A magnitude ML 1.2 earthquake occured in region: 8 km S Livorno (LI), on
and geographic coordinates (lat, lon) 43.4800, 10.3340 at 11 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 |
---|---|---|---|---|
Livorno | LI | 8 | 159219 | 159219 |
Rosignano Marittimo | LI | 14 | 31394 | 190613 |
Orciano Pisano | PI | 14 | 647 | 191260 |
Collesalvetti | LI | 17 | 16827 | 208087 |
Fauglia | PI | 18 | 3682 | 211769 |
Santa Luce | PI | 19 | 1684 | 213453 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.0
ML 1.2 |
2011-08-21 23:33:08 |
43.48 | 10.334 | 11 | 2014-10-21 12:27:13 |
Bollettino Sismico Italiano INGV | 1275649 |
Field | Value |
---|---|
Time (UTC) | 2011-08-21 23:33:08 ± 0.49 |
Latitude | 43.4800 ± 0.0072 |
Longitude | 10.3340 ± 0.0124 |
Depth (km) | 11 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-SISPICK |
Event type | earthquake |
Origin ID | 1275649 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 999 |
Semi-minor axis of confidence ellipse (meter) | 145 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 75 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1280.6 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 130 |
Number of associated phases, regardless of their use for origin computation | 16 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.5 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.67989 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.3 |
Num. used stations | |
Type of magnitude | ML |
Reference to an origin | 1275649 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-06 01:12:19 |
Field | Value |
---|---|
Value | 2.0 |
Uncertainty | 0.2 |
Num. used stations | |
Type of magnitude | Md |
Reference to an origin | 1275649 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-06 01:12:19 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
MN.VLC.HHN. | 2011-08-21T23:33:31.23 | 0.3 | undecidable | manual | Sg | 3 | 75.4689 | 0.545 | 83 | |
IV.SEI.SHN. | 2011-08-21T23:33:29.45 | 10.0 | undecidable | manual | Pg | 0 | 0 | 0 | ||
IV.BDI.HHE. | 2011-08-21T23:33:28.30 | 0.3 | undecidable | manual | Sg | 18 | 67.9764 | -0.375 | 88 | |
IV.CRMI.HHE. | 2011-08-21T23:33:27.84 | 0.3 | undecidable | manual | Sg | 56 | 61.5939 | 0.875 | 75 | |
IV.TRIF.HHE. | 2011-08-21T23:33:27.26 | 0.3 | undecidable | manual | Sg | 131 | 61.2942 | 0.376 | 89 | |
GU.MAIM.HHE. | 2011-08-21T23:33:23.10 | 0.3 | undecidable | manual | Sg | 15 | 49.8168 | -0.723 | 82 | |
MN.VLC.HHN. | 2011-08-21T23:33:21.06 | 0.3 | undecidable | manual | Pg | 3 | 75.4689 | -0.053 | 93 | |
IV.GROG.HHZ. | 2011-08-21T23:33:20.23 | 0.3 | undecidable | manual | Sg | 261 | 36.0417 | 0.064 | 100 | |
IV.BDI.HHE. | 2011-08-21T23:33:19.80 | 0.3 | undecidable | manual | Pg | 18 | 67.9764 | -0.158 | 93 | |
IV.CRE.HHE. | 2011-08-21T23:33:19.00 | 10.0 | undecidable | manual | Pg | 0 | 0 | 0 | ||
IV.SASS.HHE. | 2011-08-21T23:33:19.94 | 0.3 | undecidable | manual | Sg | 130 | 37.8288 | -0.692 | 84 | |
IV.CRMI.HHE. | 2011-08-21T23:33:19.21 | 0.3 | undecidable | manual | Pg | 56 | 61.5939 | 0.239 | 92 | |
IV.TRIF.HHE. | 2011-08-21T23:33:18.99 | 0.3 | undecidable | manual | Pg | 131 | 61.2942 | 0.071 | 95 | |
GU.MAIM.HHE. | 2011-08-21T23:33:17.05 | 0.3 | undecidable | manual | Pg | 15 | 49.8168 | -0.11 | 97 | |
IV.SASS.HHE. | 2011-08-21T23:33:15.16 | 0.3 | undecidable | manual | Pg | 130 | 37.8288 | -0.156 | 98 | |
IV.GROG.HHZ. | 2011-08-21T23:33:15.20 | 0.3 | undecidable | manual | Pg | 261 | 36.0417 | 0.161 | 98 |