A magnitude ML 1.8 earthquake occured in region: Costa Siciliana centro settentrionale (Palermo), on
and geographic coordinates (lat, lon) 38.4240, 13.0280 at 10 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 1.8 | 2021-04-04 08:43:14 |
38.4245 | 13.0275 | 10 | 2021-07-12 16:55:13 |
Bollettino Sismico Italiano INGV | 90642301 |
Reviewed Rev100 |
ML 1.7 | 2021-04-04 08:43:14 |
38.4357 | 13.0078 | 11 | 2021-04-04 08:55:03 |
Sala Sismica INGV-Roma | 88763121 |
Field | Value |
---|---|
Time (UTC) | 2021-04-04 08:43:14 ± 0.23 |
Latitude | 38.4245 ± 0.0108 |
Longitude | 13.0275 ± 0.0218 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 90642301 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1950 |
Semi-minor axis of confidence ellipse (meter) | 1130 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 287 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1950.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 161 |
Number of associated phases, regardless of their use for origin computation | 36 |
Number of defining phases | 17 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.43 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.76352 |
Number of stations at which the event was observed | 27 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.2 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 88763121 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-04 08:55:03 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.2 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 90642301 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-05-30 23:42:48 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MC2.EHZ. | 2021-04-04T08:45:18.00 | 3.0 | undecidable | manual | Sn | -0.86 | 0 | |||
IV.MNTV.EHZ. | 2021-04-04T08:45:15.99 | 3.0 | undecidable | manual | Pg | 17.91 | 0 | |||
IV.SBPO.HNZ. | 2021-04-04T08:45:11.07 | 3.0 | negative | manual | Pg | 14.61 | 0 | |||
IT.GLNS.HNZ. | 2021-04-04T08:45:09.26 | 3.0 | undecidable | manual | Sg | 7.51 | 0 | |||
IV.RMP.HHZ. | 2021-04-04T08:44:47.51 | 3.0 | undecidable | manual | Sn | -4.6 | 0 | |||
IV.CSNT.HHZ. | 2021-04-04T08:44:43.94 | 3.0 | undecidable | manual | Pg | 9.36 | 0 | |||
IV.SGG.HNZ. | 2021-04-04T08:44:42.36 | 3.0 | undecidable | manual | Sn | -3.8 | 0 | |||
RD.PGF.BHZ. | 2021-04-04T08:44:41.32 | 3.0 | undecidable | manual | Pg | 7.94 | 0 | |||
IV.MC2.EHZ. | 2021-04-04T08:44:38.99 | 3.0 | undecidable | manual | Pg | 14.27 | 0 | |||
IV.PAOL.HHZ. | 2021-04-04T08:44:33.69 | 3.0 | undecidable | manual | Sn | -5.83 | 0 | |||
IV.RIBO.EHZ.01 | 2021-04-04T08:44:23.48 | 3.0 | positive | manual | Pn | -4.91 | 0 | |||
IV.LNSS.HHZ. | 2021-04-04T08:44:22.81 | 3.0 | undecidable | manual | Pn | 2.36 | 0 | |||
IV.EFIU.HHZ. | 2021-04-04T08:44:17.46 | 3.0 | undecidable | manual | Sg | 3.09 | 0 | |||
IV.SGRT.HHZ. | 2021-04-04T08:44:14.73 | 3.0 | undecidable | manual | Pn | -2.52 | 0 | |||
IV.ORI.HHZ. | 2021-04-04T08:44:09.59 | 3.0 | positive | manual | Pg | 3.36 | 0 | |||
IV.IST3.HHZ. | 2021-04-04T08:44:08.68 | 3.0 | undecidable | manual | Sg | -4.27 | 0 | |||
