A magnitude ML 1.6 earthquake occured in region: 2 km E Forte dei Marmi (LU), on
and geographic coordinates (lat, lon) 43.9640, 10.1960 at 8 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 |
---|---|---|---|---|
Forte dei Marmi | LU | 2 | 7510 | 7510 |
Pietrasanta | LU | 3 | 24007 | 31517 |
Seravezza | LU | 5 | 13073 | 44590 |
Montignoso | MS | 6 | 10323 | 54913 |
Stazzema | LU | 9 | 3193 | 58106 |
Massa | MS | 9 | 69479 | 127585 |
Camaiore | LU | 9 | 32513 | 160098 |
Viareggio | LU | 12 | 62467 | 222565 |
Carrara | MS | 15 | 63133 | 285698 |
Massarosa | LU | 16 | 22471 | 308169 |
Pescaglia | LU | 17 | 3526 | 311695 |
Fabbriche di Vergemoli | LU | 18 | 768 | 312463 |
Vagli Sotto | LU | 18 | 939 | 313402 |
Ortonovo | SP | 18 | 8277 | 321679 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.6 | 2021-02-27 13:25:28 |
43.9643 | 10.1955 | 8 | 2021-07-12 16:55:00 |
Bollettino Sismico Italiano INGV | 87667961 |
Reviewed Rev100 |
ML 1.6 | 2021-02-27 13:25:28 |
43.9625 | 10.1975 | 8 | 2021-02-27 13:35:10 |
Sala Sismica INGV-Roma | 87541291 |
Field | Value |
---|---|
Time (UTC) | 2021-02-27 13:25:28 ± 0.17 |
Latitude | 43.9643 ± 0.0072 |
Longitude | 10.1955 ± 0.0100 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 87667961 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 912 |
Semi-minor axis of confidence ellipse (meter) | 528 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 37 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 910.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 152 |
Number of associated phases, regardless of their use for origin computation | 21 |
Number of defining phases | 21 |
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) | 0.20415 |
Epicentral distance of station farthest from the epicenter (degree) | 0.76712 |
Number of stations at which the event was observed | 13 |
Number of stations from which data was used for origin computation | 13 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 87541291 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-27 13:35:10 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 87667961 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-03-03 13:31:40 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
GU.POPM.HHZ. | 2021-02-27T13:25:43.49 | 0.6 | undecidable | manual | S | 79 | 45.621 | 50 | -0.09 | 47 |
IV.MAGO.CHE. | 2021-02-27T13:25:43.45 | 0.3 | undecidable | manual | P | 154 | 85.1481 | 50 | 0.29 | 63 |
IV.PII.HHZ. | 2021-02-27T13:25:40.81 | 0.6 | undecidable | manual | S | 135 | 37.629 | 50 | -0.63 | 42 |
GU.GRAM.HHZ. | 2021-02-27T13:25:39.42 | 0.3 | undecidable | manual | P | 350 | 59.2962 | 50 | 0.26 | 67 |
IV.BDI.HHZ. | 2021-02-27T13:25:39.74 | 0.6 | undecidable | manual | S | 71 | 33.744 | 103 | -0.45 | 45 |
IV.MSSA.HHE. | 2021-02-27T13:25:39.87 | 0.3 | undecidable | manual | P | 306 | 66.5778 | 50 | -0.43 | 63 |
