40.50 | 0.3 | undecidable | manual | S | 292 | 67.7766 | 108 | 0.75 | 57 |
IV.HVIT.HHZ. | 2021-04-21T04:21:35.00 | 0.3 | undecidable | manual | S | 270 | 48.7179 | 116 | -0.01 | 69 |
IV.HLNI.HHZ. | 2021-04-21T04:21:33.66 | 0.6 | undecidable | manual | S | 336 | 43.4232 | 119 | -0.1 | 46 |
IV.HVZN.HHZ. | 2021-04-21T04:21:32.96 | 0.6 | undecidable | manual | S | 304 | 37.7289 | 123 | 0.51 | 43 |
IV.HPAC.HHZ. | 2021-04-21T04:21:31.52 | 0.3 | undecidable | manual | S | 185 | 31.4463 | 128 | 0.41 | 66 |
IV.RAFF.HHE. | 2021-04-21T04:21:31.07 | 0.1 | undecidable | manual | P | 292 | 67.7766 | 108 | 0.34 | 85 |
IV.HAGA.HHZ. | 2021-04-21T04:21:31.22 | 0.6 | undecidable | manual | S | 13 | 33.4443 | 126 | -0.3 | 46 |
IV.HCRL.HHZ. | 2021-04-21T04:21:31.30 | 0.3 | undecidable | manual | S | 354 | 32.5452 | 127 | -0.04 | 72 |
IV.ISPIC.HNZ. | 2021-04-21T04:21:30.11 | 0.3 | undecidable | manual | S | 213 | 27.6501 | 132 | -0.22 | 69 |
IV.HMDC.HHZ. | 2021-04-21T04:21:29.38 | 0.3 | undecidable | manual | S | 262 | 25.752 | 135 | -0.58 | 63 |
IV.SSY.HHZ. | 2021-04-21T04:21:28.83 | 0.3 | undecidable | manual | S | 1 | 18.4704 | 145 | 0.13 | 72 |
IV.HSRS.HHE. | 2021-04-21T04:21:28.53 | 0.3 | undecidable | manual | S | 50 | 17.4714 | 146 | -0.02 | 73 |
IV.HVIT.HHZ. | 2021-04-21T04:21:27.85 | 0.3 | positive | manual | P | 270 | 48.7179 | 116 | -0.15 | 68 |
IV.HAVL.HHZ. | 2021-04-21T04:21:27.22 | 0.6 | undecidable | manual | S | 128 | 5.6943 | 168 | -0.09 | 50 |
IV.HAGA.HHZ. | 2021-04-21T04:21:26.04 | 0.3 | undecidable | manual | P | 13 | 33.4443 | 126 | 0.06 | 71 |
IV.HVZN.HHZ. | 2021-04-21T04:21:26.63 | 0.1 | undecidable | manual | P | 304 | 37.7289 | 123 | 0.11 | 94 |
IV.HLNI.HHZ. | 2021-04-21T04:21:26.92 | 0.1 | negative | manual | P | 336 | 43.4232 | 119 | -0.36 | 88 |
IV.HCRL.HHZ. | 2021-04-21T04:21:25.95 | 0.1 | undecidable | manual | P | 354 | 32.5452 | 127 | 0.07 | 95 |
IV.HPAC.HHZ. | 2021-04-21T04:21:25.93 | 0.1 | undecidable | manual | P | 185 | 31.4463 | 128 | 0.19 | 93 |
IV.HMDC.HHZ. | 2021-04-21T04:21:25.02 | 0.1 | positive | manual | P | 262 | 25.752 | 135 | -0.06 | 96 |
IV.HSRS.HHE. | 2021-04-21T04:21:24.26 | 0.1 | undecidable | manual | P | 50 | 17.4714 | 146 | -0.01 | 98 |
IV.SSY.HHZ. | 2021-04-21T04:21:24.44 | 1.0 | positive | manual | P | 1 | 18.4704 | 145 | 0.09 | 24 |
IV.ISPIC.HNZ. | 2021-04-21T04:21:24.75 | 0.1 | undecidable | manual | P | 213 | 27.6501 | 132 | -0.55 | 86 |
IV.HAVL.HHZ. | 2021-04-21T04:21:23.57 | 0.1 | undecidable | manual | P | 128 | 5.6943 | 168 | 0.02 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.HAVL.HHN. | ML:1.8 | 0.0003485 | 1.58 | AML | other | m | 2021-04-21T04:21:28.98 |
IV.HAVL.HHE. | ML:1.7 | 0.000263 | 0.52 | AML | other | m | 2021-04-21T04:21:28.98 |
IV.SSY.HHE. | ML:2.2 | 0.0006490000000000001 | 1.62 | AML | other | m | 2021-04-21T04:21:29.88 |
IV.HMDC.HHN. | ML:1.7 | 0.00020250000000000002 | 1.66 | AML | other | m | 2021-04-21T04:21:29.07 |
IV.HMDC.HHE. | ML:1.7 | 0.000171 | 1.72 | AML | other | m | 2021-04-21T04:21:30.04 |
IV.ISPIC.EHE. | ML:1.5 | 0.000108235145 | 0.2592 | AML | other | m | 2021-04-21T04:21:30.33 |
IV.SSY.HHN. | ML:2.3 | 0.000838 | 0.68 | AML | other | m | 2021-04-21T04:21:30.70 |
IV.ISPIC.EHN. | ML:1.3 | 0.000062664405 | 0.08 | AML | other | m | 2021-04-21T04:21:31.11 |
IV.HCRL.HHN. | ML:1.9 | 0.000246 | 0.48 | AML | other | m | 2021-04-21T04:21:31.50 |
IV.HCRL.HHE. | ML:1.9 | 0.000228 | 0.24 | AML | other | m | 2021-04-21T04:21:31.69 |
IV.HPAC.HHE. | ML:1.7 | 0.00015845455 | 0.2784 | AML | other | m | 2021-04-21T04:21:31.69 |
IV.HAGA.HHE. | ML:1.5 | 0.0001 | 0.76 | AML | other | m | 2021-04-21T04:21:31.35 |
IV.HAGA.HHN. | ML:1.4 | 0.00007785000000000001 | 0.96 | AML | other | m | 2021-04-21T04:21:32.76 |
IV.HPAC.HHN. | ML:1.4 | 0.00009202146 | 0.2624 | AML | other | m | 2021-04-21T04:21:32.23 |
IV.HVZN.HHE. | ML:2.0 | 0.0003145 | 0.38 | AML | other | m | 2021-04-21T04:21:33.13 |
IV.HVZN.HHN. | ML:2.0 | 0.00025550000000000003 | 0.74 | AML | other | m | 2021-04-21T04:21:33.84 |
IV.HVIT.HHE. | ML:2.0 | 0.000234 | 0.14 | AML | other | m | 2021-04-21T04:21:35.65 |
IV.HVIT.HHN. | ML:2.0 | 0.0002465 | 1.24 | AML | other | m | 2021-04-21T04:21:36.66 |