To mark the 10th anniversary of the Indian Ocean tsunami several South Asian countries are holding ceremonies. More than 200,000 people died when an underwater earthquake set off massive waves on 26 December 2004. In Indonesia’s province of Aceh Vice-President Jusuf Kalla led tributes to the dead at the Siron mass grave. Thai Prime Minister Prayuth Chan-ocha also laid a wreath of remembrance. The devastating December 26, 2004, tsunami, triggered by a 9.1-magnitude earthquake, struck a dozen countries around the Indian Ocean rim. The tsunami also hit Bangladesh, Myanmar, Malaysia, the Maldives and later reached the east African nations’ of Kenya, Somalia and Tanzania. Tsunami warning systems and emergency procedures have been implemented since the disaster to try to minimise casualties in the future. Let us all spend a few quiet moments in remembrance of those who lost there lives, to honor the struggles of those who survived and to thank all those who contributed to the recovery and rebuilding.
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| Parameter | Value | Description |
|---|---|---|
| Magnitude | mb | The magnitude for the event. |
| Longitude | ° East | Decimal degrees longitude. Negative values for western longitudes. |
| Latitude | ° North | Decimal degrees latitude. Negative values for southern latitudes. |
| Depth | km | Depth of the event in kilometers. |
| Place | Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name. | |
| Time | 1970-01-01 00:00:00 | Time when the event occurred. UTC/GMT |
| Updated | 1970-01-01 00:00:00 | Time when the event was most recently updated. UTC/GMT |
| Timezone offset | Timezone offset from UTC in minutes at the event epicenter. | |
| Felt | The total number of felt reports | |
| CDI | The maximum reported intensity for the event. | |
| MMI | The maximum estimated instrumental intensity for the event. | |
| Alert Level | The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red. | |
| Review Status | Indicates whether the event has been reviewed by a human. | |
| Tsunami | This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist. | |
| SIG | A number describing how significant the event is. Larger numbers indicate a more significant event. | |
| Network | The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event. | |
| Sources | A comma-separated list of network contributors. | |
| Number of Stations Used | The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake. | |
| Horizontal Distance | Horizontal distance from the epicenter to the nearest station (in degrees). | |
| Root Mean Square | sec | The root-mean-square (RMS) travel time residual, in sec, using all weights. |
| Azimuthal Gap | The largest azimuthal gap between azimuthally adjacent stations (in degrees). | |
| Magnitude Type | The method or algorithm used to calculate the preferred magnitude for the event. | |
| Event Type | Type of seismic event. | |
| Event ID | Id of event. | |
| Event Code | An identifying code assigned by, and unique from, the corresponding source for the event. | |
| Event IDS | A comma-separated list of event ids that are associated to an event. |
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