A magnitude mb 5.6 earthquake occured in region: Tonga Islands [Sea: Tonga], on
and geographic coordinates (lat, lon) -15.8000, -173.3000 at 10 km depth.
The earthquake was located by: CSEM.
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.
No Italian municipalities within 20 km distance.
No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
mb 5.6 | 2009-10-28 23:56:40 |
-15.8 | -173.3 | 10 | 2013-01-05 18:50:22 |
CSEM | 984449 |
Field | Value |
---|---|
Time (UTC) | 2009-10-28 23:56:40 |
Latitude | -15.8000 |
Longitude | -173.3000 |
Depth (km) | 10 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> CSEM |
Event type | earthquake |
Origin ID | 984449 |
Field | Value |
---|---|
Preferred uncertainty description | |
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) | |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | |
Number of associated phases, regardless of their use for origin computation | 23 |
Number of defining phases | 15 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.00000 |
Number of stations at which the event was observed | 23 |
Number of stations from which data was used for origin computation | 15 |
Field | Value |
---|---|
Value | 5.6 |
Uncertainty | |
Num. used stations | |
Type of magnitude | mb |
Reference to an origin | 984449 |
Agency | INGV |
Autore | CSEM |
Time of creation (UTC) | 2013-01-05 18:50:22 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MIDA.HHZ. | 2009-10-29T00:16:42.33 | 10.0 | undecidable | manual | PKP | 0 | 0 | 0 | ||
MN.VLC.HHE. | 2009-10-29T00:16:38.45 | 10.0 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.ARCI.HHN. | 2009-10-29T00:16:38.15 | 10.0 | undecidable | manual | PKP | 0 | 0 | 0 | ||
MN.BNI.HHN. | 2009-10-29T00:16:37.00 | 10.0 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.PII.SHZ. | 2009-10-29T00:16:35.11 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.MURB.HHZ. | 2009-10-29T00:16:35.70 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.QLNO.HHZ. | 2009-10-29T00:16:34.81 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.BOB.HHZ. | 2009-10-29T00:16:34.36 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.MONC.HHZ. | 2009-10-29T00:16:33.72 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.MRGE.HHZ. | 2009-10-29T00:16:32.77 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
MN.AQU.HHZ. | 2009-10-29T00:16:32.31 | 10.0 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.CERT.HHZ. | 2009-10-29T00:16:31.87 | 10.0 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.MDI.HHZ. | 2009-10-29T00:16:31.11 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.BADI.EHZ. | 2009-10-29T00:16:30.89 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.CING.HHE. | 2009-10-29T00:16:30.05 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
MN.TUE.HHZ. | 2009-10-29T00:16:30.87 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.FNVD.HHZ. | 2009-10-29T00:16:30.01 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.GRFL.SHZ. | 2009-10-29T00:16:30.13 | 10.0 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.MABI.HHZ. | 2009-10-29T00:16:29.98 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.SBPO.HHZ. | 2009-10-29T00:16:28.63 | 10.0 | undecidable | manual | PKP | 0 | 0 | 0 | ||
MN.TRI.HHZ. | 2009-10-29T00:16:26.27 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.APPI.EHN. | 2009-10-29T00:16:25.05 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.PTCC.HHZ. | 2009-10-29T00:16:24.74 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 |