A magnitude ML 0.8 (explosion) earthquake occured in region: Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa), on
and geographic coordinates (lat, lon) 43.9730, 9.9460 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 | 10 | 4365 | 4365 |
Lerici | SP | 12 | 10228 | 14593 |
Portovenere | SP | 13 | 3630 | 18223 |
Ortonovo | SP | 15 | 8277 | 26500 |
Castelnuovo Magra | SP | 15 | 8415 | 34915 |
Sarzana | SP | 16 | 21976 | 56891 |
Arcola | SP | 16 | 10607 | 67498 |
Carrara | MS | 17 | 63133 | 130631 |
Massa | MS | 17 | 69479 | 200110 |
La Spezia | SP | 18 | 93959 | 294069 |
Forte dei Marmi | LU | 18 | 7510 | 301579 |
Fosdinovo | MS | 19 | 4883 | 306462 |
Montignoso | MS | 19 | 10323 | 316785 |
Vezzano Ligure | SP | 19 | 7356 | 324141 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.8 | 2018-09-19 10:48:25 |
43.9732 | 9.9462 | 0 | 2018-09-19 11:00:32 |
Sala Sismica INGV-Roma | 61102251 |
Field | Value |
---|---|
Time (UTC) | 2018-09-19 10:48:25 ± 0.58 |
Latitude | 43.9732 ± 0.0360 |
Longitude | 9.9462 ± 0.0237 |
Depth (km) | 0 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | explosion |
Origin ID | 61102251 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 4220 |
Semi-minor axis of confidence ellipse (meter) | 1450 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 19 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 4220.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 220 |
Number of associated phases, regardless of their use for origin computation | 20 |
Number of defining phases | 8 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.46 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.52520 |
Number of stations at which the event was observed | 20 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.1 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 61102251 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2018-09-19 11:00:32 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MGR.HHZ. | 2018-09-19T10:50:06.18 | 3.0 | undecidable | manual | Pg | 16.120001 | 0 | |||
IV.ACER.HHZ. | 2018-09-19T10:50:03.51 | 3.0 | negative | manual | Pg | 16.32 | 0 | |||
CR.ZAG.BHZ. | 2018-09-19T10:49:54.96 | 3.0 | undecidable | manual | Pg | 20.879999 | 0 | |||
ST.ZIAN.EHZ. | 2018-09-19T10:49:41.66 | 3.0 | undecidable | manual | Sg | 7.93 | 0 | |||
IV.IOCA.HHZ. | 2018-09-19T10:49:39.14 | 3.0 | positive | manual | Pg | 7.04 | 0 | |||
IV.VIVA.HHZ. | 2018-09-19T10:49:22.14 | 3.0 | positive | manual | Pg | 8.13 | 0 | |||
IV.BRES.EHZ. | 2018-09-19T10:49:20.70 | 3.0 | undecidable | manual | Pg | 11.69 | 0 | |||
MN.TRI.HHZ. | 2018-09-19T10:49:11.61 | 3.0 | positive | manual | Pn | -2.09 | 0 | |||
IV.NDIM.HNZ. | 2018-09-19T10:48:59.75 | 3.0 | undecidable | manual | Sn | -0.28 | 0 | |||
TV.SF04.EHZ. | 2018-09-19T10:48:56.80 | 3.0 | negative | manual | Pg | 1.37 | 0 | |||
GU.SATI.HHZ. | 2018-09-19T10:48:55.50 | 3.0 | negative | manual | Pn | -3.7 | 0 | |||
IV.CNCS.HNZ. | 2018-09-19T10:48:50.73 | 3.0 | undecidable | manual | Pg | 1.08 | 0 | |||
GU.GRAM.HHE. | 2018-09-19T10:48:36.14 | 0.1 | undecidable | manual | P | 9 | 58.2972 | 90 | -0.59 | 93 |
IV.MSSA.HHZ. | 2018-09-19T10:48:34.86 | 0.1 | undecidable | manual | P | 318 | 51.1155 | 90 | -0.44 | 99 |
GU.MAIM.HHZ. | 2018-09-19T10:48:33.61 | 0.6 | undecidable | manual | P | 98 | 44.0226 | 90 | -0.27 | 52 |
MN.VLC.HHZ. | 2018-09-19T10:48:33.61 | 0.6 | undecidable | manual | P | 59 | 40.7259 | 90 | 0.4 | 51 |
GU.CARD.HHZ. | 2018-09-19T10:48:33.55 | 0.6 | undecidable | manual | P | 82 | 43.1235 | 90 | -0.15 | 53 |
GU.SARM.EHZ. | 2018-09-19T10:48:33.83 | 0.6 | undecidable | manual | P | 57 | 43.1235 | 90 | 0.14 | 54 |
GU.EQUI.HHZ. | 2018-09-19T10:48:31.10 | 0.6 | undecidable | manual | P | 38 | 27.0507 | 90 | 0.64 | 48 |
IV.PLMA.HHZ. | 2018-09-19T10:48:27.93 | 0.1 | positive | manual | P | 319 | 11.2776 | 91 | 0.62 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.PLMA.HHN. | ML:0.8 | 0.000097 | 0.3 | AML | other | m | 2018-09-19T10:48:29.81 |
IV.PLMA.HHE. | ML:0.9 | 0.000126 | 0.88 | AML | other | m | 2018-09-19T10:48:30.75 |