Data Services Newsletter

Volume 7 : No 2 : June 2005

MY Network - Providing Seismic Data from Malaysia

The Malaysian National Seismic Network now provides data from three stations (KKM, KSM and KUM) in real time to the IRIS DMC. The DMC has full metadata for these stations and as such are available in real time as well as from the archive beginning on February 17, 2005.

We thank Dr. Low Kong Chiew for the following contribution.

Malaysian National Seismic Network

The Malaysian Meteorological Department (MMD) operates a total of 12 seismological stations throughout the country, namely: five stations located in Peninsular Malaysia at Kulim, Kuala Lumpur (FRIM), Ipoh, Kluang and Kuala Terengganu; four stations located in Sabah at Kota Kinabalu, Kudat, Tawau and Telupid (Sandakan) and three stations located in Sarawak at Kuching, Sibu and Bintulu.

Map of the Malaysian National Seismic Network
Figure 1: Map of the Malaysian National Seismic Network

In December 2003 MMD upgraded the analogue seismographs to real time digital seismic network.The network consists of one field station (K. Lumpur) using digital leased line for real time data transmission and the remaining 11 field stations with VSAT telemetry and 128kbps digital leased-line communication from the service provider’s satellite gateway to the central processing centre in Kuala Lumpur for processing, analysis and dissemination..

Currently 3 field stations in Kulim, Kuching and K.Kinabalu consists of Quanterra Q330 digitizer and Baler-14 connected to Streckeisen STS-2 broadband sensor and the Kinemetrics Episensor. The remaining 9 field stations consists of SS-1 short-period sensors and Episensors.

The central processing center runs BRTT’s Antelope 4.6 data acquisition and processing software on (2) SUN Blade 150 workstations for real-time processing and post processing. The Antelope Real-Time System (ARTS) is also providing automatic event detection, arrival picking, event location and magnitude calculation. It provides graphical display and reporting within near-real-time after a local or regional event occurred.

by Low Kong Chiew (Malaysian Meteorological Department)

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