A magnitude ML 1.2 earthquake occured in region: 2 km SE Santo Stefano di Magra (SP), on
and geographic coordinates (lat, lon) 44.1450, 9.9290 at 9 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 |
---|---|---|---|---|
Santo Stefano di Magra | SP | 2 | 9360 | 9360 |
Vezzano Ligure | SP | 4 | 7356 | 16716 |
Arcola | SP | 4 | 10607 | 27323 |
Sarzana | SP | 4 | 21976 | 49299 |
Follo | SP | 6 | 6337 | 55636 |
Bolano | SP | 6 | 7813 | 63449 |
Podenzana | MS | 7 | 2180 | 65629 |
Fosdinovo | MS | 7 | 4883 | 70512 |
Lerici | SP | 8 | 10228 | 80740 |
Aulla | MS | 8 | 11263 | 92003 |
Castelnuovo Magra | SP | 9 | 8415 | 100418 |
Ameglia | SP | 9 | 4365 | 104783 |
La Spezia | SP | 9 | 93959 | 198742 |
Tresana | MS | 11 | 2044 | 200786 |
Ortonovo | SP | 11 | 8277 | 209063 |
Portovenere | SP | 12 | 3630 | 212693 |
Riccò del Golfo di Spezia | SP | 13 | 3698 | 216391 |
Calice al Cornoviglio | SP | 13 | 1138 | 217529 |
Beverino | SP | 14 | 2429 | 219958 |
Carrara | MS | 15 | 63133 | 283091 |
Riomaggiore | SP | 16 | 1576 | 284667 |
Licciana Nardi | MS | 16 | 4949 | 289616 |
Villafranca in Lunigiana | MS | 17 | 4770 | 294386 |
Pignone | SP | 17 | 565 | 294951 |
Rocchetta di Vara | SP | 18 | 703 | 295654 |
Fivizzano | MS | 19 | 7925 | 303579 |
Borghetto di Vara | SP | 19 | 938 | 304517 |
Brugnato | SP | 19 | 1270 | 305787 |
Vernazza | SP | 20 | 848 | 306635 |
Bagnone | MS | 20 | 1887 | 308522 |
Mulazzo | MS | 20 | 2424 | 310946 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2023-09-16 00:39:13 |
44.1447 | 9.9292 | 9 | 2023-09-16 00:59:06 |
Sala Sismica INGV-Roma | 121093501 |
Field | Value |
---|---|
Time (UTC) | 2023-09-16 00:39:13 ± 0.11 |
Latitude | 44.1447 ± 0.0072 |
Longitude | 9.9292 ± 0.0075 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 121093501 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 838 |
Semi-minor axis of confidence ellipse (meter) | 490 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 341 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 840.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 90 |
Number of associated phases, regardless of their use for origin computation | 20 |
Number of defining phases | 20 |
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) | 0.10882 |
Epicentral distance of station farthest from the epicenter (degree) | 0.83187 |
Number of stations at which the event was observed | 12 |
Number of stations from which data was used for origin computation | 12 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.2 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 121093501 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-16 00:59:06 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.POPM.HHZ. | 2023-09-16T00:39:34.74 | 0.3 | undecidable | manual | S | 99 | 66.8775 | 50 | 0.22 | 66 |
GU.GSCL.HHZ. | 2023-09-16T00:39:32.26 | 0.6 | undecidable | manual | S | 66 | 57.0984 | 50 | 0.34 | 44 |
IV.CRMI.HHZ. | 2023-09-16T00:39:30.44 | 0.3 | undecidable | manual | P | 114 | 92.3409 | 50 | 0.74 | 54 |
GU.MAIM.HHZ. | 2023-09-16T00:39:29.79 | 0.6 | undecidable | manual | S | 120 | 51.7038 | 50 | -0.68 | 40 |
