A magnitude Md 2.1 earthquake occured in region: 5 km S Montelupo Fiorentino (FI), on
and geographic coordinates (lat, lon) 43.6840, 11.0150 at 10 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 |
---|---|---|---|---|
Montelupo Fiorentino | FI | 5 | 14098 | 14098 |
Montespertoli | FI | 7 | 13537 | 27635 |
Empoli | FI | 7 | 48109 | 75744 |
Capraia e Limite | FI | 7 | 7670 | 83414 |
Castelfiorentino | FI | 9 | 17504 | 100918 |
Lastra a Signa | FI | 12 | 20156 | 121074 |
Signa | FI | 13 | 19179 | 140253 |
San Miniato | PI | 13 | 27934 | 168187 |
Vinci | FI | 14 | 14604 | 182791 |
Cerreto Guidi | FI | 14 | 10870 | 193661 |
San Casciano in Val di Pesa | FI | 14 | 17062 | 210723 |
Carmignano | PO | 15 | 14450 | 225173 |
Poggio a Caiano | PO | 15 | 10007 | 235180 |
Certaldo | FI | 15 | 16121 | 251301 |
Scandicci | FI | 16 | 50609 | 301910 |
Montaione | FI | 17 | 3700 | 305610 |
Gambassi Terme | FI | 17 | 4870 | 310480 |
Fucecchio | FI | 17 | 23618 | 334098 |
Lamporecchio | PT | 18 | 7508 | 341606 |
Campi Bisenzio | FI | 18 | 46166 | 387772 |
Quarrata | PT | 19 | 26190 | 413962 |
Tavarnelle Val di Pesa | FI | 19 | 7800 | 421762 |
Santa Croce sull'Arno | PI | 19 | 14601 | 436363 |
Larciano | PT | 19 | 6394 | 442757 |
Impruneta | FI | 19 | 14615 | 457372 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.1
M 2.3 |
1991-05-21 03:53:29 |
43.684 | 11.015 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 141599 |
Field | Value |
---|---|
Time (UTC) | 1991-05-21 03:53:29 ± 0.222 |
Latitude | 43.6840 ± 0.0209 |
Longitude | 11.0150 ± 0.0113 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 141599 |
Field | Value |
---|---|
Preferred uncertainty description | horizontal uncertainty |
Semi-major axis of confidence ellipse (meter) | |
Semi-minor axis of confidence ellipse (meter) | |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 2490.3 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 181 |
Number of associated phases, regardless of their use for origin computation | 11 |
Number of defining phases | 11 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.00170 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00607 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 2.1 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | Md |
Reference to an origin | 141599 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:12:11 |
Field | Value |
---|---|
Value | 2.3 |
Uncertainty | |
Num. used stations | |
Type of magnitude | M |
Reference to an origin | 141599 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 09:35:22 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.SFI.Z. | 1991-05-21T03:53:52.12 | 10.0 | undecidable | manual | SG | 69 | 0.6327 | -0.3 | 0.4 | |
--.MME.Z. | 1991-05-21T03:53:50.24 | 10.0 | undecidable | manual | SG | 336 | 0.5439 | 0.45 | 0.3 | |
--.BDI.Z. | 1991-05-21T03:53:46.18 | 10.0 | undecidable | manual | SG | 321 | 0.4773 | -1.23 | 0 | |
--.CRE.Z. | 1991-05-21T03:53:43.85 | 10.0 | undecidable | manual | PG | 95 | 0.6771 | 0.17 | 1.3 | |
--.PII.Z. | 1991-05-21T03:53:42.77 | 10.0 | undecidable | manual | SG | 276 | 0.3552 | -0.58 | 0.2 | |
--.SFI.Z. | 1991-05-21T03:53:42.44 | 10.0 | undecidable | manual | PG | 69 | 0.6327 | -0.5 | 0.7 | |
--.MME.Z. | 1991-05-21T03:53:41.77 | 10.0 | undecidable | manual | PG | 336 | 0.5439 | 0.35 | 1.1 | |
--.BDI.Z. | 1991-05-21T03:53:40.42 | 10.0 | undecidable | manual | PG | 321 | 0.4773 | 0.38 | 1.1 | |
--.FIR.Z. | 1991-05-21T03:53:38.00 | 10.0 | undecidable | manual | SG | 62 | 0.1887 | -0.16 | 1 | |
--.PII.Z. | 1991-05-21T03:53:37.73 | 10.0 | negative | manual | PG | 276 | 0.3552 | 0.03 | 3.5 | |
--.FIR.Z. | 1991-05-21T03:53:35.00 | 10.0 | undecidable | manual | PG | 62 | 0.1887 | 0.3 | 1.3 |