A magnitude Md 2.2 earthquake occured in region: 1 km NW Castelfiorentino (FI), on
and geographic coordinates (lat, lon) 43.6170, 10.9630 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 |
---|---|---|---|---|
Castelfiorentino | FI | 1 | 17504 | 17504 |
Montaione | FI | 8 | 3700 | 21204 |
Gambassi Terme | FI | 9 | 4870 | 26074 |
Montespertoli | FI | 10 | 13537 | 39611 |
Certaldo | FI | 10 | 16121 | 55732 |
San Miniato | PI | 11 | 27934 | 83666 |
Empoli | FI | 12 | 48109 | 131775 |
Montelupo Fiorentino | FI | 14 | 14098 | 145873 |
Capraia e Limite | FI | 14 | 7670 | 153543 |
Palaia | PI | 15 | 4612 | 158155 |
Montopoli in Val d'Arno | PI | 17 | 11148 | 169303 |
Cerreto Guidi | FI | 17 | 10870 | 180173 |
Fucecchio | FI | 18 | 23618 | 203791 |
San Gimignano | SI | 18 | 7820 | 211611 |
Tavarnelle Val di Pesa | FI | 18 | 7800 | 219411 |
Santa Croce sull'Arno | PI | 18 | 14601 | 234012 |
San Casciano in Val di Pesa | FI | 19 | 17062 | 251074 |
Barberino Val d'Elsa | FI | 19 | 4386 | 255460 |
Vinci | FI | 19 | 14604 | 270064 |
Castelfranco di Sotto | PI | 20 | 13427 | 283491 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.2 | 1991-05-18 03:31:02 |
43.617 | 10.963 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 141429 |
Field | Value |
---|---|
Time (UTC) | 1991-05-18 03:31:02 ± 0.382 |
Latitude | 43.6170 ± 0.0272 |
Longitude | 10.9630 ± 0.0148 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 141429 |
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) | 3249.7 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 222 |
Number of associated phases, regardless of their use for origin computation | 10 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.4 |
Epicentral distance of station closest to the epicenter (degree) | 0.00235 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00623 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 2.2 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 141429 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:12:01 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.SFI.Z. | 1991-05-18T03:31:25.94 | 10.0 | undecidable | manual | SG | 65 | 0.6882 | -0.59 | 0.3 | |
--.BDI.Z. | 1991-05-18T03:31:20.20 | 10.0 | undecidable | manual | SG | 329 | 0.5106 | -0.45 | 0.5 | |
--.PGD.Z. | 1991-05-18T03:31:15.18 | 10.0 | undecidable | manual | PG | 64 | 0.5994 | 0.72 | 0.6 | |
--.MME.Z. | 1991-05-18T03:31:15.00 | 10.0 | undecidable | manual | PG | 342 | 0.5994 | 0.52 | 1 | |
--.SFI.Z. | 1991-05-18T03:31:15.93 | 10.0 | undecidable | manual | PG | 65 | 0.6882 | -0.29 | 1.4 | |
--.PII.Z. | 1991-05-18T03:31:14.60 | 10.0 | undecidable | manual | SG | 288 | 0.333 | -0.7 | 0.3 | |
--.BDI.Z. | 1991-05-18T03:31:12.68 | 10.0 | undecidable | manual | PG | 329 | 0.5106 | -0.14 | 1.8 | |
--.PTF.Z. | 1991-05-18T03:31:10.10 | 10.0 | undecidable | manual | PG | 12 | 0.3441 | 0.36 | 1.5 | |
--.PII.Z. | 1991-05-18T03:31:09.56 | 10.0 | undecidable | manual | PG | 288 | 0.333 | 0.14 | 1.9 | |
--.FIR.Z. | 1991-05-18T03:31:07.50 | 10.0 | undecidable | manual | PG | 53 | 0.2553 | -0.61 | 0.9 |