A magnitude ML 1.4 earthquake occured in region: 2 km SW Villafranca in Lunigiana (MS), on
and geographic coordinates (lat, lon) 44.2780, 9.9410 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 |
---|---|---|---|---|
Villafranca in Lunigiana | MS | 2 | 4770 | 4770 |
Tresana | MS | 4 | 2044 | 6814 |
Mulazzo | MS | 6 | 2424 | 9238 |
Filattiera | MS | 6 | 2309 | 11547 |
Bagnone | MS | 6 | 1887 | 13434 |
Aulla | MS | 8 | 11263 | 24697 |
Podenzana | MS | 8 | 2180 | 26877 |
Licciana Nardi | MS | 8 | 4949 | 31826 |
Calice al Cornoviglio | SP | 9 | 1138 | 32964 |
Bolano | SP | 11 | 7813 | 40777 |
Pontremoli | MS | 12 | 7357 | 48134 |
Santo Stefano di Magra | SP | 13 | 9360 | 57494 |
Follo | SP | 14 | 6337 | 63831 |
Rocchetta di Vara | SP | 15 | 703 | 64534 |
Fivizzano | MS | 15 | 7925 | 72459 |
Zignago | SP | 16 | 532 | 72991 |
Comano | MS | 16 | 714 | 73705 |
Vezzano Ligure | SP | 16 | 7356 | 81061 |
Zeri | MS | 16 | 1094 | 82155 |
Beverino | SP | 17 | 2429 | 84584 |
Fosdinovo | MS | 17 | 4883 | 89467 |
Brugnato | SP | 18 | 1270 | 90737 |
Sarzana | SP | 18 | 21976 | 112713 |
Arcola | SP | 18 | 10607 | 123320 |
Borghetto di Vara | SP | 18 | 938 | 124258 |
Riccò del Golfo di Spezia | SP | 20 | 3698 | 127956 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.4 | 2021-04-24 00:24:01 |
44.2783 | 9.9412 | 9 | 2021-04-24 00:34:45 |
Sala Sismica INGV-Roma | 89419921 |
Field | Value |
---|---|
Time (UTC) | 2021-04-24 00:24:01 ± 0.09 |
Latitude | 44.2783 ± 0.0045 |
Longitude | 9.9412 ± 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 | 89419921 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 545 |
Semi-minor axis of confidence ellipse (meter) | 436 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 211 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 550.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 82 |
Number of associated phases, regardless of their use for origin computation | 17 |
Number of defining phases | 17 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.26 |
Epicentral distance of station closest to the epicenter (degree) | 0.13850 |
Epicentral distance of station farthest from the epicenter (degree) | 0.60255 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.4 |
Uncertainty | 0.4 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 89419921 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-24 00:34:45 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.BOB.HHE. | 2021-04-24T00:24:22.61 | 0.6 | undecidable | manual | S | 324 | 66.8775 | 50 | 0.26 | 45 |
IV.BDI.HHZ. | 2021-04-24T00:24:19.38 | 0.6 | undecidable | manual | S | 114 | 57.2982 | 50 | -0.41 | 44 |
GU.CARD.HHZ. | 2021-04-24T00:24:18.01 | 0.6 | undecidable | manual | S | 123 | 51.3153 | 50 | -0.19 | 47 |
IV.BOB.HHE. | 2021-04-24T00:24:14.15 | 0.3 | undecidable | manual | P | 324 | 66.8775 | 50 | 0.63 | 61 |
IV.MSSA.HHZ. | 2021-04-24T00:24:13.14 | 0.6 | undecidable | manual | S | 277 | 33.9438 | 50 | -0.41 | 46 |
IV.BDI.HHZ. | 2021-04-24T00:24:12.05 | 1.0 | negative | manual | P | 114 | 57.2982 | 50 | 0.01 | 24 |
GU.CARD.HHZ. | 2021-04-24T00:24:11.14 | 0.6 | positive | manual | P | 123 | 51.3153 | 50 | 0.01 | 49 |
GU.GRAM.HHZ. | 2021-04-24T00:24:10.23 | 0.3 | undecidable | manual | S | 23 | 25.4523 | 108 | -0.55 | 68 |
IV.NEVI.HNE. | 2021-04-24T00:24:10.47 | 0.3 | undecidable | manual | P | 41 | 45.0216 | 50 | 0.31 | 69 |
IV.PLMA.HHZ. | 2021-04-24T00:24:10.71 | 0.6 | undecidable | manual | S | 195 | 26.2515 | 108 | -0.33 | 48 |
GU.EQUI.HHZ. | 2021-04-24T00:24:09.15 | 0.3 | undecidable | manual | S | 126 | 20.9679 | 112 | -0.14 | 75 |
IV.MSSA.HHZ. | 2021-04-24T00:24:08.34 | 0.3 | undecidable | manual | P | 277 | 33.9438 | 50 | -0.1 | 74 |
GU.FIVI.HNE. | 2021-04-24T00:24:07.92 | 0.3 | undecidable | manual | S | 106 | 15.3735 | 119 | 0.37 | 72 |
IV.PLMA.HHZ. | 2021-04-24T00:24:07.12 | 0.1 | undecidable | manual | P | 195 | 26.2515 | 108 | 0.13 | 99 |
GU.GRAM.HHZ. | 2021-04-24T00:24:06.70 | 0.1 | positive | manual | P | 23 | 25.4523 | 108 | -0.14 | 99 |
GU.FIVI.HNE. | 2021-04-24T00:24:05.16 | 0.1 | undecidable | manual | P | 106 | 15.3735 | 119 | 0.19 | 100 |
GU.EQUI.HHZ. | 2021-04-24T00:24:05.99 | 0.3 | positive | manual | P | 126 | 20.9679 | 112 | 0.01 | 77 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.PLMA.HHE. | ML:1.4 | 0.00014450000000000002 | 0.18 | AML | other | m | 2021-04-24T00:24:10.94 |
IV.PLMA.HHN. | ML:1.3 | 0.00012670000000000002 | 0.5 | AML | other | m | 2021-04-24T00:24:11.00 |
GU.GRAM.HHE. | ML:1.9 | 0.0004695 | 0.36 | AML | other | m | 2021-04-24T00:24:11.70 |
GU.GRAM.HHN. | ML:1.9 | 0.0005035 | 0.38 | AML | other | m | 2021-04-24T00:24:11.73 |
GU.EQUI.HHE. | ML:1.1 | 0.000095 | 1.12 | AML | other | m | 2021-04-24T00:24:12.81 |
GU.EQUI.HHN. | ML:0.7 | 0.00003372442000000001 | 1.04 | AML | other | m | 2021-04-24T00:24:12.40 |
IV.MSSA.HHN. | ML:2.1 | 0.0005124999999999999 | 0.42 | AML | other | m | 2021-04-24T00:24:13.68 |
IV.MSSA.HHE. | ML:2.2 | 0.0006374999999999999 | 0.9 | AML | other | m | 2021-04-24T00:24:13.77 |
IV.BDI.HHN. | ML:1.1 | 0.000030405935000000002 | 5.46 | AML | other | m | 2021-04-24T00:24:21.74 |
GU.CARD.HHN. | ML:1.3 | 0.000047832529999999995 | 1 | AML | other | m | 2021-04-24T00:24:21.42 |
IV.BDI.HHE. | ML:1.2 | 0.00003325 | 0.82 | AML | other | m | 2021-04-24T00:24:24.45 |
GU.CARD.HHE. | ML:1.2 | 0.000038402345000000006 | 0.22 | AML | other | m | 2021-04-24T00:24:20.77 |