| Status | Description |
| 1 | No Data Is Being Recorded |
| 2 | Partial Data Loss Or Gaps In Recorded Data |
| 3 | No Data Loss - Minor Technical Problems |
| 4 | No Data Loss - Long-term Problems |
| 5 | Fully Operational |
Each station has a link to its GSN station browser entry.
This table was created on 1/16/2007 (2007,16) 11:10 MST.
| Station | Status | Open Date | Comments | Action | Action Date | Contact |
|---|---|---|---|---|---|---|
| ADK | 3 | 6/20/2006 | Comm link problem between the DP and the DA. During a visit by ASL FE an interfering set of radios operated by UNAVCO was discovered on 12/05/06. | Working with UNAVCO as well as independantly to rectify interferance. New radio sets are being investigated | 12/1/2006 | EPK |
| ANMO | 3 | 8/1/2006 | CMG-3TB has coherant noise. Needs seismometer replacement. | Needs seismometer replacment when one is available. | 7/23/2006 | NDZ |
| CCM | 1 | 11/14/2006 | Comm link between Da/DP down | CVP | ||
| DAV | 3 | 1/14/2002 | STS-1Z response N&E Are dead in question. All insturments need to be resetup. Vault has water leaks. | Security restrictions prevent us from making a visit. Operator replaced Z cable and "it looks better". | 6/2/2005 | DMA |
| ENH | 2 | 4/23/2006 | STS-2 down | A replacement host box shipped to site. | 11/17/2006 | DMA |
| GNI | 2 | 12/19/2006 | Channels 1-6 died QAP or QDP problem | Replacement parts being shipped | NDZ | |
| HKT | 1 | 12/9/2006 | Station not accessable via VSAT visit required | SCR | ||
| HKT | 3 | 8/14/2006 | STS-1 E/W goijg to stop needs centering. Message sent to local op | Checking to see if Steve R. will be able to stop by the site. | 11/16/2006 | DMA |
| HNR | 2 | 1/27/2006 | STS-2 N has lost amplification. | Asked local operator one more time if they would attempt repair. | 11/16/2006 | DMA |
| HNR | 4 | 9/28/2005 | KS54000 has developed a low freq noise problem | Seismometer will need to be replaced. | 9/28/2005 | DMA |
| JOHN | 1 | 6/1/2004 | Station un-installed 06/05/05. | Solar Power system had partial failure VSAT and Q-680 returned to ASL | 6/5/2005 | MAS |
| KOWA | 1 | 3/11/2002 | Comm-link radios are all defective, seismometers are corroded, vault is a corrosive environment. Local helper damaged CMG-3T seismometer during maintenance visit. New equipment hut to be built by CTBTO. | The station is inoperative and will have to be reinstalled when the CTBTO equipment goes in. | 9/27/2006 | NDZ |
| LSA | 1 | 4/14/2006 | STS-2 east dies on occasion and self heals. | NDZ | ||
| LVC | 1 | 12/9/2006 | Station shuts down and needs reset. An I-Boot remote controller relay is on order to install here to allow remote resets | EPK | ||
| MAKZ | 2 | 2/4/2003 | The data from the STS-2 are unuseable due to spiking. The problem started out slow but quickly got worse. | Local operator was here for 2 weeks for training and to discuss problems. Power to site is main problem. Working on site upgrades. | 9/29/2006 | MAS |
| MBWA | 1 | 12/1/2006 | Lightning struck station. New DAU to be sent | New DAU needs to be tested and sent. | 12/2/2006 | DMA |
| MSKU | 1 | 11/14/2006 | CMG 3 pegged Automatic recenter is not working. | Local Tech has worked very diligently and has determined seis is bad, replacement required. | 12/7/2006 | MAS |
| MSKU | 2 | 9/28/2006 | STS-1's not functioning because of corroded FBE's | New FBE boxes need to tested and sent. | 10/15/2006 | NDZ |
| PAB | 3 | 12/28/2006 | STS-1 E-W dead | Station Operator attempted repair to no avail. Further Investigation needed | WSS | |
| PAYG | 3 | 3/21/2005 | CMG-3TB blowing fuses possibly due to low battery voltage = high current. | Confirmed the problem is downhole. | 5/3/2006 | NDZ |
| PTGA | 1 | 1/1/2002 | Station has numerous problems including seismometer and communication issues. | FE visited the site August 2004. Station needs complete re-installation as a local site in cooperation with CTBTO. | 9/13/2005 | MAS |
| RAR | 2 | 9/1/2005 | No data from the KS54000. Seismometer is stuck in bore hole. | Seismometer is stuck in the bore hole. FE could not remove it. A trip to the station with the proper removal equipment will need to be scheduled. | 9/19/2006 | EPK |
| RCBR | 1 | 8/29/2006 | Station down due to interference in DA/DP radio link during the day. Problem is not apparent at night. | "Next week" ANATEL (frequence police) will verify if RF interference is happening during the daytime. | 8/25/2006 | GSG |
| RCBR | 3 | 9/9/2006 | 54000 #1 component not producing data | Most likely a defective board in the electronic stack. Will require on site maintenance. | 10/6/2006 | DMA |
| RSSD | 3 | 12/19/2006 | KS54000 Z Bad | Possible new insrument needed | NDZ | |
| SAML | 1 | 12/30/2006 | VSAT equipment needs rest due to low power condition | MAS | ||
| SAML | 3 | 4/29/2005 | We started to see a lot of "pulses" on the 54000 horizontal data starting at 2005,082. | This will require a Field Engineer visit. | 5/1/2005 | MAS |
| SAML | 4 | 8/9/2004 | FBA-23 data is tracking the charge-discharge cycle of the Photo Voltaic (PV) array. | This will require a FE visit and a DC-DC converter for isolation. | 8/9/2004 | MAS |
| SDV | 1 | 12/28/2006 | Possible CTBTO vsat issues | Need to check with CTBTO | DMA | |
| TEIG | 1 | 10/12/2006 | #1 channel on KS36000i seismometer lost | Will require FE maintenance visit to replace the seismometer. This is a 36000 which will be replaced with a 54000. | 10/12/2006 | DMA |
| TRIS | 4 | 7/13/2004 | Spiking on FBA-23 data channels | Grounding the seismometer case did not solve the problem. Have not yet determined the cause of the noise. | 9/19/2006 | EPK |
| ULN | 2 | 12/12/2006 | DA/DP Comm link ratty | CVP | ||
| WAKE | 1 | 8/29/2006 | Island evacuated due to impending typhoon Power has been shut down and VSAT dish parked | Site has been destroyed by the typhoon. It will require a complete re-install if economically feasable.. | 9/21/2006 | MAS |
| XMAS | 2 | 12/27/2000 | STS-2 sensor needs to be replaced possibly due to moisture in cables and instrument. Suspect vault is leaking. | Replacement overpack vault, STS-2 seismometer and cables need to be installed. MOU has been signed with Kiritimati. | 6/2/2005 | NDZ |
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U.S. Geological Survey
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Last update: March 20, 2003
URL: http://aslwww.cr.usgs.gov/docs/Stations/stn_prblm_rprts/Problems.html
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