GU.CARD.HHZ. | 2023-09-16T00:39:28.56 | 0.3 | undecidable | manual | S | 106 | 46.0206 | 50 | -0.38 | 66 |
GU.RNCA.HHZ. | 2023-09-16T00:39:28.95 | 0.6 | undecidable | manual | P | 295 | 85.6476 | 50 | 0.28 | 42 |
GU.POPM.HHZ. | 2023-09-16T00:39:26.01 | 0.6 | undecidable | manual | P | 99 | 66.8775 | 50 | 0.24 | 44 |
GU.GORR.HHZ. | 2023-09-16T00:39:26.19 | 0.3 | undecidable | manual | P | 316 | 71.9724 | 50 | -0.37 | 63 |
MN.VLC.HHZ. | 2023-09-16T00:39:25.78 | 0.6 | undecidable | manual | S | 87 | 36.4413 | 50 | -0.61 | 42 |
GU.GSCL.HHZ. | 2023-09-16T00:39:24.94 | 1.0 | positive | manual | P | 66 | 57.0984 | 50 | 0.67 | 20 |
GU.MAIM.HHZ. | 2023-09-16T00:39:23.65 | 0.6 | positive | manual | P | 120 | 51.7038 | 50 | 0.22 | 45 |
GU.CARD.HHZ. | 2023-09-16T00:39:22.67 | 0.1 | positive | manual | P | 106 | 46.0206 | 50 | 0.12 | 93 |
MN.VLC.HHZ. | 2023-09-16T00:39:21.09 | 0.3 | undecidable | manual | P | 87 | 36.4413 | 50 | 0.01 | 73 |
GU.GRAM.HHZ. | 2023-09-16T00:39:21.37 | 0.3 | positive | manual | P | 16 | 39.8268 | 50 | -0.24 | 69 |
GU.FIVI.HNE. | 2023-09-16T00:39:20.84 | 0.6 | undecidable | manual | S | 56 | 18.9699 | 116 | -0.31 | 47 |
GU.EQUI.HHZ. | 2023-09-16T00:39:20.85 | 0.3 | undecidable | manual | S | 82 | 17.9709 | 117 | 0 | 75 |
GU.FIVI.HNE. | 2023-09-16T00:39:18.18 | 0.1 | undecidable | manual | P | 56 | 18.9699 | 116 | 0.13 | 98 |
IV.PLMA.HHZ. | 2023-09-16T00:39:18.83 | 0.6 | undecidable | manual | S | 210 | 12.0768 | 128 | -0.3 | 48 |
GU.EQUI.HHZ. | 2023-09-16T00:39:17.95 | 1.0 | negative | manual | P | 82 | 17.9709 | 117 | 0.07 | 25 |
IV.PLMA.HHZ. | 2023-09-16T00:39:16.95 | 0.1 | undecidable | manual | P | 210 | 12.0768 | 128 | 0.06 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.EQUI.HHN. | ML:1.2 | 0.0001285 | 1.68 | AML | other | m | 2023-09-16T00:39:21.96 |
GU.EQUI.HHE. | ML:0.9 | 0.00006840000000000001 | 0.24 | AML | other | m | 2023-09-16T00:39:21.05 |
MN.VLC.HHN. | ML:1.0 | 0.00003485 | 0.14 | AML | other | m | 2023-09-16T00:39:26.24 |
MN.VLC.HHE. | ML:1.0 | 0.0000388 | 0.72 | AML | other | m | 2023-09-16T00:39:26.23 |
GU.GRAM.HHE. | ML:1.3 | 0.00006505 | 1.12 | AML | other | m | 2023-09-16T00:39:27.24 |
GU.GRAM.HHN. | ML:1.2 | 0.00005945 | 1.8 | AML | other | m | 2023-09-16T00:39:28.93 |
GU.CARD.HHN. | ML:1.6 | 0.0001295 | 0.36 | AML | other | m | 2023-09-16T00:39:29.21 |
GU.CARD.HHE. | ML:1.7 | 0.0001395 | 0.3 | AML | other | m | 2023-09-16T00:39:29.15 |
GU.MAIM.HHN. | ML:1.0 | 0.000027450000000000003 | 0.14 | AML | other | m | 2023-09-16T00:39:30.43 |
GU.MAIM.HHE. | ML:1.0 | 0.00002305 | 1.12 | AML | other | m | 2023-09-16T00:39:30.40 |
GU.GSCL.HHE. | ML:1.2 | 0.00003525 | 1.38 | AML | other | m | 2023-09-16T00:39:32.17 |
GU.GSCL.HHN. | ML:1.1 | 0.000027799999999999998 | 0.22 | AML | other | m | 2023-09-16T00:39:33.29 |
GU.POPM.HHN. | ML:1.3 | 0.0000362 | 0.34 | AML | other | m | 2023-09-16T00:39:35.28 |
GU.POPM.HHE. | ML:1.3 | 0.0000333 | 1.16 | AML | other | m | 2023-09-16T00:39:35.36 |
GU.GORR.HHE. | ML:1.3 | 0.00002925 | 0.88 | AML | other | m | 2023-09-16T00:39:36.54 |
GU.GORR.HHN. | ML:1.5 | 0.00004955 | 0.18 | AML | other | m | 2023-09-16T00:39:37.16 |