A magnitude ML 1.5 (controlled explosion) earthquake occured in region: Costa Ligure orientale (La Spezia), on
and geographic coordinates (lat, lon) 44.0070, 9.8270 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 |
---|---|---|---|---|
Portovenere | SP | 6 | 3630 | 3630 |
Lerici | SP | 10 | 10228 | 13858 |
La Spezia | SP | 11 | 93959 | 107817 |
Ameglia | SP | 12 | 4365 | 112182 |
Riomaggiore | SP | 13 | 1576 | 113758 |
Arcola | SP | 14 | 10607 | 124365 |
Vezzano Ligure | SP | 16 | 7356 | 131721 |
Sarzana | SP | 16 | 21976 | 153697 |
Riccò del Golfo di Spezia | SP | 17 | 3698 | 157395 |
Follo | SP | 18 | 6337 | 163732 |
Vernazza | SP | 18 | 848 | 164580 |
Castelnuovo Magra | SP | 19 | 8415 | 172995 |
Santo Stefano di Magra | SP | 19 | 9360 | 182355 |
Ortonovo | SP | 19 | 8277 | 190632 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.5 | 2022-04-06 14:46:10 |
44.0068 | 9.8268 | 0 | 2022-07-08 12:33:42 |
Bollettino Sismico Italiano INGV | 102866321 |
Reviewed Rev100 |
ML 1.6 | 2022-04-06 14:46:11 |
44.0207 | 9.826 | 10 | 2022-04-06 15:01:09 |
Sala Sismica INGV-Roma | 102842071 |
Field | Value |
---|---|
Time (UTC) | 2022-04-06 14:46:10 ± 0.19 |
Latitude | 44.0068 ± 0.0135 |
Longitude | 9.8268 ± 0.0125 |
Depth (km) | 0 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | controlled explosion |
Origin ID | 102866321 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1700 |
Semi-minor axis of confidence ellipse (meter) | 710 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 30 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1700.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 188 |
Number of associated phases, regardless of their use for origin computation | 38 |
Number of defining phases | 13 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.29 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.91011 |
Number of stations at which the event was observed | 36 |
Number of stations from which data was used for origin computation | 13 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.3 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 102866321 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2022-04-07 09:57:24 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 18 |
Type of magnitude | ML |
Reference to an origin | 102842071 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2022-04-06 15:01:09 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
OT.OT17.EHZ. | 2022-04-06T14:48:09.82 | 3.0 | undecidable | manual | Sn | -4.39 | 0 | |||
IV.VBKN.HHE. | 2022-04-06T14:48:07.67 | 3.0 | undecidable | manual | Sn | -5.84 | 0 | |||
IV.INTR.HHZ. | 2022-04-06T14:48:01.92 | 3.0 | undecidable | manual | Sg | 14.45 | 0 | |||
IV.VIVA.HHN. | 2022-04-06T14:47:53.73 | 3.0 | undecidable | manual | Sg | 17.65 | 0 | |||
IV.VVLD.HHZ. | 2022-04-06T14:47:43.76 | 3.0 | undecidable | manual | Sn | -1.7 | 0 | |||
CR.ZAG.BHZ. | 2022-04-06T14:47:41.12 | 3.0 | negative | manual | Pg | 20.299999 | 0 | |||
IX.MNT3.EHZ.02 | 2022-04-06T14:47:39.45 | 3.0 | positive | manual | Pg | 15.31 | 0 | |||
OT.OT17.EHN. | 2022-04-06T14:47:31.67 | 3.0 | undecidable | manual | Pg | 11.48 | 0 | |||
ST.ZIAN.EHN. | 2022-04-06T14:47:31.86 | 3.0 | undecidable | manual | Sg | 9.15 | 0 | |||
IV.CRTC.HHN. | 2022-04-06T14:47:28.11 | 3.0 | undecidable | manual | Sg | 14.32 | 0 | |||
IV.VBKN.HHN. | 2022-04-06T14:47:27.58 | 3.0 | negative | manual | Pn | 7.78 | 0 | |||
IV.SAP2.EHN. | 2022-04-06T14:47:27.20 | 3.0 | undecidable | manual | Sn | 0.41 | 0 | |||
IV.CTI.HHZ. | 2022-04-06T14:47:20.57 | 3.0 | undecidable | manual | Sn | 1.92 | 0 | |||
IV.TREM.HHZ. | 2022-04-06T14:47:15.80 | 3.0 | positive | manual | Pn | -2.75 | 0 | |||
