A magnitude Md 2.5 earthquake occured in region: 8 km SE Sovicille (SI), on
and geographic coordinates (lat, lon) 43.2310, 11.2960 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 |
---|---|---|---|---|
Sovicille | SI | 8 | 10116 | 10116 |
Siena | SI | 10 | 53903 | 64019 |
Monteroni d'Arbia | SI | 10 | 9088 | 73107 |
Murlo | SI | 10 | 2389 | 75496 |
Monticiano | SI | 14 | 1571 | 77067 |
Buonconvento | SI | 18 | 3173 | 80240 |
Chiusdino | SI | 19 | 1903 | 82143 |
Monteriggioni | SI | 19 | 9810 | 91953 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.5
ML-VAX 2.5 |
1990-09-28 18:35:41 |
43.231 | 11.296 | 10 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 127869 |
Field | Value |
---|---|
Time (UTC) | 1990-09-28 18:35:41 ± 0.503 |
Latitude | 43.2310 ± 0.0075 |
Longitude | 11.2960 ± 0.0134 |
Depth (km) | 10 ± 4 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 127869 |
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) | 1370.5 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 136 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.00550 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00947 |
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 | 2.5 |
Uncertainty | |
Num. used stations | 4 |
Type of magnitude | Md |
Reference to an origin | 127869 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 18:58:55 |
Field | Value |
---|---|
Value | 2.5 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | ML |
Reference to an origin | 127869 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2015-04-28 13:07:13 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
--.BDI.Z. | 1990-09-28T18:36:14.35 | 10.0 | undecidable | manual | SG | 329 | 0.9657 | -0.3 | 0.3 | |
--.MAO.Z. | 1990-09-28T18:36:09.43 | 10.0 | undecidable | manual | SG | 187 | 0.8214 | -0.34 | 0.3 | |
--.PII.Z. | 1990-09-28T18:36:07.15 | 10.0 | undecidable | manual | SG | 311 | 0.7326 | -0.16 | 0.6 | |
--.PGD.Z. | 1990-09-28T18:36:05.61 | 10.0 | undecidable | manual | SG | 25 | 0.7104 | -0.74 | 0 | |
--.CRE.Z. | 1990-09-28T18:36:02.51 | 10.0 | undecidable | manual | SG | 50 | 0.6105 | -0.64 | 0 | |
--.MME.Z. | 1990-09-28T18:36:02.43 | 10.0 | undecidable | manual | PN | 336 | 1.0545 | 0.38 | 0.6 | |
--.BDI.Z. | 1990-09-28T18:36:00.58 | 10.0 | undecidable | manual | PG | 329 | 0.9657 | -0.07 | 1.5 | |
--.SFI.Z. | 1990-09-28T18:35:57.25 | 10.0 | undecidable | manual | PG | 30 | 0.777 | 0.12 | 1.5 | |
--.MAO.Z. | 1990-09-28T18:35:57.77 | 10.0 | undecidable | manual | PG | 187 | 0.8214 | -0.05 | 1.6 | |
--.PGD.Z. | 1990-09-28T18:35:56.20 | 10.0 | undecidable | manual | PG | 25 | 0.7104 | 0.16 | 1.4 | |
--.PII.Z. | 1990-09-28T18:35:56.43 | 10.0 | positive | manual | PG | 311 | 0.7326 | 0.02 | 3.3 | |
--.CRE.Z. | 1990-09-28T18:35:54.33 | 10.0 | undecidable | manual | PG | 50 | 0.6105 | 0.32 | 0.9 |