A magnitude Md 2.3 earthquake occured in region: 3 km W Monterotondo Marittimo (GR), on
and geographic coordinates (lat, lon) 43.1570, 10.8290 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 |
---|---|---|---|---|
Monterotondo Marittimo | GR | 3 | 1371 | 1371 |
Castelnuovo di Val di Cecina | PI | 9 | 2231 | 3602 |
Monteverdi Marittimo | PI | 9 | 758 | 4360 |
Massa Marittima | GR | 13 | 8375 | 12735 |
Suvereto | LI | 15 | 3072 | 15807 |
Sassetta | LI | 15 | 514 | 16321 |
Montieri | GR | 16 | 1204 | 17525 |
Pomarance | PI | 16 | 5897 | 23422 |
Castagneto Carducci | LI | 18 | 9010 | 32432 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.3
ML-VAX 2.2 |
1991-09-06 14:51:49 |
43.157 | 10.829 | 11 | 2013-07-15 08:40:51 |
Bollettino Sismico Italiano INGV | 148839 |
Field | Value |
---|---|
Time (UTC) | 1991-09-06 14:51:49 ± 0.299 |
Latitude | 43.1570 ± 0.0194 |
Longitude | 10.8290 ± 0.0507 |
Depth (km) | 11 ± 4 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 148839 |
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) | 4647.5 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 176 |
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) | 0.4 |
Epicentral distance of station closest to the epicenter (degree) | 0.00542 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00939 |
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 | 2.3 |
Uncertainty | |
Num. used stations | 2 |
Type of magnitude | Md |
Reference to an origin | 148839 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 19:18:55 |
Field | Value |
---|---|
Value | 2.2 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | ML |
Reference to an origin | 148839 |
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 |
---|---|---|---|---|---|---|---|---|---|---|
--.MME.Z. | 1991-09-06T14:52:23.92 | 10.0 | undecidable | manual | SN | 354 | 1.0323 | -0.14 | 0.6 | |
--.BDI.Z. | 1991-09-06T14:52:20.33 | 10.0 | undecidable | manual | SG | 349 | 0.9213 | -0.24 | 0.6 | |
--.CRE.Z. | 1991-09-06T14:52:20.00 | 10.0 | undecidable | manual | SG | 59 | 0.9324 | -1.13 | 0.1 | |
--.MAO.Z. | 1991-09-06T14:52:14.82 | 10.0 | undecidable | manual | SG | 161 | 0.777 | -1.16 | 0.1 | |
--.SFI.Z. | 1991-09-06T14:52:09.96 | 10.0 | undecidable | manual | PN | 44 | 1.0434 | 0.52 | 1.1 | |
--.PII.Z. | 1991-09-06T14:52:09.24 | 10.0 | undecidable | manual | SG | 338 | 0.5994 | -1.23 | 0.1 | |
--.MME.Z. | 1991-09-06T14:52:09.67 | 10.0 | undecidable | manual | PN | 354 | 1.0323 | 0.37 | 1.3 | |
--.CRE.Z. | 1991-09-06T14:52:08.50 | 10.0 | undecidable | manual | PG | 59 | 0.9324 | 0.89 | 0.6 | |
--.BDI.Z. | 1991-09-06T14:52:07.77 | 10.0 | undecidable | manual | PG | 349 | 0.9213 | 0.48 | 1.2 | |
--.MAO.Z. | 1991-09-06T14:52:04.73 | 10.0 | undecidable | manual | PG | 161 | 0.777 | 0.09 | 1.7 | |
--.PII.Z. | 1991-09-06T14:52:01.52 | 10.0 | negative | manual | PG | 338 | 0.5994 | 0.06 | 3.5 |