A magnitude ML 0.8 (controlled explosion) earthquake occured in region: Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa), on
and geographic coordinates (lat, lon) 43.9730, 9.9140 at 0 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
Event type: controlled 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 | 11 | 4365 | 4365 |
Portovenere | SP | 11 | 3630 | 7995 |
Lerici | SP | 12 | 10228 | 18223 |
Arcola | SP | 16 | 10607 | 28830 |
Sarzana | SP | 16 | 21976 | 50806 |
Ortonovo | SP | 16 | 8277 | 59083 |
Castelnuovo Magra | SP | 16 | 8415 | 67498 |
La Spezia | SP | 17 | 93959 | 161457 |
Carrara | MS | 19 | 63133 | 224590 |
Vezzano Ligure | SP | 19 | 7356 | 231946 |
Massa | MS | 20 | 69479 | 301425 |
Fosdinovo | MS | 20 | 4883 | 306308 |
Riomaggiore | SP | 20 | 1576 | 307884 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.8 | 2015-11-04 10:58:41 |
43.9727 | 9.9143 | 1 | 2016-02-19 13:22:41 |
Bollettino Sismico Italiano INGV | 22501101 |
Reviewed Rev100 |
ML 0.9 | 2015-11-04 10:58:42 |
44.0113 | 9.9237 | 7 | 2015-11-04 11:18:37 |
Sala Sismica INGV-Roma | 22079951 |
Field | Value |
---|---|
Time (UTC) | 2015-11-04 10:58:41 ± 0.23 |
Latitude | 43.9727 ± 0.0135 |
Longitude | 9.9143 ± 0.0150 |
Depth (km) | 1 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | controlled explosion |
Origin ID | 22501101 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1620 |
Semi-minor axis of confidence ellipse (meter) | 1010 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 34 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1620.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 138 |
Number of associated phases, regardless of their use for origin computation | 23 |
Number of defining phases | 11 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.35 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.54679 |
Number of stations at which the event was observed | 23 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 0.8 |
Uncertainty | 0.1 |
Num. used stations | 1 |
Type of magnitude | ML |
Reference to an origin | 22501101 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-12-01 11:04:04 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 22079951 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2015-11-04 11:18:37 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.GIUL.HHZ. | 2015-11-04T11:00:31.99 | 3.0 | undecidable | manual | Sg | 5.01 | 0 | |||
IV.PCRO.HNZ. | 2015-11-04T11:00:15.99 | 3.0 | undecidable | manual | Sg | 7.2 | 0 | |||
IV.PLLN.SHZ. | 2015-11-04T11:00:14.78 | 3.0 | negative | manual | Pn | -5.81 | 0 | |||
IV.NRCA.HNZ. | 2015-11-04T11:00:05.99 | 3.0 | undecidable | manual | Sn | -2.09 | 0 | |||
IV.SRES.HHZ. | 2015-11-04T11:00:03.99 | 3.0 | undecidable | manual | Sn | -2.28 | 0 | |||
IV.ARVD.HHZ. | 2015-11-04T11:00:02.99 | 3.0 | undecidable | manual | Sg | 3.26 | 0 | |||
IV.PE3.EHZ. | 2015-11-04T10:59:53.99 | 3.0 | undecidable | manual | Sg | 3.03 | 0 | |||
IV.CAFR.HHZ. | 2015-11-04T10:59:49.97 | 3.0 | undecidable | manual | Pg | 9.41 | 0 | |||
IV.LPEL.HHZ. | 2015-11-04T10:59:49.30 | 3.0 | undecidable | manual | Pg | 8.98 | 0 | |||
IV.CAVE.HHZ. | 2015-11-04T10:59:25.99 | 3.0 | undecidable | manual | Sg | -0.16 | 0 | |||
IV.TRIF.HHZ. | 2015-11-04T10:59:21.99 | 3.0 | undecidable | manual | Sn | -8.07 | 0 | |||
IV.MONC.HHZ. | 2015-11-04T10:58:55.53 | 3.0 | positive | manual | Pg | 0.25 | 0 | |||
IV.PII.HHE. | 2015-11-04T10:58:53.10 | 0.6 | undecidable | manual | P | 119 | 56.1993 | 91 | 0.33 | 51 |
IV.GROG.HHE. | 2015-11-04T10:58:53.29 | 0.6 | undecidable | manual | P | 182 | 60.6948 | 50 | -0.34 | 50 |
IV.BDI.HHZ. | 2015-11-04T10:58:52.45 | 0.3 | undecidable | manual | P | 79 | 55.3002 | 91 | -0.13 | 80 |
GU.GRAM.HHE. | 2015-11-04T10:58:52.81 | 0.3 | undecidable | manual | P | 12 | 58.7967 | 90 | -0.48 | 74 |
GU.CARD.HHE. | 2015-11-04T10:58:51.31 | 0.6 | undecidable | manual | P | 82 | 45.7209 | 91 | 0.64 | 47 |
GU.MAIM.HHZ. | 2015-11-04T10:58:50.82 | 0.3 | undecidable | manual | P | 98 | 46.5201 | 91 | -0.02 | 83 |
GU.SARM.HHZ. | 2015-11-04T10:58:50.34 | 0.3 | undecidable | manual | P | 59 | 45.3213 | 91 | -0.25 | 79 |
IV.MSSA.HHZ. | 2015-11-04T10:58:50.97 | 0.3 | undecidable | manual | P | 320 | 49.5171 | 91 | -0.46 | 75 |
MN.VLC.HHZ. | 2015-11-04T10:58:50.00 | 0.3 | undecidable | manual | P | 61 | 42.9237 | 91 | -0.12 | 82 |
GU.EQUI.HHZ. | 2015-11-04T10:58:47.43 | 0.3 | undecidable | manual | P | 41 | 28.6491 | 91 | 0.17 | 83 |
IV.PLMA.HHZ. | 2015-11-04T10:58:44.15 | 0.1 | undecidable | manual | P | 331 | 9.879 | 93 | 0.66 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.EQUI.HHE. | ML:0.7 | 0.0000312 | 0.48 | AML | other | m | 2015-11-04T10:58:51.77 |
GU.EQUI.HHN. | ML:0.9 | 0.000042499999999999996 | 0.62 | AML | other | m | 2015-11-04T10:58:54.84 |