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 Maintenance announcements
Maintenance announcements are posted here. These announcements regard the GDACS web site and the GDACS disaster alert system.
GDACS maintenance policy - Friday, February 14, 2014
To comply with JRC policy on security settings, GDACS servers may go offline on a weekly basis for basic maintenance. The maintenance will be limited to a few minutes around 11:00UTC on Fridays. This affects all GDACS services (including mobile services). JRC is working on a solution to eliminate the downtime. read more ...
Old GDACS system shut down - Friday, November 22, 2013

In June 2013, GDACS was migrated to new servers. The old system was still available as backup under the URL This system has now been shut down. If you have any links pointing to that URL, they will not longer work.

Solved issue with Australian mobile numbers - Tuesday, November 19, 2013

Australian users may have experienced problems with receiving SMS alerts from GDACS in the past months. We noticed a while ago that all SMS traffic to Australian mobile numbers was not processed well by our SMS provider. We’ve since worked with the provider on a solution, which was tested with a few users this week. All traffic to Australian mobile numbers should now be routed correctly.

GDACS Migration - Wednesday, July 17, 2013

The JRC will shortly upgrade hardware and software underlying the GDACS monitoring, alert and public web system. User registration and changes to the alert profile will be unavailable for a short time, but other changes should be transparent. The main changes are:

  • Complete overhaul of the Earthquake and Tsunami system for better performance and with new alert models for tsunamis, support for national sub-systems and for different alert scales
  • Upgrade of the geospatial database system from ArcGIS Server 9.3 to 10, with new features for better maps
  • Migration of hardware from JRC corporate web zone to a dedicated subnet with more flexibility for scaling and deploying new beta products, and reducing the servers from 15 to 8 more powerful ones in a new architecture.

The new system can be previewed on Please let us know if you notice bugs with services you're using, in particular for syndicated feeds. After the switch (which will be announced in a further message), the old system will be available on Please don't hesitate to contact us for further information.

 Your feedback
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         1/24/2012 2:42:52 PM
New GDACS web site launched Today, the new GDACS website has been put in production. Please let us know your comments and suggestions. We'll try to fix teething problems as soon as possible. Submitted By: GDACS Team

         10/14/2011 8:31:02 AM
My Message failed again. Can you check my SMS service +66806946567 [+66 thai and my phone number 0806946567.] There're not send me a message for 2 month. account: thank you. Submitted By: seyren

         6/13/2011 1:35:46 AM
Advance notice I'd recommend advising in ADVANCE of updates/maintenance, etc., so that systems are not needlessly activated, etc. And some of the info/reports need to be more generic so that they will be readable on ANY computer system. Thanks. Sincerely, Ed Montgomery Submitted By: Ed Montgomery

         6/12/2011 8:47:59 PM
A false earthquake alert for Italy that's why I had not noticed! greetings from italy. Submitted By: Fabio

         6/12/2011 7:51:03 PM
Italy Flase Alert Bearing in mind it was reported as a 7.7M, we had out USAR teams alerted for any eventuality in case we would be called up to assist our Italian neighbours. We only got to know by friends living in the area that no earthquake took place!Error reports should be published as soon as they are knows so as to avoid unnecessary mobilisation of rescue teams. Submitted By: Capt. R. Lanfranco

         6/12/2011 7:41:44 PM
Searching Earth Quake alert system please let me know where is the best suited main dealer or reseller for buying newest global disaster equiptmnet and digital volcanique 24/7 12 month monitoring system. Let them reach me by email. thank you very much best regards, asep Note: Please keep me secure, do not tagpublish this hope on your web Submitted By: asep

         6/12/2011 5:58:54 PM
A false earthquake alert for Italy was sent out on Sunday But I like this system Submitted By: Asanka

         6/12/2011 4:22:08 PM
False alarm Could it be an atomic explosion in Italy today? Submitted By: Zakir Hossain

         6/12/2011 3:26:52 PM
false earthquake report The earthquake you reported in Italy was a total false alarm, not only that, you mention that you corrected it but this was not corrected for quite a few hours! its a total failure of information and cause unnecessary alarm, please make sure this happen again or that you are able to quickly correct your mistakes. There is no phone number to contact you either, just a useless form for feedback. Kindly improve your services. Thanks Submitted By: Pritesh Samuel

         6/12/2011 3:26:25 PM
False earthquake alert Sorry just won't cut it! A false alert of several hours especially when it appeared to be a major earthquake (magn 7.7 and depth 1 km) which should have destroyed every building standing and caused a horrendous loss of life should not have gone unnoticed! No excuse for this!!! At the most it should've been cancelled within an hour if not minutes - someone was sleeping maybe... Sunday morning?? Submitted By: Capt Mehran Wahid