About SPUD

SPUD Version 3.0

The Searchable Product Depository (SPUD) is the IRIS DMC's primary data product management system. Complementing the DMC's SEED and assembled data archives, which contain time series recordings, the SPUD system primarily contains derivative data products of other types (images, movies, etc.) created either at the DMC or by members of the community.

For users SPUD is the query and access point for these products. The web interfaces allow users to search for products using customized queries across product and event details. Users can search across all product types at once or within specific product types. SPUD also has web service interfaces for programmatic discovery and access to the data products.

If any products from SPUD are used in your research please be sure to cite the identified author of the product and the IRIS DMS [Citation Information].

About Ground Motion Visualization Products

The Ground Motion Visualization (GMV) illustrates how seismic waves travel away from the earthquake location by depicting the recorded wave amplitudes at each seismic station location using colored symbols. For more information on GMVs visit the GMV product page.

Two types of GMVs are produced:

  • Vertical-component GMV:
    Produced for US events of magnitude 5.5 or larger and global events of magnitude 6 or larger. The symbol colors represent the amplitude of the vertical ground motion, as detected by the station's seismometer.
  • 3-Component GMV:
    Produced only for events with magnitude 7 and larger use 'tailed' symbols to show direction and amplitude of the normalized horizontal motion. Symbol colors also represent the amplitude of the vertical ground motion, as detected by the station's seismometer.

This product is automatically generated without human review.

GMV Query Help

This page queries for GMV products.

Citing Ground Motion Visualization Products

If you use GMVs in publications, please cite according to the instructions at:



— Chuck Ammon, Professor of Geosciences at Penn State’s original concept and visualizations. Read more
— Bob Woodward at IRIS - adapted the visualization code to MATLAB

