A magnitude ML 1.6 earthquake occured in region: Tirreno Meridionale (MARE), on
and geographic coordinates (lat, lon) 38.4860, 12.5050 at 9 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 1.6 | 2018-04-06 21:15:50 |
38.4857 | 12.505 | 9 | 2019-04-24 14:49:34 |
Bollettino Sismico Italiano INGV | 57336081 |
Reviewed Rev100 |
ML 1.7 | 2018-04-06 21:15:50 |
38.4792 | 12.5407 | 34 | 2018-04-06 21:30:36 |
Sala Sismica INGV-Roma | 55197461 |
Field | Value |
---|---|
Time (UTC) | 2018-04-06 21:15:50 ± 0.58 |
Latitude | 38.4857 ± 0.0225 |
Longitude | 12.5050 ± 0.0368 |
Depth (km) | 9 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 57336081 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 3570 |
Semi-minor axis of confidence ellipse (meter) | 1920 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 303 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 3570.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 251 |
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) | 0.54 |
Epicentral distance of station closest to the epicenter (degree) | 0.45236 |
Epicentral distance of station farthest from the epicenter (degree) | 1.06570 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 57336081 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2019-02-20 17:55:45 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.2 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 55197461 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2018-04-06 21:30:36 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SOLUN.HHE. | 2018-04-06T21:16:20.32 | 0.6 | undecidable | manual | S | 116 | 99.5226 | 50 | 0.14 | 50 |
IV.CRJA.HHZ. | 2018-04-06T21:16:18.02 | 0.3 | undecidable | manual | S | 150 | 87.5457 | 50 | 1.07 | 56 |
IV.MARS.EHN. | 2018-04-06T21:16:16.49 | 0.3 | undecidable | manual | S | 176 | 81.4518 | 50 | 1.16 | 54 |
IV.MPG.SHZ. | 2018-04-06T21:16:15.45 | 0.6 | undecidable | manual | S | 116 | 82.6506 | 50 | -0.21 | 51 |
IV.MBFT.HHZ. | 2018-04-06T21:16:11.50 | 0.6 | undecidable | manual | S | 147 | 71.4729 | 50 | -1.18 | 36 |
IV.USI.HHE. | 2018-04-06T21:16:11.25 | 0.6 | undecidable | manual | S | 67 | 63.3921 | 50 | 0.72 | 46 |
MN.CLTB.HHN. | 2018-04-06T21:16:10.95 | 0.3 | undecidable | manual | P | 148 | 118.2927 | 50 | 0.36 | 69 |
IV.SOLUN.HHE. | 2018-04-06T21:16:07.02 | 0.3 | undecidable | manual | P | 116 | 99.5226 | 50 | -0.68 | 65 |
IV.MMGO.HHZ. | 2018-04-06T21:16:07.60 | 0.1 | undecidable | manual | P | 156 | 100.2219 | 50 | -0.21 | 99 |
IV.CRJA.HHZ. | 2018-04-06T21:16:06.12 | 0.1 | undecidable | manual | P | 150 | 87.5457 | 50 | 0.27 | 100 |
IV.CORL.HHZ. | 2018-04-06T21:16:06.86 | 0.3 | undecidable | manual | P | 133 | 95.6376 | 50 | -0.25 | 74 |
IV.MFNL.HHE. | 2018-04-06T21:16:06.14 | 0.6 | undecidable | manual | P | 155 | 85.248 | 50 | 0.64 | 45 |
IV.MARS.EHN. | 2018-04-06T21:16:05.20 | 0.3 | undecidable | manual | P | 176 | 81.4518 | 50 | 0.29 | 75 |
IV.MPG.SHZ. | 2018-04-06T21:16:04.62 | 0.3 | undecidable | manual | P | 116 | 82.6506 | 50 | -0.48 | 72 |
IV.ERC.EHZ. | 2018-04-06T21:16:03.42 | 0.6 | undecidable | manual | S | 172 | 50.2164 | 50 | -3.58 | 3 |
IV.MBFT.HHZ. | 2018-04-06T21:16:02.71 | 0.1 | undecidable | manual | P | 147 | 71.4729 | 50 | -0.67 | 92 |
IV.USI.HHE. | 2018-04-06T21:16:02.59 | 0.3 | undecidable | manual | P | 67 | 63.3921 | 50 | 0.46 | 75 |
IV.ERC.EHZ. | 2018-04-06T21:15:57.86 | 0.3 | undecidable | manual | P | 172 | 50.2164 | 50 | -2.24 | 26 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MBFT.HHN. | ML:1.9 | 0.00014108120000000003 | 0.512 | AML | other | m | 2018-04-06T21:16:13.41 |
IV.MBFT.HHE. | ML:1.8 | 0.00009403054500000001 | 0.2432 | AML | other | m | 2018-04-06T21:16:13.96 |
IV.MPG.SHE. | ML:0.0 | 0.000034552175 | 0.4352 | AML | other | m | 2018-04-06T21:16:16.41 |
IV.MPG.SHN. | ML:0.0 | 0.000037645885 | 0.2304 | AML | other | m | 2018-04-06T21:16:16.81 |
IV.MMGO.HHN. | ML:1.3 | 0.000021618704999999997 | 0.32 | AML | other | m | 2018-04-06T21:16:23.66 |
IV.MMGO.HHE. | ML:1.4 | 0.00002342334 | 0.3328 | AML | other | m | 2018-04-06T21:16:25.06 |