| Attribute/Logical Rolename |
Domain |
Datatype |
NULL |
Definition |
magid |
|
NUMERIC(15, 0) |
NO |
Magnitude identifier. This key is used to identify a magnitude in the Netmag relation. It is required for every magnitude |
orid |
|
NUMERIC(15, 0) |
NO |
Origin identification. Each origin is assigned a unique positive integer which identifies it in the database. The orid is used to identify one of the many hypotheses of the actual location of the event |
| commid |
|
NUMERIC(15, 0) |
YES |
Comment identification. This is a key used to point to free-form comments entered in the Remark relation. These comments store additional information about a tuple in another relation. Within the Remark relation, there may be many tuples with the same commid and different lineno, but the same commid will appear in only one other tuple among the rest of the relations in the database |
| magnitude |
|
NUMERIC(5, 2) |
NO |
Magnitude. This gives the magnitude value of the type indicated by magtype |
| magtype |
|
VARCHAR(6) |
NO |
Magnitude type. This character string is used to specify the type of the magnitude measure |
| auth |
|
VARCHAR(15) |
NO |
The auth field specifies the source of the information. This may be a network identifier (FDSN or otherwise), or any other string indicating the source of the information in the record |
| subsource |
|
VARCHAR(8) |
YES |
A second identifier to specify the system or process that derived the data. e.g., the origin's AUTH is CI, but the subsource (the solution) was computed by JIGGLE |
| magalgo |
|
VARCHAR(15) |
YES |
This attribute represents the algorithm used to compute the magnitude |
| nsta |
|
NUMERIC(5, 0) |
YES |
This quantity is the number of observations with non-zero input weights used to compute the magnitude or mechanism |
| uncertainty |
|
NUMERIC(5, 3) |
YES |
Magnitude uncertainty. This is the standard deviation of the accompanying magnitude measurement |
| gap |
|
NUMERIC(4, 1) |
YES |
Gap in azimuthal coverage |
| distance |
|
NUMERIC(7, 3) |
YES |
Distance from the origin to the nearest station |
| quality |
|
NUMERIC(2, 1) |
YES |
This attribute denotes the quality of an origin, an arrival, or a mechanism. 1.0 = good, 0.0 = bad |
| rflag |
|
VARCHAR(2) |
YES |
This flag describes whether an observation was generated automatically, by a human, or has been finalized |
| lddate |
|
DATE |
YES |
Load date. Date and time that the record was created or last modified, in Oracle date datatype |
| Check Constraint Name |
CheckConstraint |
| netmag01 |
magnitude >= -10.0 and magnitude <= 10.0 |
| netmag02 |
magtype in ('p', 'a','b','e','l','l1','l2','lg','c','s','w','z','B','un','d','h','n') |
| netmag03 |
nsta >= 0 |
| netmag04 |
uncertainty >= 0.0 |
| netmag05 |
quality >= 0.0 and quality <= 1.0 |
| netmag06 |
magid > 0 |
| netmag07 |
rflag in ('a','h','f','A','H','F') |