A magnitude ML 1.9 earthquake occured in region: Costa Siracusana (Siracusa), on
and geographic coordinates (lat, lon) 37.0150, 15.7120 at 24 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 1.9 | 2023-04-18 16:40:49 |
37.015 | 15.7125 | 24 | 2024-03-01 17:18:20 |
Bollettino Sismico Italiano INGV | 125093151 |
Reviewed Rev100 |
ML 1.9 | 2023-04-18 16:40:49 |
37.0048 | 15.7018 | 7 | 2023-04-18 16:59:31 |
Sala Sismica INGV-Roma | 116494331 |
Field | Value |
---|---|
Time (UTC) | 2023-04-18 16:40:49 ± 0.11 |
Latitude | 37.0150 ± 0.0045 |
Longitude | 15.7125 ± 0.0079 |
Depth (km) | 24 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 125093151 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 622 |
Semi-minor axis of confidence ellipse (meter) | 506 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 51 |
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) | 300 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 18 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.12 |
Epicentral distance of station closest to the epicenter (degree) | 0.39840 |
Epicentral distance of station farthest from the epicenter (degree) | 0.81119 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.9 |
Uncertainty | 0.3 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 116494331 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-04-18 16:59:31 |
Field | Value |
---|---|
Value | 1.9 |
Uncertainty | 0.3 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 125093151 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2024-02-07 11:08:24 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.HVZN.HHE. | 2023-04-18T16:41:16.67 | 0.6 | undecidable | manual | S | 282 | 90.0432 | 99 | 0.34 | 44 |
IV.HMDC.HHZ. | 2023-04-18T16:41:14.40 | 0.3 | undecidable | manual | S | 266 | 82.5507 | 100 | 0.03 | 71 |
IV.HLNI.HHZ. | 2023-04-18T16:41:14.39 | 0.3 | undecidable | manual | S | 297 | 82.9503 | 100 | -0.08 | 70 |
IV.HPAC.HHZ. | 2023-04-18T16:41:10.98 | 0.3 | undecidable | manual | S | 241 | 68.8755 | 103 | 0.19 | 70 |
IV.HCRL.HHE. | 2023-04-18T16:41:10.43 | 0.3 | undecidable | manual | S | 297 | 67.0773 | 103 | 0.12 | 71 |
IV.SSY.HHZ. | 2023-04-18T16:41:08.21 | 0.3 | undecidable | manual | S | 286 | 58.6968 | 105 | 0.06 | 73 |
IV.HAGA.HHE. | 2023-04-18T16:41:07.89 | 0.3 | undecidable | manual | S | 301 | 57.6978 | 106 | 0.01 | 74 |
IV.HAVL.HHZ. | 2023-04-18T16:41:06.52 | 0.3 | undecidable | manual | S | 263 | 52.7028 | 107 | -0.09 | 73 |
IV.HVZN.HHE. | 2023-04-18T16:41:05.18 | 0.6 | undecidable | manual | P | 282 | 90.0432 | 99 | 0.17 | 45 |
IV.HSRS.HHE. | 2023-04-18T16:41:04.21 | 0.6 | undecidable | manual | S | 281 | 44.2224 | 111 | -0.28 | 48 |
IV.HMDC.HHZ. | 2023-04-18T16:41:03.65 | 0.1 | undecidable | manual | P | 266 | 82.5507 | 100 | -0.23 | 90 |
IV.HLNI.HHZ. | 2023-04-18T16:41:03.81 | 0.1 | undecidable | manual | P | 297 | 82.9503 | 100 | -0.13 | 92 |
IV.HCRL.HHE. | 2023-04-18T16:41:01.60 | 0.1 | undecidable | manual | P | 297 | 67.0773 | 103 | 0.06 | 96 |
IV.HPAC.HHZ. | 2023-04-18T16:41:01.82 | 0.3 | undecidable | manual | P | 241 | 68.8755 | 103 | 0 | 73 |
IV.HAGA.HHE. | 2023-04-18T16:41:00.23 | 0.1 | undecidable | manual | P | 301 | 57.6978 | 106 | 0.09 | 97 |
IV.SSY.HHZ. | 2023-04-18T16:41:00.32 | 0.1 | undecidable | manual | P | 286 | 58.6968 | 105 | 0.03 | 98 |
IV.HAVL.HHZ. | 2023-04-18T16:40:59.38 | 0.3 | undecidable | manual | P | 263 | 52.7028 | 107 | -0.02 | 75 |
IV.HSRS.HHE. | 2023-04-18T16:40:58.09 | 0.1 | undecidable | manual | P | 281 | 44.2224 | 111 | -0.09 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.HAVL.HHN. | ML:1.8 | 0.000151121 | 0.3072 | AML | other | m | 2023-04-18T16:41:06.65 |
IV.HAVL.HHE. | ML:1.8 | 0.00013472499999999998 | 0.1408 | AML | other | m | 2023-04-18T16:41:07.46 |
IV.SSY.HNN. | ML:2.1 | 0.0002631273 | 0.1664 | AML | other | m | 2023-04-18T16:41:08.43 |
IV.SSY.HHN. | ML:2.2 | 0.00033398594999999997 | 0.1664 | AML | other | m | 2023-04-18T16:41:08.42 |
IV.HLNI.HNN. | ML:1.9 | 0.000095720505 | 1.0016 | AML | other | m | 2023-04-18T16:41:08.58 |
IV.SSY.HNE. | ML:2.2 | 0.00029889215000000003 | 0.32 | AML | other | m | 2023-04-18T16:41:08.76 |
IV.HPAC.HHE. | ML:2.0 | 0.00015282485000000002 | 0.9632 | AML | other | m | 2023-04-18T16:41:09.61 |
IV.HPAC.HHN. | ML:2.2 | 0.00026097485 | 0.5024 | AML | other | m | 2023-04-18T16:41:09.62 |
IV.SSY.HHE. | ML:1.8 | 0.000130802325 | 0.0896 | AML | other | m | 2023-04-18T16:41:09.59 |
IV.HMDC.HHN. | ML:1.5 | 0.000040450625000000004 | 0.6784 | AML | other | m | 2023-04-18T16:41:09.64 |
IV.HLNI.HNE. | ML:1.9 | 0.000091744345 | 1.3344 | AML | other | m | 2023-04-18T16:41:11.13 |
IV.HMDC.HHE. | ML:1.6 | 0.000047743784999999994 | 1.2192 | AML | other | m | 2023-04-18T16:41:11.21 |
IV.HLNI.HHN. | ML:1.5 | 0.000041418700000000004 | 0.1152 | AML | other | m | 2023-04-18T16:41:15.16 |
IV.HLNI.HHE. | ML:1.4 | 0.000034473565 | 0.1792 | AML | other | m | 2023-04-18T16:41:15.33 |
IV.HMDC.HNN. | ML:2.1 | 0.00014262655 | 0.448 | AML | other | m | 2023-04-18T16:41:21.45 |
IV.HMDC.HNE. | ML:2.1 | 0.00015698279999999998 | 0.9216 | AML | other | m | 2023-04-18T16:41:23.46 |