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Event Criteria
Depth (km)
Max Lat:
Min Lon: Max Lon:
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Query Results: 2874 items found
ppPage: 1 of 29pp
Event Time (UTC)Depth (km)Trigger MagLatitudeLongitudeRegion
2020-11-25 22:56:0410.06.1-61.93154.82BALLENY ISLANDS REGION
2020-11-22 00:54:5619.656.1-34.62-73.07OFF COAST OF CENTRAL CHILE
2020-11-11 00:48:43416.936.0-19.74-177.55FIJI ISLANDS REGION
2020-11-06 23:49:185.836.0-62.28-58.06SOUTH SHETLAND ISLANDS
2020-11-03 02:40:5510.06.0-44.38-79.35OFF COAST OF SOUTHERN CHILE
2020-10-30 11:51:2610.07.037.9026.80DODECANESE ISLANDS, GREECE
2020-10-28 04:13:41233.225.553.20-173.42ANDREANOF ISLANDS, ALEUTIAN IS.
2020-10-23 07:04:32463.96.1-25.61-179.96SOUTH OF FIJI ISLANDS
2020-10-23 01:46:1710.06.0-36.40-97.14WEST CHILE RISE
2020-10-20 04:07:0713.785.654.29-159.67SOUTH OF ALASKA
2020-10-19 21:45:2837.335.954.42-159.96SOUTH OF ALASKA
2020-10-19 21:32:1915.525.554.24-159.65SOUTH OF ALASKA
2020-10-19 21:06:2234.395.754.67-159.64SOUTH OF ALASKA
2020-10-19 21:05:5727.455.854.43-159.63SOUTH OF ALASKA
2020-10-19 20:54:4040.127.554.66-159.68SOUTH OF ALASKA
2020-10-10 13:14:5710.06.0-28.62-112.39EASTER ISLAND REGION
2020-10-08 14:22:3936.995.752.72-168.26FOX ISLANDS, ALEUTIAN ISLANDS
2020-10-08 07:35:32103.496.3-6.11146.17EASTERN NEW GUINEA REG., P.N.G.
2020-10-06 10:11:46628.526.0-18.02-178.49FIJI ISLANDS REGION
2020-10-06 05:54:5030.425.654.84-159.86SOUTH OF ALASKA
2020-10-01 10:34:48109.226.0-6.09148.66NEW BRITAIN REGION, P.N.G.
2020-10-01 01:13:3735.06.4-19.50-174.23TONGA ISLANDS
2020-09-27 04:12:1713.775.651.93-169.77FOX ISLANDS, ALEUTIAN ISLANDS
2020-09-26 17:10:2210.06.2-48.0631.67SOUTH OF AFRICA
2020-09-19 06:38:4617.64.5434.04-118.08SOUTHERN CALIFORNIA
2020-09-18 21:43:5910.06.90.95-26.85CENTRAL MID-ATLANTIC RIDGE
2020-09-15 04:12:1710.06.1-15.15179.79FIJI ISLANDS
2020-09-15 03:41:27329.736.455.96158.49KAMCHATKA PENINSULA, RUSSIA
2020-09-12 02:44:1032.096.138.76142.25NEAR EAST COAST OF HONSHU, JAPAN
2020-09-11 07:35:5640.376.3-21.38-69.92NORTHERN CHILE
2020-09-07 06:12:3910.06.2-17.09168.50VANUATU ISLANDS
2020-09-06 15:23:43119.16.36.28125.84MINDANAO, PHILIPPINES
2020-09-06 06:51:1910.06.67.70-37.24CENTRAL MID-ATLANTIC RIDGE
2020-09-06 02:59:158.246.2-17.15167.58VANUATU ISLANDS
2020-09-06 01:16:5830.716.3-30.34-71.56NEAR COAST OF CENTRAL CHILE
2020-09-01 21:09:1714.266.5-27.93-71.39NEAR COAST OF NORTHERN CHILE
2020-09-01 04:30:0216.986.3-28.04-71.31NEAR COAST OF CENTRAL CHILE
2020-09-01 04:09:2823.06.8-28.01-71.24NEAR COAST OF CENTRAL CHILE
2020-08-31 17:24:0410.06.2-4.0770.25CHAGOS ARCHIPELAGO REGION
2020-08-30 21:20:2810.06.50.87-29.70CENTRAL MID-ATLANTIC RIDGE
2020-08-25 19:08:5323.736.1-5.49151.84NEW BRITAIN REGION, P.N.G.
2020-08-24 21:51:1027.246.09.60-84.60COSTA RICA
2020-08-21 04:09:52627.336.9-6.67123.49BANDA SEA
2020-08-18 22:29:2426.06.9-4.28101.23SOUTHERN SUMATRA, INDONESIA
2020-08-18 22:23:5922.06.8-4.35101.13SOUTHERN SUMATRA, INDONESIA
2020-08-18 00:03:4810.06.712.01124.11SAMAR, PHILIPPINES
2020-08-16 20:05:4810.05.751.10-171.13FOX ISLANDS, ALEUTIAN ISLANDS
