Moho and Guralp comparison

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Bob Hammond

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Jan 6, 2026, 7:33:19 PM (4 days ago) Jan 6
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This is a small local blast recorded today on both the Moho and the Guralp CMG-40T which are on my basement floor. .  The blast site is about 1.6 km from the instruments.

Blast.jpg

IMG_3175.JPG

Bob Hammond

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Jan 6, 2026, 7:44:59 PM (4 days ago) Jan 6
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These are the blast records from the Earthworm/Swarm system:

Guralp Blast.jpg
MOHO Blast.jpg

Pete Fleming

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Jan 6, 2026, 8:03:26 PM (4 days ago) Jan 6
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Hi Bob,

Nice! Any chance you could share how you connected the Guralp to the shark recorder?

Thanks,
Pete

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Bob Hammond

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Jan 7, 2026, 8:12:28 AM (3 days ago) Jan 7
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Hi Pete,

Here's some info on connecting the Guralp to the Shark board:

CMG-T40 Pinout.JPG

Capture.JPG




Jim CMG-T40.JPG

shark3_input.png

Bob Hammond

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Jan 7, 2026, 8:26:12 AM (3 days ago) Jan 7
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