A magnitude Md 2.2 earthquake occured in region: 4 km W Monterotondo Marittimo (GR), on
and geographic coordinates (lat, lon) 43.1330, 10.8070 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 |
---|---|---|---|---|
Monterotondo Marittimo | GR | 4 | 1371 | 1371 |
Monteverdi Marittimo | PI | 9 | 758 | 2129 |
Massa Marittima | GR | 11 | 8375 | 10504 |
Castelnuovo di Val di Cecina | PI | 12 | 2231 | 12735 |
Suvereto | LI | 12 | 3072 | 15807 |
Sassetta | LI | 13 | 514 | 16321 |
Castagneto Carducci | LI | 16 | 9010 | 25331 |
Montieri | GR | 17 | 1204 | 26535 |
Campiglia Marittima | LI | 17 | 13218 | 39753 |
Pomarance | PI | 20 | 5897 | 45650 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
Md 2.2
ML-VAX 1.5 |
1987-12-19 20:56:18 |
43.133 | 10.807 | 10 | 2013-07-15 08:41:04 |
Bollettino Sismico Italiano INGV | 59809 |
Field | Value |
---|---|
Time (UTC) | 1987-12-19 20:56:18 ± 0.288 |
Latitude | 43.1330 ± 0.0149 |
Longitude | 10.8070 ± 0.0596 |
Depth (km) | 10 (operator assigned) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-VAX |
Event type | earthquake |
Origin ID | 59809 |
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) | 5112.6 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 180 |
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) | 0.3 |
Epicentral distance of station closest to the epicenter (degree) | 0.00559 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00955 |
Number of stations at which the event was observed | 5 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 2.2 |
Uncertainty | |
Num. used stations | 3 |
Type of magnitude | Md |
Reference to an origin | 59809 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2013-01-04 17:57:08 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | |
Num. used stations | 1 |
Type of magnitude | ML |
Reference to an origin | 59809 |
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. | 1987-12-19T20:56:51.50 | 10.0 | undecidable | manual | SG | 350 | 0.9324 | 0.39 | 0.5 | |
--.MAO.Z. | 1987-12-19T20:56:45.12 | 10.0 | undecidable | manual | SG | 160 | 0.7548 | -0.17 | 0.6 | |
--.MME.Z. | 1987-12-19T20:56:41.70 | 10.0 | undecidable | manual | PN? | 355 | 1.0656 | 1.44 | 0 | |
--.PII.Z. | 1987-12-19T20:56:40.00 | 10.0 | undecidable | manual | SG | 340 | 0.6216 | -0.88 | 0.2 | |
--.PGD.Z. | 1987-12-19T20:56:38.25 | 10.0 | undecidable | manual | PG | 41 | 0.9879 | -0.28 | 1.3 | |
--.BDI.Z. | 1987-12-19T20:56:38.00 | 10.0 | undecidable | manual | PG | 350 | 0.9324 | 0.47 | 1 | |
--.MAO.Z. | 1987-12-19T20:56:34.17 | 10.0 | positive | manual | PG | 160 | 0.7548 | -0.01 | 3.3 | |
--.PII.Z. | 1987-12-19T20:56:31.12 | 10.0 | undecidable | manual | PG | 340 | 0.6216 | -0.52 | 1 |