A magnitude mb 5.1 earthquake occured in region: Tonga Islands [Sea: Tonga], on
and geographic coordinates (lat, lon) -16.9000, -174.0000 at 100 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 5.1 | 2009-08-28 04:07:59 |
-16.9 | -174 | 100 | 2013-01-05 18:16:35 |
CSEM | 957199 |
Field | Value |
---|---|
Time (UTC) | 2009-08-28 04:07:59 |
Latitude | -16.9000 |
Longitude | -174.0000 |
Depth (km) | 100 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> CSEM |
Event type | earthquake |
Origin ID | 957199 |
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 | 20 |
Number of defining phases | 17 |
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 | 20 |
Number of stations from which data was used for origin computation | 17 |
Field | Value |
---|---|
Value | 5.1 |
Uncertainty | |
Num. used stations | |
Type of magnitude | mb |
Reference to an origin | 957199 |
Agency | INGV |
Autore | CSEM |
Time of creation (UTC) | 2013-01-05 18:16:35 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.LNSS.HHZ. | 2009-08-28T04:27:50.31 | 10.0 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.MURB.HHZ. | 2009-08-28T04:27:44.09 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.SEI.SHZ. | 2009-08-28T04:27:44.01 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.SNTG.SHZ. | 2009-08-28T04:27:44.95 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.GSCL.SHZ. | 2009-08-28T04:27:43.56 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.VMG.SHZ. | 2009-08-28T04:27:43.47 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.ERBM.EHZ. | 2009-08-28T04:27:43.68 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.BOB.HHZ. | 2009-08-28T04:27:42.45 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.MRGE.HHZ. | 2009-08-28T04:27:41.43 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.SALO.HHE. | 2009-08-28T04:27:40.41 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.ORO.SHZ. | 2009-08-28T04:27:40.58 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.MAGA.HHZ. | 2009-08-28T04:27:39.50 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.ROVR.HHZ. | 2009-08-28T04:27:39.70 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
MN.TUE.HHZ. | 2009-08-28T04:27:39.13 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
MN.BLY.HHZ. | 2009-08-28T04:27:39.53 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.BRMO.HHZ. | 2009-08-28T04:27:38.86 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.CTI.EHZ. | 2009-08-28T04:27:38.68 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.NRCA.SHZ. | 2009-08-28T04:27:37.76 | 0.1 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.FVI.HHN. | 2009-08-28T04:27:24.47 | 10.0 | undecidable | manual | PKP | 0 | 0 | 0 | ||
IV.FAGN.HHE. | 2009-08-28T04:27:18.12 | 10.0 | undecidable | manual | PKP | 0 | 0 | 0 |