IV.SGG.HNZ. | 2021-04-04T08:44:04.37 | 3.0 | undecidable | manual | Pn | -1.98 | 0 | |||
MN.VSL.HHZ. | 2021-04-04T08:43:58.84 | 3.0 | positive | manual | Pn | -5.47 | 0 | |||
IV.CET2.HHZ. | 2021-04-04T08:43:54.94 | 3.0 | undecidable | manual | Pn | -3.31 | 0 | |||
IV.MMGO.HHZ. | 2021-04-04T08:43:40.60 | 0.6 | undecidable | manual | S | 183 | 84.7485 | 50 | 0.85 | 50 |
IV.CRJA.HHZ. | 2021-04-04T08:43:36.16 | 0.3 | undecidable | manual | S | 182 | 69.0753 | 50 | 0.56 | 87 |
IV.CORL.HHZ. | 2021-04-04T08:43:34.98 | 0.6 | undecidable | manual | S | 158 | 63.5919 | 50 | 0.87 | 52 |
IV.MTGR.HHZ. | 2021-04-04T08:43:33.37 | 0.6 | undecidable | manual | S | 202 | 63.3921 | 50 | -0.7 | 55 |
IV.MBFT.HHZ. | 2021-04-04T08:43:30.64 | 0.6 | undecidable | manual | S | 187 | 53.4021 | 50 | -0.77 | 55 |
IV.MMGO.HHZ. | 2021-04-04T08:43:29.46 | 0.3 | undecidable | manual | P | 183 | 84.7485 | 50 | 0.4 | 88 |
IV.SCIAR.HHZ. | 2021-04-04T08:43:28.86 | 0.3 | undecidable | manual | P | 130 | 82.7505 | 50 | 0.11 | 94 |
IV.USI.HHZ. | 2021-04-04T08:43:27.16 | 0.6 | undecidable | manual | S | 23 | 34.0437 | 50 | 0.92 | 53 |
IV.MPG.HHZ. | 2021-04-04T08:43:27.95 | 0.6 | undecidable | manual | S | 135 | 41.1255 | 50 | -0.16 | 67 |
IV.CRJA.HHZ. | 2021-04-04T08:43:26.84 | 0.3 | undecidable | manual | P | 182 | 69.0753 | 50 | 0.18 | 95 |
IV.MTGR.HHZ. | 2021-04-04T08:43:26.28 | 0.3 | undecidable | manual | P | 202 | 63.3921 | 50 | 0.51 | 90 |
IV.CORL.HHZ. | 2021-04-04T08:43:25.30 | 0.3 | undecidable | manual | P | 158 | 63.5919 | 50 | -0.5 | 90 |
IV.ERC.EHN. | 2021-04-04T08:43:24.64 | 0.3 | undecidable | manual | P | 222 | 57.5979 | 50 | -0.23 | 96 |
IV.SOLUN.HHE. | 2021-04-04T08:43:24.90 | 0.3 | undecidable | manual | P | 130 | 57.3981 | 50 | 0.05 | 100 |
IV.MBFT.HHZ. | 2021-04-04T08:43:23.98 | 0.3 | undecidable | manual | P | 187 | 53.4021 | 50 | -0.26 | 96 |
IV.MPG.HHZ. | 2021-04-04T08:43:21.22 | 0.3 | undecidable | manual | P | 135 | 41.1255 | 50 | -1.12 | 72 |
IV.USI.HHZ. | 2021-04-04T08:43:20.91 | 0.3 | undecidable | manual | P | 23 | 34.0437 | 50 | -0.35 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.USI.HHE. | ML:1.7 | 0.0002215 | 0.2 | AML | other | m | 2021-04-04T08:43:27.27 |
IV.USI.HHN. | ML:2.2 | 0.000682 | 0.72 | AML | other | m | 2021-04-04T08:43:29.81 |
IV.MPG.HHE. | ML:1.8 | 0.0001985 | 0.54 | AML | other | m | 2021-04-04T08:43:30.77 |
IV.MPG.HHN. | ML:1.9 | 0.000242 | 0.46 | AML | other | m | 2021-04-04T08:43:31.43 |
IV.MBFT.HHN. | ML:1.4 | 0.00005755 | 1.2 | AML | other | m | 2021-04-04T08:43:32.86 |
IV.MBFT.HHE. | ML:1.6 | 0.00008925 | 1 | AML | other | m | 2021-04-04T08:43:33.94 |
IV.CORL.HHN. | ML:2.1 | 0.0002235 | 1.56 | AML | other | m | 2021-04-04T08:43:41.91 |
IV.MMGO.HNN. | ML:1.7 | 0.00006494999999999999 | 1.64 | AML | other | m | 2021-04-04T08:43:42.88 |
IV.CORL.HHE. | ML:2.1 | 0.000258 | 1.66 | AML | other | m | 2021-04-04T08:43:43.86 |
IV.MMGO.HHN. | ML:1.7 | 0.00006795 | 0.46 | AML | other | m | 2021-04-04T08:43:43.05 |
IV.MMGO.HHE. | ML:1.5 | 0.00004245 | 0.6 | AML | other | m | 2021-04-04T08:43:43.42 |
IV.MMGO.HNE. | ML:1.7 | 0.00006112 | 1.32 | AML | other | m | 2021-04-04T08:43:50.93 |