2020-08-13 06:39:5912.685.653.55-163.75UNIMAK ISLAND REGION, ALASKA
2020-08-09 14:58:0037.45.755.99-158.83ALASKA PENINSULA
2020-08-09 12:07:373.75.136.48-81.09NORTH CAROLINA
2020-08-08 14:42:5442.115.554.84-161.34ALASKA PENINSULA
2020-08-06 23:36:4410.06.3-41.7542.38PRINCE EDWARD ISLANDS REGION
2020-08-05 12:05:36174.756.4-16.11168.08VANUATU ISLANDS
2020-08-01 19:22:0710.06.0-3.27148.57BISMARCK SEA
2020-08-01 17:09:01479.566.47.30124.14MINDANAO, PHILIPPINES
2020-07-29 09:12:1640.325.654.97-160.33ALASKA PENINSULA
2020-07-28 08:03:4441.266.154.87-161.14ALASKA PENINSULA
2020-07-27 19:34:3944.135.555.10-160.48ALASKA PENINSULA
2020-07-26 00:53:5910.06.3-60.78-25.31SOUTH SANDWICH ISLANDS REGION
2020-07-22 20:07:1910.06.333.1386.84XIZANG
2020-07-22 06:16:1817.676.154.93-159.04SOUTH OF ALASKA
2020-07-22 06:12:4210.07.855.10-158.47ALASKA PENINSULA
2020-07-18 15:32:3510.06.2-15.28-172.65SAMOA ISLANDS REGION
2020-07-17 14:03:4210.06.111.9894.89ANDAMAN ISLANDS, INDIA REGION
2020-07-17 02:50:2379.797.0-7.84147.77EASTERN NEW GUINEA REG., P.N.G.
2020-07-06 22:54:46528.666.6-5.64110.68JAVA SEA
2020-07-06 18:16:1812.416.212.05140.25W. CAROLINE ISLANDS, MICRONESIA
2020-07-05 08:53:3510.05.553.37-160.43SOUTH OF ALASKA
2020-06-25 21:05:1810.06.435.6382.45XIZANG
2020-06-24 17:40:494.665.8136.45-117.98CALIFORNIA-NEVADA BORDER REGION
2020-06-23 15:29:0526.257.416.03-95.90OAXACA, MEXICO
2020-06-21 19:07:5510.06.066.58-18.51ICELAND REGION
2020-06-18 12:49:5310.07.4-33.29-177.84SOUTH OF KERMADEC ISLANDS
2020-06-13 21:08:30622.06.218.92145.10MARIANA ISLANDS
2020-06-13 15:51:24164.796.728.95128.30RYUKYU ISLANDS, JAPAN
2020-06-10 19:58:4910.06.0-15.84-13.05SOUTHERN MID-ATLANTIC RIDGE
2020-06-04 08:49:39106.866.42.92128.25HALMAHERA, INDONESIA
2020-06-04 01:32:117.095.5335.61-117.43CENTRAL CALIFORNIA
2020-06-03 07:35:3496.846.8-23.30-68.42NORTHERN CHILE
2020-05-31 05:09:35153.46.0-15.27-70.66SOUTHERN PERU
2020-05-27 07:09:1010.06.1-17.16167.86VANUATU ISLANDS
2020-05-22 08:46:0610.06.122.40-108.16OFF COAST OF CENTRAL MEXICO
2020-05-18 07:02:3410.05.540.83-127.23OFF COAST OF NORTHERN CALIFORNIA
2020-05-16 13:37:529.15.953.83-119.57ALBERTA, CANADA
2020-05-15 11:03:272.86.538.16-117.88NEVADA
2020-05-12 22:41:12112.46.6-12.11166.57SANTA CRUZ ISLANDS
2020-05-07 11:21:19466.26.1-4.45154.71SOLOMON ISLANDS
2020-05-06 13:53:56107.06.8-6.80129.86BANDA SEA
2020-05-02 12:51:0617.06.634.2125.71CRETE, GREECE
2020-04-25 02:53:0516.96.3-6.51154.30SOLOMON ISLANDS
2020-04-19 20:39:0641.76.438.92142.05NEAR EAST COAST OF HONSHU, JAPAN
2020-04-18 08:25:37453.86.627.14140.11BONIN ISLANDS, JAPAN REGION
2020-04-16 08:04:3710.06.016.93-85.71NORTH OF HONDURAS
2020-04-14 01:06:4410.06.0-30.38-176.32KERMADEC ISLANDS REGION
2020-04-12 06:57:4710.06.1-36.9677.45MID-INDIAN RIDGE
2020-03-31 23:52:3110.06.544.45-115.14WESTERN IDAHO
2020-03-26 15:38:0354.36.15.69125.18MINDANAO, PHILIPPINES
2020-03-25 02:49:2156.67.548.99157.69EAST OF KURIL ISLANDS
2020-03-22 22:38:0510.06.1-4.68-105.06CENTRAL EAST PACIFIC RISE
2020-03-18 17:45:3710.46.3-11.11115.06SOUTH OF BALI, INDONESIA
ppPage: 1 of 29pp