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 Maintenance announcements
Maintenance announcements are posted here. These announcements regard the GDACS web site and the GDACS disaster alert system.
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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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         8/2/2015 2:12:32 AM
Carol Anthony Hi i cannot log in ,your system states password or user wrong, i have had this problem for more than 12 months, refusal to let me log in ,also current earthquakes in my area didn't come up and i are not getting any notifications at all any more i would appreciate your help Richard Submitted By:

         7/27/2015 1:02:22 PM
Disaster Alert Dear Sir/Madam We are based in Islamabad, Pakistan, our main service is Collecting all disaster alerts from all over the country including Terrorist activities. We can give trial period to your POC in Pakistan, who can evaluate our services. We are looking forward to work with you in future. Best Regards Team Alert Pakistan Submitted By: jahanzeb nazeer

         7/14/2015 3:17:43 PM
Unsubscribe Please unsubscribe me from all alerts. Submitted By: Thomas Budge

         7/14/2015 3:04:56 PM
How to subscribe to GDACS alert emails? Dear GDACS team I tried to find out several times on your website in the past but did not manage. :-( Q: how/where may I subscribe to your email GDACS alerts, please? THX and best regards, Bernd. Submitted By: Bernd Ilg

         7/14/2015 3:02:02 PM
How to subscribe to GDACS alert emails? Dear GDACS team I tried to find out several times on your website in the past but did not manage. :-( Q: how/where may I subscribe to your email GDACS alerts, please? THX and best regards, Bernd. Submitted By: Bernd Ilg

         7/8/2015 7:19:52 AM
GDACS disaster alert registration Hi, The link to GDACS disaster alert registration seems to be broken. It redirects us to a Microsoft iiS7 webpage. Can you please advise if this is a glitch? Many thanks. Submitted By: Ammeline Balanag

         7/7/2015 12:27:13 PM
Explanation of colors of symbols for earthquakes Hallo I cannot find an explanation of the color code of the earthquake symbols. White earthquake green earthquake etc Could you please tell the meaning? Thanks and regards George Submitted By: George Hees

         7/2/2015 12:48:41 PM
Fail to update alert subscription Hi I am unable to access my account to update the subscription for my organization. Can you please send me the logon details, I am not sure what e-.mai laddress i have registred byt the phone number is +47 41 21 54 97. Submitted By: Kjell Sigurd RØisli

         6/26/2015 10:30:33 PM
About: Download “All Alert Levels” from 2013-01-01 to current date To whom it may concern: Kindly, will you advice if there is a possibility to download in excel (or any other) format “All Alert Levels” from 2013-01-01 till current date? Thanks for your kind attention Carlos Pasquel 202-754-7011 Submitted By: Carlos Pasquel

         6/26/2015 9:34:46 AM
Problems with virtual osocc Hi Sorry to bother you with this simpel question but it really irritates me. Somehow I managed to sign up for all notifications on the virtual osocc. That means that I will receive a notification for almost everything that will happen on the vosocc. I have tried to unsign for the notification but it didn’t work. Can you please help me. My username is Lars Hellman MSB Sweden /Lars Submitted By: Lars Hellman