eventtype 
Logical Entity Name  eventtype 
Default Table Name  eventtype 
Definition  Summary information on event types 

eventtype Attributes 
Attribute/Logical Rolename  Domain  Datatype  NULL  Definition 
etype(PK)    VARCHAR(2)  NO  This attribute is used to identify the type of seismic event 
name    VARCHAR(16)  NO  Name associated with an event type 
description    VARCHAR(80)  YES  Event type description 
qmltype    VARCHAR(80)  YES  QuakeMl event type 

eventtype Keys 
Key Name  Key Type  Keys 
EVENTTYPEKEY01  PrimaryKey  etype 

eventtype Relationships 
Parent Relationships: 
Entity Name  Type  Cardinality  Business Name  VerbPhrase  InversePhrase  Foreign Keys  Is Supertype 
Child Relationships: 
Entity Name  Type  Cardinality  Business Name  VerbPhrase  InversePhrase  Foreign Keys  Is Subtype 
assoctypecat  Non-Identifying  One To Zero or More          NO 
event  Non-Identifying  One To Zero or More          NO 

eventtype Check Constraints 
Check Constraint Name  CheckConstraint 
EVENTTYPE02  etype IN ('eq','lp','se','to','tr','vt','nt','qb','ce','ex','sh','sn','th','av','co','df','ls','rb','rs','ve','bc','mi','pc','ot','st','uk','lf','su','px'','ne','nr','ae','cl','cc','ax','cx','ee','de','me','rc','bl','ie','rl','fi','fe','cr','tc','oc','oe','pe','sb','an','al','he','iq','sl')