| Attribute/Logical Rolename |
Domain |
Datatype |
NULL |
Definition |
evid |
|
NUMERIC(15, 0) |
NO |
Event identifier. Each event is assigned a unique integer which identifies it in a database. It is possible for several records in the Origin relation to have the same evid. This indicates there are several opinions about the location of the event. The evid does not have to be identical to the local network’s event identifier, which is stored in the Origin table. This allows merging data for a single event from multiple sources without insisting that database evid is identical to the source’s local event identifier |
| evname |
|
VARCHAR(80) |
YES |
Event name. This is a descriptive name for major events |
| remarks |
|
VARCHAR(2) |
YES |
This attribute is used to give some information about the event, such as felt or damage |
| nfelt |
|
NUMERIC(8, 0) |
YES |
Number of felt reports |
| mmi |
|
NUMERIC(2, 0) |
YES |
Reported or inferred Mercali intensity for event |
| pga |
|
NUMERIC(6, 4) |
YES |
Peak ground acceleration recorded by any station for the event. Represented in g, where 1.0 = 1g |
| lddate |
|
DATE |
YES |
Load date. Date and time that the record was created or last modified, in Oracle date datatype |