A magnitude ML 1.4 earthquake occured in region: Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa), on
and geographic coordinates (lat, lon) 44.0080, 9.9600 at 8 km depth.
The earthquake was located by: Sala Sismica INGV-Roma.
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 | 7 | 4365 | 4365 |
Lerici | SP | 9 | 10228 | 14593 |
Ortonovo | SP | 11 | 8277 | 22870 |
Portovenere | SP | 11 | 3630 | 26500 |
Castelnuovo Magra | SP | 11 | 8415 | 34915 |
Sarzana | SP | 12 | 21976 | 56891 |
Arcola | SP | 13 | 10607 | 67498 |
Carrara | MS | 14 | 63133 | 130631 |
Massa | MS | 15 | 69479 | 200110 |
Fosdinovo | MS | 15 | 4883 | 204993 |
La Spezia | SP | 15 | 93959 | 298952 |
Vezzano Ligure | SP | 16 | 7356 | 306308 |
Forte dei Marmi | LU | 17 | 7510 | 313818 |
Montignoso | MS | 18 | 10323 | 324141 |
Santo Stefano di Magra | SP | 18 | 9360 | 333501 |
Follo | SP | 19 | 6337 | 339838 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.4 | 2023-10-20 05:50:59 |
44.0078 | 9.9597 | 8 | 2023-10-20 06:04:21 |
Sala Sismica INGV-Roma | 122216621 |
Field | Value |
---|---|
Time (UTC) | 2023-10-20 05:50:59 ± 0.16 |
Latitude | 44.0078 ± 0.0135 |
Longitude | 9.9597 ± 0.0175 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 122216621 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1633 |
Semi-minor axis of confidence ellipse (meter) | 1198 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 316 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1630.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 195 |
Number of associated phases, regardless of their use for origin computation | 16 |
Number of defining phases | 13 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.27 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.39390 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 1.4 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 122216621 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-10-20 06:04:21 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CSNT.HHZ. | 2023-10-20T05:51:38.92 | 3.0 | undecidable | manual | S | -0.14 | 0 | |||
GU.CARD.HHZ. | 2023-10-20T05:51:13.42 | 0.6 | undecidable | manual | S | 87 | 41.7249 | 50 | -0.24 | 45 |
GU.MAIM.HHZ. | 2023-10-20T05:51:13.88 | 0.6 | undecidable | manual | S | 104 | 43.7229 | 50 | -0.32 | 44 |
MN.VLC.HHZ. | 2023-10-20T05:51:12.16 | 0.6 | undecidable | manual | S | 64 | 37.9287 | 50 | -0.49 | 45 |
GU.SARM.EHZ. | 2023-10-20T05:51:12.86 | 0.6 | undecidable | manual | S | 61 | 40.2264 | 50 | -0.39 | 46 |
GU.POPM.HHZ. | 2023-10-20T05:51:11.44 | 3.0 | positive | manual | P | -0.82 | 0 | |||
IV.BDI.HHZ. | 2023-10-20T05:51:10.84 | 3.0 | positive | manual | P | 0.75 | 0 | |||
GU.MAIM.HHZ. | 2023-10-20T05:51:08.06 | 0.1 | undecidable | manual | P | 104 | 43.7229 | 50 | 0.12 | 94 |
GU.SARM.EHZ. | 2023-10-20T05:51:07.53 | 0.1 | undecidable | manual | P | 61 | 40.2264 | 50 | 0.14 | 92 |
GU.EQUI.HHZ. | 2023-10-20T05:51:07.99 | 0.6 | undecidable | manual | S | 41 | 23.3544 | 109 | 0.05 | 46 |
MN.VLC.HHZ. | 2023-10-20T05:51:07.39 | 0.6 | positive | manual | P | 64 | 37.9287 | 50 | 0.35 | 44 |
GU.CARD.HHZ. | 2023-10-20T05:51:07.80 | 0.1 | undecidable | manual | P | 87 | 41.7249 | 50 | 0.18 | 93 |
GU.FIVI.HNZ. | 2023-10-20T05:51:05.82 | 0.1 | undecidable | manual | P | 27 | 28.9488 | 105 | 0.42 | 90 |
GU.EQUI.HHZ. | 2023-10-20T05:51:04.68 | 1.0 | positive | manual | P | 41 | 23.3544 | 109 | 0.35 | 24 |
IV.PLMA.HHZ. | 2023-10-20T05:51:03.19 | 0.6 | undecidable | manual | S | 299 | 9.6792 | 130 | -0.54 | 45 |
IV.PLMA.HHZ. | 2023-10-20T05:51:01.80 | 0.1 | positive | manual | P | 299 | 9.6792 | 130 | -0.09 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.POPM.HHN. | ML:1.5 | 0.00006709999999999999 | 0.8 | AML | other | m | 2023-10-20T05:51:22.99 |
GU.POPM.HHE. | ML:1.6 | 0.00008175000000000001 | 0.18 | AML | other | m | 2023-10-20T05:51:23.27 |
IV.PLMA.HHE. | ML:1.5 | 0.00046207679999999996 | 0.16 | AML | other | m | 2023-10-20T05:51:03.31 |
IV.PLMA.HHN. | ML:1.5 | 0.00053704975 | 0.16 | AML | other | m | 2023-10-20T05:51:03.30 |
GU.EQUI.HHE. | ML:0.8 | 0.00004679417499999999 | 0.08 | AML | other | m | 2023-10-20T05:51:08.32 |
GU.EQUI.HHN. | ML:1.3 | 0.00014141955 | 0.3584 | AML | other | m | 2023-10-20T05:51:08.09 |
MN.VLC.HHE. | ML:1.2 | 0.000058091315 | 0.0992 | AML | other | m | 2023-10-20T05:51:12.66 |
MN.VLC.HHN. | ML:1.1 | 0.000044139215 | 0.0992 | AML | other | m | 2023-10-20T05:51:12.75 |