Problem with date format Mapping

I show this error when I try to index timeStamp:

[2013-10-17 18:03:50,442][DEBUG][action.index ] [Nodo_4] [201310][4], node[gAsHZ-efQjiFyqvFUCY3fw], [P], s[STARTED]: Failed to execute [index {[201310][navegacion][IMOR80MKR0uKubGU0W4d6w], source[{
"ip_origen": "10.7.2.75",
"campo2": "-",
"campo4": "http://www.libertaddigital.com/",
"campo6": "-",
"cs-bytes": 859,
"content-type": "text/html",
"host": "www.libertaddigital.com",
"method":"GET",
"port":80,
"referer":"10.7.2.68",
"uri-path":"/espana/2013-10-15/el-ayuntamiento-de-barcelona-censura-la-foto-del-torero-padilla-para-promocionar-una-exposicion-1276501875/",
"uri-query":"-",
"uri-scheme":"http",
"user-agent":"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)",
"event-date":"2013-10-16 10:00:00",
"instance":"cacheint3",
"sc-bytes":59634,
"filter-category":"News/Media",
"filter-result":"OBSERVED",
"status":200
}]}]
org.elasticsearch.index.mapper.MapperParsingException: failed to parse [event-date]
at org.elasticsearch.index.mapper.core.AbstractFieldMapper.parse(AbstractFieldMapper.java:396)
at org.elasticsearch.index.mapper.multifield.MultiFieldMapper.parse(MultiFieldMapper.java:207)
at org.elasticsearch.index.mapper.object.ObjectMapper.serializeValue(ObjectMapper.java:614)
at org.elasticsearch.index.mapper.object.ObjectMapper.parse(ObjectMapper.java:467)
at org.elasticsearch.index.mapper.DocumentMapper.parse(DocumentMapper.java:508)
at org.elasticsearch.index.mapper.DocumentMapper.parse(DocumentMapper.java:452)
at org.elasticsearch.index.shard.service.InternalIndexShard.prepareIndex(InternalIndexShard.java:341)
at org.elasticsearch.action.index.TransportIndexAction.shardOperationOnPrimary(TransportIndexAction.java:203)
at org.elasticsearch.action.support.replication.TransportShardReplicationOperationAction$AsyncShardOperationAction.performOnPrimary(TransportShardReplicationOperationAction.java:533)
at org.elasticsearch.action.support.replication.TransportShardReplicationOperationAction$AsyncShardOperationAction$1.run(TransportShardReplicationOperationAction.java:418)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: org.elasticsearch.index.mapper.MapperParsingException: failed to parse date field [2013-10-16 10:00:00], tried both date format [dateOptionalTime], and timestamp number with locale [null]
at org.elasticsearch.index.mapper.core.DateFieldMapper.parseStringValue(DateFieldMapper.java:465)
at org.elasticsearch.index.mapper.core.DateFieldMapper.innerParseCreateField(DateFieldMapper.java:413)
at org.elasticsearch.index.mapper.core.NumberFieldMapper.parseCreateField(NumberFieldMapper.java:188)
at org.elasticsearch.index.mapper.core.AbstractFieldMapper.parse(AbstractFieldMapper.java:385)
... 12 more
Caused by: java.lang.IllegalArgumentException: Invalid format: "2013-10-16 10:00:00" is malformed at " 10:00:00"
at org.elasticsearch.common.joda.time.format.DateTimeFormatter.parseMillis(DateTimeFormatter.java:754)
at org.elasticsearch.index.mapper.core.DateFieldMapper.parseStringValue(DateFieldMapper.java:459)
... 15 more

With this definition:

{
"navegacion": {
"properties": {
"ip_origen":{"type": "string"},
"campo2":{"type": "string"},
"campo4":{"type": "string"},
"campo6":{"type": "string"},
"cs-bytes":{"type": "integer"},
"content-type":{"type": "string"},
"host":{"type": "string"},
"method":{"type": "string"},
"port":{"type": "integer"},
"referer":{"type": "string"},
"uri-path":{"type": "string"},
"uri-query":{"type": "string"},
"uri-scheme":{"type": "string"},
"user-agent":{"type": "string"},
"username":{"type": "string"},
"event-date":{"type" : "date","format" : "MM-dd-yyyy||yyyy-MM-dd HH:mm:ss"},
"instance":{"type": "string"},
"sc-bytes":{"type": "integer"},
"filter-category":{"type": "string"},
"filter-result":{"type": "string"},
"status":{"type": "integer"}
}
}
}