A magnitude ML 1.0 (explosion) earthquake occured in region: Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa), on
and geographic coordinates (lat, lon) 43.9520, 9.9270 at 0 km depth.
The earthquake was located by: Sala Sismica INGV-Roma.
Event type: explosion.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 |
---|---|---|---|---|
Ameglia | SP | 13 | 4365 | 4365 |
Portovenere | SP | 14 | 3630 | 7995 |
Lerici | SP | 14 | 10228 | 18223 |
Ortonovo | SP | 18 | 8277 | 26500 |
Castelnuovo Magra | SP | 18 | 8415 | 34915 |
Arcola | SP | 18 | 10607 | 45522 |
Sarzana | SP | 18 | 21976 | 67498 |
La Spezia | SP | 19 | 93959 | 161457 |
Forte dei Marmi | LU | 19 | 7510 | 168967 |
Carrara | MS | 20 | 63133 | 232100 |
Massa | MS | 20 | 69479 | 301579 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2018-09-19 10:14:36 |
43.9523 | 9.927 | 0 | 2018-09-19 10:32:54 |
Sala Sismica INGV-Roma | 61102001 |
Field | Value |
---|---|
Time (UTC) | 2018-09-19 10:14:36 ± 0.78 |
Latitude | 43.9523 ± 0.0468 |
Longitude | 9.9270 ± 0.0362 |
Depth (km) | 0 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | explosion |
Origin ID | 61102001 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 5710 |
Semi-minor axis of confidence ellipse (meter) | 1860 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 25 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 5710.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 226 |
Number of associated phases, regardless of their use for origin computation | 15 |
Number of defining phases | 5 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.48 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.46765 |
Number of stations at which the event was observed | 14 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.0 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 61102001 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2018-09-19 10:32:54 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
MN.TRI.HHZ. | 2018-09-19T10:16:16.83 | 3.0 | undecidable | manual | Sn | 5.92 | 0 | |||
IV.CRJA.HHZ. | 2018-09-19T10:16:11.92 | 3.0 | undecidable | manual | Pn | -5.34 | 0 | |||
GU.TRAV.HHZ. | 2018-09-19T10:15:52.84 | 3.0 | undecidable | manual | Sg | 6.08 | 0 | |||
MN.TRI.HHZ. | 2018-09-19T10:15:43.27 | 3.0 | positive | manual | Pg | 12.52 | 0 | |||
ST.DOSS.HHZ. | 2018-09-19T10:15:40.83 | 3.0 | undecidable | manual | Sn | -2.87 | 0 | |||
IV.GUMA.HHZ. | 2018-09-19T10:15:23.06 | 3.0 | positive | manual | Pn | 0.41 | 0 | |||
IV.NDIM.HNZ. | 2018-09-19T10:15:17.96 | 3.0 | undecidable | manual | S | -2.1 | 0 | |||
IV.ZONE.HHZ. | 2018-09-19T10:15:14.25 | 3.0 | positive | manual | Pg | 2.9 | 0 | |||
IV.VOBA.HNZ. | 2018-09-19T10:15:09.17 | 3.0 | undecidable | manual | Pg | -1.06 | 0 | |||
IV.RIBO.EHZ.01 | 2018-09-19T10:15:05.65 | 3.0 | undecidable | manual | P | 1.06 | 0 | |||
IV.MSSA.HHZ. | 2018-09-19T10:14:46.57 | 0.6 | undecidable | manual | P | 321 | 51.9036 | 90 | -0.78 | 40 |
GU.MAIM.HHZ. | 2018-09-19T10:14:46.17 | 0.3 | undecidable | manual | P | 95 | 45.3213 | 90 | 0.14 | 74 |
MN.VLC.HHZ. | 2018-09-19T10:14:45.14 | 0.6 | undecidable | manual | P | 58 | 43.2234 | 90 | -0.48 | 46 |
GU.EQUI.HHZ. | 2018-09-19T10:14:43.03 | 0.3 | undecidable | manual | P | 37 | 29.748 | 90 | 0.11 | 77 |
IV.PLMA.HHZ. | 2018-09-19T10:14:39.77 | 0.1 | undecidable | manual | P | 332 | 12.2766 | 90 | 0.35 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.PLMA.HHN. | ML:1.0 | 0.00014319999999999998 | 0.78 | AML | other | m | 2018-09-19T10:14:41.65 |
IV.PLMA.HHE. | ML:1.0 | 0.00013550000000000001 | 0.78 | AML | other | m | 2018-09-19T10:14:41.80 |