A magnitude ML 1.0 (quarry blast) earthquake occured in region: 3 km N Vaglia (FI), on
and geographic coordinates (lat, lon) 43.9300, 11.2770 at 0 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
Event type: quarry blast.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 |
---|---|---|---|---|
Vaglia | FI | 3 | 5073 | 5073 |
Scarperia e San Piero | FI | 5 | 12217 | 17290 |
Barberino di Mugello | FI | 9 | 10836 | 28126 |
Borgo San Lorenzo | FI | 9 | 18211 | 46337 |
Calenzano | FI | 11 | 17489 | 63826 |
Sesto Fiorentino | FI | 12 | 48958 | 112784 |
Vaiano | PO | 13 | 9895 | 122679 |
Fiesole | FI | 14 | 13969 | 136648 |
Vicchio | FI | 15 | 8044 | 144692 |
Prato | PO | 15 | 191150 | 335842 |
Campi Bisenzio | FI | 16 | 46166 | 382008 |
Vernio | PO | 17 | 6060 | 388068 |
Cantagallo | PO | 17 | 3105 | 391173 |
Firenze | FI | 18 | 382808 | 773981 |
Montemurlo | PO | 19 | 18456 | 792437 |
Bagno a Ripoli | FI | 20 | 25611 | 818048 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.0 | 2021-03-26 08:11:53 |
43.9297 | 11.2772 | 1 | 2021-07-12 16:55:05 |
Bollettino Sismico Italiano INGV | 88846421 |
Reviewed Rev100 |
ML 1.2 | 2021-03-26 08:11:52 |
43.9322 | 11.2457 | 19 | 2021-03-26 08:19:34 |
Sala Sismica INGV-Roma | 88483261 |
Field | Value |
---|---|
Time (UTC) | 2021-03-26 08:11:53 ± 0.12 |
Latitude | 43.9297 ± 0.0090 |
Longitude | 11.2772 ± 0.0075 |
Depth (km) | 1 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | quarry blast |
Origin ID | 88846421 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 990 |
Semi-minor axis of confidence ellipse (meter) | 590 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 19 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 990.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 163 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 7 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.22 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.28239 |
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 | 1.2 |
Uncertainty | 0.3 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 88483261 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-03-26 08:19:34 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.3 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 88846421 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-04-06 17:00:39 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.BRSN.EHZ. | 2021-03-26T08:12:20.62 | 3.0 | undecidable | manual | S | 0.28 | 0 | |||
IV.PESA.HHZ. | 2021-03-26T08:12:15.16 | 3.0 | undecidable | manual | P | -1.43 | 0 | |||
GU.CARD.HHZ. | 2021-03-26T08:12:06.46 | 3.0 | undecidable | manual | P | 0.55 | 0 | |||
IV.VISG.HHE. | 2021-03-26T08:11:59.41 | 0.3 | undecidable | manual | P | 23 | 31.3464 | 91 | -0.21 | 71 |
IV.RINC.HHE. | 2021-03-26T08:11:58.49 | 0.3 | undecidable | manual | P | 100 | 26.751 | 91 | -0.21 | 71 |
IV.RUFI.EHZ. | 2021-03-26T08:11:57.57 | 0.1 | undecidable | manual | P | 119 | 21.1677 | 91 | 0 | 100 |
IV.RONT.HHZ. | 2021-03-26T08:11:56.60 | 0.3 | undecidable | manual | P | 60 | 14.2746 | 92 | 0.4 | 70 |
IV.MPPT.EHZ. | 2021-03-26T08:11:56.49 | 0.1 | undecidable | manual | P | 282 | 15.2736 | 92 | 0.1 | 99 |
IV.SEI.HHZ. | 2021-03-26T08:11:56.42 | 0.3 | undecidable | manual | P | 25 | 15.2736 | 92 | 0.03 | 75 |
IV.MOCL.EHZ. | 2021-03-26T08:11:55.49 | 0.3 | undecidable | manual | P | 317 | 11.3775 | 93 | -0.12 | 75 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MOCL.EHN. | ML:1.0 | 0.00014564624999999998 | 0.4416 | AML | other | m | 2021-03-26T08:12:00.02 |
IV.MPPT.EHN. | ML:0.8 | 0.0000702 | 0.3 | AML | other | m | 2021-03-26T08:12:00.13 |
IV.SEI.HHE. | ML:0.9 | 0.0000875 | 0.32 | AML | other | m | 2021-03-26T08:12:00.16 |
IV.RONT.HHE. | ML:1.2 | 0.00017943855 | 0.2816 | AML | other | m | 2021-03-26T08:12:00.48 |
IV.RONT.HHN. | ML:1.2 | 0.00019175255 | 0.3968 | AML | other | m | 2021-03-26T08:12:00.97 |
IV.MOCL.EHE. | ML:0.9 | 0.00011885311999999999 | 0.5184 | AML | other | m | 2021-03-26T08:12:01.28 |
IV.SEI.HHN. | ML:1.0 | 0.0001305036 | 0.4608 | AML | other | m | 2021-03-26T08:12:01.32 |
IV.MPPT.EHE. | ML:0.9 | 0.00010235770999999999 | 0.8448 | AML | other | m | 2021-03-26T08:12:06.00 |
IV.RUFI.EHE. | ML:0.4 | 0.0000218713285 | 1.04 | AML | other | m | 2021-03-26T08:12:08.43 |
IV.RUFI.EHN. | ML:0.6 | 0.000028254975 | 0.6432 | AML | other | m | 2021-03-26T08:12:10.36 |
GU.CARD.HHE. | ML:1.4 | 0.00005230108 | 0.064 | AML | other | m | 2021-03-26T08:12:10.23 |
GU.CARD.HHN. | ML:1.3 | 0.000036334185 | 0.0448 | AML | other | m | 2021-03-26T08:12:13.36 |