A magnitude Md 2.3 earthquake occured in region: 6 km E Monteriggioni (SI), on
and geographic coordinates (lat, lon) 43.3760, 11.2900 at 5 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 |
---|---|---|---|---|
Monteriggioni | SI | 6 | 9810 | 9810 |
Siena | SI | 7 | 53903 | 63713 |
Castellina in Chianti | SI | 11 | 2859 | 66572 |
Sovicille | SI | 12 | 10116 | 76688 |
Radda in Chianti | SI | 14 | 1613 | 78301 |
Colle di Val d'Elsa | SI | 15 | 21620 | 99921 |
Poggibonsi | SI | 15 | 29196 | 129117 |
Gaiole in Chianti | SI | 16 | 2758 | 131875 |
Castelnuovo Berardenga | SI | 18 | 9097 | 140972 |
Monteroni d'Arbia | SI | 19 | 9088 | 150060 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3 | 1988-04-04 18:12:56 |
43.376 | 11.29 | 5 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 65699 |
Field | Value |
---|---|
Time (UTC) | 1988-04-04 18:12:56 ± 0.956 |
Latitude | 43.3760 ± 0.0596 |
Longitude | 11.2900 ± 0.0273 |
Depth (km) | 5 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 65699 |
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) | 6980.4 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 265 |
Number of associated phases, regardless of their use for origin computation | 8 |
Number of defining phases | 8 |
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) | 0.00526 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00826 |
Number of stations at which the event was observed | 4 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 2.3 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 65699 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 18:02:16 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.MME.Z. | 1988-04-04T18:13:30.35 | 10.0 | undecidable | manual | SG | 332 | 0.9213 | 0.98 | 0.2 | |
--.PII.Z. | 1988-04-04T18:13:20.11 | 10.0 | undecidable | manual | SG | 302 | 0.6438 | -0.66 | 0.5 | |
--.SS9.Z. | 1988-04-04T18:13:20.37 | 10.0 | undecidable | manual | SG | 36 | 0.6771 | -1.26 | 0.1 | |
--.PGD.Z. | 1988-04-04T18:13:19.35 | 10.0 | undecidable | manual | SG | 32 | 0.5883 | 0.65 | 0.5 | |
--.MME.Z. | 1988-04-04T18:13:14.99 | 10.0 | undecidable | manual | PG | 332 | 0.9213 | -0.67 | 1 | |
--.SS9.Z. | 1988-04-04T18:13:11.30 | 10.0 | undecidable | manual | PG | 36 | 0.6771 | 0.1 | 2.1 | |
--.PII.Z. | 1988-04-04T18:13:11.60 | 10.0 | undecidable | manual | PG | 302 | 0.6438 | 0.36 | 1.8 | |
--.PGD.Z. | 1988-04-04T18:13:09.78 | 10.0 | undecidable | manual | PG | 32 | 0.5883 | 0.27 | 1.9 |