OX.MARN.HHN. | 2022-04-06T14:47:15.04 | 3.0 | undecidable | manual | Sg | 8.87 | 0 | |||
IV.PE3.EHN. | 2022-04-06T14:47:11.60 | 3.0 | undecidable | manual | Sn | 4.31 | 0 | |||
IV.RMP.HHN. | 2022-04-06T14:47:07.14 | 3.0 | negative | manual | Pg | 9.45 | 0 | |||
IV.VOBA.EHE. | 2022-04-06T14:46:56.44 | 3.0 | undecidable | manual | Sn | -4.98 | 0 | |||
IV.OPPE.HHE. | 2022-04-06T14:46:55.69 | 3.0 | undecidable | manual | Sn | -3.43 | 0 | |||
IV.IMOL.HNZ. | 2022-04-06T14:46:53.42 | 3.0 | undecidable | manual | Sn | -0.81 | 0 | |||
IV.MBAL.EHZ. | 2022-04-06T14:46:45.43 | 3.0 | negative | manual | Pg | 4.27 | 0 | |||
IV.ZEN8.EHZ. | 2022-04-06T14:46:45.22 | 3.0 | positive | manual | Pg | 5.28 | 0 | |||
IV.FOSV.EHZ. | 2022-04-06T14:46:44.59 | 3.0 | undecidable | manual | Pn | -2.01 | 0 | |||
IV.VARE.HHZ. | 2022-04-06T14:46:40.54 | 3.0 | positive | manual | Pn | -3.09 | 0 | |||
GU.CANO.HHZ. | 2022-04-06T14:46:32.19 | 3.0 | positive | manual | P | -0.09 | 0 | |||
IV.MPPT.EHZ. | 2022-04-06T14:46:28.97 | 0.3 | undecidable | manual | P | 93 | 101.0211 | 50 | 0.35 | 63 |
IV.BOB.HNE. | 2022-04-06T14:46:26.99 | 0.3 | undecidable | manual | P | 341 | 89.6436 | 50 | 0.13 | 68 |
GU.RNCA.HHZ. | 2022-04-06T14:46:26.94 | 0.3 | undecidable | manual | P | 307 | 86.5467 | 50 | 0.55 | 62 |
GU.GORR.HHN. | 2022-04-06T14:46:24.73 | 0.3 | undecidable | manual | P | 328 | 78.9654 | 50 | -0.49 | 64 |
GU.POPM.HHZ. | 2022-04-06T14:46:24.34 | 0.3 | undecidable | manual | P | 86 | 74.2701 | 50 | -0.16 | 69 |
IV.PII.HHZ. | 2022-04-06T14:46:22.81 | 0.3 | undecidable | manual | P | 119 | 64.1913 | 50 | -0.13 | 71 |
IV.BDI.HHZ. | 2022-04-06T14:46:22.16 | 0.3 | undecidable | manual | P | 84 | 61.5939 | 50 | -0.39 | 67 |
GU.MAIM.HHZ. | 2022-04-06T14:46:21.11 | 0.1 | undecidable | manual | P | 101 | 54.1014 | 90 | 0.05 | 98 |
GU.GRAM.HHZ. | 2022-04-06T14:46:21.39 | 0.1 | undecidable | manual | P | 19 | 56.8986 | 90 | -0.23 | 94 |
GU.CARD.HHZ. | 2022-04-06T14:46:20.66 | 0.3 | undecidable | manual | P | 87 | 52.3032 | 90 | -0.05 | 74 |
GU.SARM.EHN. | 2022-04-06T14:46:20.05 | 0.3 | undecidable | manual | P | 67 | 49.8168 | 90 | -0.15 | 73 |
IV.MSSA.HHZ. | 2022-04-06T14:46:18.64 | 0.1 | undecidable | manual | P | 324 | 42.2244 | 90 | -0.05 | 100 |
GU.EQUI.HHZ. | 2022-04-06T14:46:17.07 | 0.1 | undecidable | manual | P | 56 | 31.4463 | 90 | 0.55 | 91 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MSSA.HHE. | ML:2.3 | 0.0006855 | 0.1 | AML | other | m | 2022-04-06T14:46:19.45 |
IV.MSSA.HHN. | ML:2.2 | 0.000527 | 0.1 | AML | other | m | 2022-04-06T14:46:19.85 |
GU.CARD.HHE. | ML:1.6 | 0.0000997 | 0.1 | AML | other | m | 2022-04-06T14:46:24.25 |
GU.MAIM.HHE. | ML:1.3 | 0.000044649999999999994 | 0.9 | AML | other | m | 2022-04-06T14:46:24.17 |
IV.PII.HHE. | ML:1.5 | 0.00006475 | 1.14 | AML | other | m | 2022-04-06T14:46:25.66 |
GU.GRAM.HHE. | ML:1.6 | 0.000078 | 0.52 | AML | other | m | 2022-04-06T14:46:26.09 |
GU.POPM.HHN. | ML:1.6 | 0.00005264999999999999 | 0.26 | AML | other | m | 2022-04-06T14:46:27.54 |
GU.MAIM.HHN. | ML:1.2 | 0.000037250000000000004 | 1.46 | AML | other | m | 2022-04-06T14:46:32.12 |
GU.CARD.HHN. | ML:1.7 | 0.000132 | 0.1 | AML | other | m | 2022-04-06T14:46:33.30 |
IV.PII.HHN. | ML:1.4 | 0.0000514 | 1.06 | AML | other | m | 2022-04-06T14:46:36.72 |
GU.POPM.HHE. | ML:1.5 | 0.0000519 | 0.58 | AML | other | m | 2022-04-06T14:46:37.98 |
GU.GRAM.HHN. | ML:1.6 | 0.00008135000000000001 | 0.84 | AML | other | m | 2022-04-06T14:46:44.89 |
IV.BDI.HHN. | ML:1.3 | 0.00003974999999999999 | 0.92 | AML | other | m | 2022-04-06T14:46:48.50 |
IV.BDI.HHE. | ML:1.2 | 0.0000331 | 0.9 | AML | other | m | 2022-04-06T14:46:48.05 |