GU.SARM.EHZ. | 2021-02-27T13:25:38.49 | 0.6 | undecidable | manual | S | 34 | 29.3484 | 105 | -0.22 | 47 |
GU.GSCL.HHE. | 2021-02-27T13:25:38.75 | 0.6 | undecidable | manual | P | 36 | 53.0025 | 50 | 0.55 | 42 |
MN.VLC.HHZ. | 2021-02-27T13:25:37.75 | 0.3 | undecidable | manual | S | 35 | 26.4513 | 106 | 0.01 | 74 |
GU.POPM.HHZ. | 2021-02-27T13:25:37.37 | 0.3 | undecidable | manual | P | 79 | 45.621 | 50 | 0.3 | 68 |
GU.MAIM.HHZ. | 2021-02-27T13:25:36.51 | 0.6 | undecidable | manual | S | 103 | 24.3534 | 108 | -0.52 | 45 |
GU.CARD.HHZ. | 2021-02-27T13:25:36.75 | 0.3 | undecidable | manual | S | 73 | 23.8539 | 108 | -0.13 | 73 |
IV.PII.HHZ. | 2021-02-27T13:25:35.50 | 0.1 | negative | manual | P | 135 | 37.629 | 50 | -0.33 | 91 |
GU.EQUI.HHZ. | 2021-02-27T13:25:35.83 | 0.3 | undecidable | manual | S | 351 | 22.6551 | 109 | -0.64 | 64 |
IV.BDI.HHZ. | 2021-02-27T13:25:35.14 | 0.3 | undecidable | manual | P | 71 | 33.744 | 103 | 0.03 | 73 |
GU.SARM.EHZ. | 2021-02-27T13:25:34.47 | 0.3 | undecidable | manual | P | 34 | 29.3484 | 105 | 0.21 | 71 |
GU.FIVI.HNZ. | 2021-02-27T13:25:34.62 | 0.3 | undecidable | manual | P | 350 | 30.9468 | 104 | 0.04 | 73 |
MN.VLC.HHZ. | 2021-02-27T13:25:34.05 | 0.1 | positive | manual | P | 35 | 26.4513 | 106 | 0.35 | 92 |
GU.CARD.HHZ. | 2021-02-27T13:25:33.50 | 0.1 | positive | manual | P | 73 | 23.8539 | 108 | 0.29 | 94 |
GU.MAIM.HHZ. | 2021-02-27T13:25:33.65 | 0.1 | undecidable | manual | P | 103 | 24.3534 | 108 | 0.36 | 93 |
GU.EQUI.HHZ. | 2021-02-27T13:25:32.96 | 0.1 | positive | manual | P | 351 | 22.6551 | 109 | -0.01 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
GU.EQUI.HHE. | ML:1.4 | 0.000169517 | 0.1024 | AML | other | m | 2021-02-27T13:25:36.34 |
GU.EQUI.HHN. | ML:1.0 | 0.000070084265 | 0.1408 | AML | other | m | 2021-02-27T13:25:36.77 |
GU.CARD.HHN. | ML:2.0 | 0.0006554999999999999 | 1.88 | AML | other | m | 2021-02-27T13:25:36.97 |
GU.CARD.HHE. | ML:1.8 | 0.0004285 | 0.08 | AML | other | m | 2021-02-27T13:25:37.08 |
MN.VLC.HHE. | ML:1.3 | 0.0001200079 | 0.0576 | AML | other | m | 2021-02-27T13:25:38.02 |
MN.VLC.HHN. | ML:1.6 | 0.00021500000000000002 | 0.1 | AML | other | m | 2021-02-27T13:25:38.00 |
MN.VLC.HNN. | ML:1.6 | 0.0002051062 | 1.8784 | AML | other | m | 2021-02-27T13:25:38.00 |
MN.VLC.HNE. | ML:1.3 | 0.000106333205 | 0.1216 | AML | other | m | 2021-02-27T13:25:38.26 |
IV.BDI.HHN. | ML:1.3 | 0.00009609999999999999 | 1.88 | AML | other | m | 2021-02-27T13:25:40.98 |
IV.PII.HHN. | ML:1.8 | 0.00021349999999999999 | 1.72 | AML | other | m | 2021-02-27T13:25:41.09 |
IV.PII.HHE. | ML:1.8 | 0.00021999999999999998 | 0.24 | AML | other | m | 2021-02-27T13:25:41.13 |
IV.BDI.HHE. | ML:1.1 | 0.000055985555 | 0.16 | AML | other | m | 2021-02-27T13:25:44.37 |
GU.GRAM.HHN. | ML:1.8 | 0.00013970725 | 1.7824 | AML | other | m | 2021-02-27T13:25:49.00 |
GU.GRAM.HHE. | ML:1.7 | 0.000102499485 | 0.2368 | AML | other | m | 2021-02-27T13:25:49.78 |