A magnitude ML 1.7 earthquake occured in region: Costa Siracusana (Siracusa), on
and geographic coordinates (lat, lon) 37.3760, 15.5300 at 27 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.
No Italian municipalities within 20 km distance.
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.7 | 2020-05-21 20:58:57 |
37.3762 | 15.5303 | 27 | 2020-11-19 12:36:47 |
Bollettino Sismico Italiano INGV | 80001051 |
Reviewed Rev100 |
ML 1.6 | 2020-05-21 20:58:56 |
37.3712 | 15.5708 | 11 | 2020-05-21 21:07:12 |
Sala Sismica INGV-Roma | 79422091 |
Field | Value |
---|---|
Time (UTC) | 2020-05-21 20:58:57 ± 0.21 |
Latitude | 37.3762 ± 0.0063 |
Longitude | 15.5303 ± 0.0124 |
Depth (km) | 27 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 80001051 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1066 |
Semi-minor axis of confidence ellipse (meter) | 496 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 286 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1070.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 232 |
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) | 0.24 |
Epicentral distance of station closest to the epicenter (degree) | 0.26890 |
Epicentral distance of station farthest from the epicenter (degree) | 1.26625 |
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 | 1.7 |
Uncertainty | 0.2 |
Num. used stations | 9 |
Type of magnitude | ML |
Reference to an origin | 80001051 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2020-06-08 13:57:41 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 9 |
Type of magnitude | ML |
Reference to an origin | 79422091 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-05-21 21:07:12 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.HPAC.HHZ. | 2020-05-21T20:59:23.58 | 0.6 | undecidable | manual | S | 211 | 85.9473 | 102 | 0.44 | 42 |
IV.CLTA.HHZ. | 2020-05-21T20:59:20.21 | 0.6 | undecidable | manual | P | 261 | 140.5482 | 54 | 0.24 | 38 |
IV.MEU.EHZ. | 2020-05-21T20:59:18.50 | 0.6 | undecidable | manual | S | 245 | 68.4759 | 106 | -0.11 | 47 |
IV.ESML.HHZ. | 2020-05-21T20:59:17.11 | 0.6 | undecidable | manual | S | 295 | 63.2922 | 107 | -0.16 | 47 |
IV.MSFR.HHZ. | 2020-05-21T20:59:16.49 | 0.3 | undecidable | manual | P | 312 | 110.0121 | 99 | 0.63 | 55 |
IV.HLNI.HHZ. | 2020-05-21T20:59:15.96 | 0.6 | undecidable | manual | S | 267 | 58.0974 | 109 | 0 | 48 |
IV.MUCR.HHE. | 2020-05-21T20:59:13.62 | 0.6 | undecidable | manual | P | 322 | 93.7395 | 101 | 0.23 | 43 |
IT.LNT.HGZ. | 2020-05-21T20:59:13.87 | 0.6 | undecidable | manual | S | 258 | 47.619 | 113 | 0.53 | 43 |
IV.HPAC.HHZ. | 2020-05-21T20:59:12.63 | 0.1 | undecidable | manual | P | 211 | 85.9473 | 102 | 0.42 | 84 |
IV.SSY.HHZ. | 2020-05-21T20:59:12.90 | 0.6 | undecidable | manual | S | 239 | 47.0196 | 114 | -0.3 | 47 |
IV.HAGA.HHZ. | 2020-05-21T20:59:10.45 | 0.3 | undecidable | manual | S | 253 | 34.6431 | 122 | 0.19 | 73 |
IV.HVZN.HNZ. | 2020-05-21T20:59:10.56 | 0.1 | undecidable | manual | P | 253 | 75.1692 | 104 | -0.04 | 94 |
IV.AIO.HHZ. | 2020-05-21T20:59:09.93 | 0.3 | undecidable | manual | P | 339 | 70.9734 | 105 | -0.04 | 71 |
IV.AGST.EHZ. | 2020-05-21T20:59:09.17 | 0.6 | undecidable | manual | S | 244 | 29.8479 | 127 | -0.04 | 51 |
IV.MEU.EHZ. | 2020-05-21T20:59:09.17 | 0.1 | positive | manual | P | 245 | 68.4759 | 106 | -0.43 | 88 |
IV.HLNI.HHZ. | 2020-05-21T20:59:08.00 | 0.1 | positive | manual | P | 267 | 58.0974 | 109 | -0.07 | 97 |
IV.ESML.HHZ. | 2020-05-21T20:59:08.54 | 0.3 | undecidable | manual | P | 295 | 63.2922 | 107 | -0.29 | 69 |
IT.LNT.HGZ. | 2020-05-21T20:59:06.69 | 0.3 | undecidable | manual | P | 258 | 47.619 | 113 | 0.13 | 72 |
IV.SSY.HHZ. | 2020-05-21T20:59:06.23 | 0.1 | positive | manual | P | 239 | 47.0196 | 114 | -0.25 | 95 |
IV.HAGA.HHZ. | 2020-05-21T20:59:04.67 | 0.1 | positive | manual | P | 253 | 34.6431 | 122 | -0.11 | 100 |
IV.AGST.EHZ. | 2020-05-21T20:59:03.94 | 0.1 | positive | manual | P | 244 | 29.8479 | 127 | -0.24 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.HLNI.HHN. | ML:2.2 | 0.00028284854999999996 | 0.1664 | AML | other | m | 2020-05-21T20:59:16.51 |
IV.AGST.EHE. | ML:1.4 | 0.00009594449499999999 | 0.0768 | AML | other | m | 2020-05-21T20:59:10.34 |
IV.AGST.EHN. | ML:1.4 | 0.00008489199 | 0.0768 | AML | other | m | 2020-05-21T20:59:09.48 |
IV.HAGA.HHE. | ML:1.5 | 0.00010796401499999999 | 0.0768 | AML | other | m | 2020-05-21T20:59:10.68 |
IV.HAGA.HHN. | ML:1.7 | 0.00016153436999999997 | 0.0768 | AML | other | m | 2020-05-21T20:59:10.69 |
IV.SSY.HHE. | ML:1.6 | 0.000098074555 | 0.1792 | AML | other | m | 2020-05-21T20:59:16.67 |
IV.HLNI.HHE. | ML:2.0 | 0.00018722094999999998 | 0.2048 | AML | other | m | 2020-05-21T20:59:16.71 |
IV.MEU.EHN. | ML:1.8 | 0.00009121646 | 0.2688 | AML | other | m | 2020-05-21T20:59:20.16 |
IV.MEU.EHE. | ML:1.6 | 0.00006257017500000001 | 1.4976 | AML | other | m | 2020-05-21T20:59:20.25 |