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: 3343 items found
ppPage: 1 of 34pp
Event Time (UTC)Depth (km)Trigger MagLatitudeLongitudeRegion
2023-11-28 06:13:2225.6025.652.74-167.10FOX ISLANDS, ALEUTIAN ISLANDS
2023-11-27 21:46:4312.3326.5-3.56144.02NEAR N COAST OF NEW GUINEA, PNG.
2023-11-24 09:05:0316.0336.920.16145.55MARIANA ISLANDS
2023-11-22 04:47:3322.5236.7-14.99167.98VANUATU ISLANDS
2023-11-22 02:48:53119.1726.01.73127.17HALMAHERA, INDONESIA
2023-11-19 21:01:3152.6366.041.17142.25HOKKAIDO, JAPAN REGION
2023-11-17 08:14:1377.9856.75.59125.05MINDANAO, PHILIPPINES
2023-11-14 07:00:5610.06.1-4.0487.08SOUTH INDIAN OCEAN
2023-11-13 07:43:3210.06.1-3.92150.97NEW IRELAND REGION, P.N.G.
2023-11-10 20:45:1110.7256.1-6.16130.09BANDA SEA
2023-11-08 13:02:0610.06.7-6.15129.91BANDA SEA
2023-11-08 04:53:5110.07.1-6.46129.51BANDA SEA
2023-11-08 04:52:5210.06.7-6.38129.78BANDA SEA
2023-11-01 21:04:4636.0936.1-10.01123.73TIMOR REGION
2023-10-31 12:33:4335.06.6-28.75-71.57NEAR COAST OF CENTRAL CHILE
2023-10-31 11:10:56549.7886.5-17.52-179.01FIJI ISLANDS REGION
2023-10-29 04:32:0879.8586.0-19.42168.77VANUATU ISLANDS
2023-10-26 16:05:112.3645.956.05164.75KOMANDORSKIYE OSTROVA REGION
2023-10-23 10:10:1523.0926.0-29.95-177.52KERMADEC ISLANDS, NEW ZEALAND
2023-10-16 11:35:31187.3716.452.44-176.85ANDREANOF ISLANDS, ALEUTIAN IS.
2023-10-16 11:35:30253.06.753.10-175.50ANDREANOF ISLANDS, ALEUTIAN IS.
2023-10-15 03:36:006.3236.334.6162.11NORTHWESTERN AFGHANISTAN
2023-10-13 03:44:324.8646.0-51.80139.50WESTERN INDIAN-ANTARCTIC RIDGE
2023-10-12 02:41:12118.4015.652.79-171.26FOX ISLANDS, ALEUTIAN ISLANDS
2023-10-11 20:04:5811.6296.4-52.04139.63WEST OF MACQUARIE ISLAND
2023-10-11 00:41:5610.06.334.5862.07NORTHWESTERN AFGHANISTAN
2023-10-10 10:01:31247.2556.0-22.88-66.22JUJUY PROVINCE, ARGENTINA
2023-10-07 08:40:1374.0446.7-5.49146.18EASTERN NEW GUINEA REG., P.N.G.
2023-10-07 08:34:2653.4986.7-5.60146.13EASTERN NEW GUINEA REG., P.N.G.
2023-10-07 07:12:5010.06.334.5761.90NORTHWESTERN AFGHANISTAN
2023-10-07 06:41:0314.06.334.6161.92NORTHWESTERN AFGHANISTAN
2023-10-06 01:31:1710.06.130.04140.00SOUTHEAST OF HONSHU, JAPAN
2023-10-05 01:59:5810.06.129.96139.95SOUTHEAST OF HONSHU, JAPAN
2023-10-04 11:21:48121.746.45.34126.06MINDANAO, PHILIPPINES
2023-10-03 11:38:0411.9066.129.91139.97SOUTHEAST OF HONSHU, JAPAN
2023-09-28 14:40:26125.7356.0-15.57167.71VANUATU ISLANDS
2023-09-21 21:11:49188.4196.1-14.00167.19VANUATU ISLANDS
2023-09-21 01:13:589.05.554.90-160.34ALASKA PENINSULA
2023-09-20 14:45:5910.06.0-4.55-105.75CENTRAL EAST PACIFIC RISE
2023-09-18 13:21:23183.4836.326.43125.30NORTHEAST OF TAIWAN
2023-09-17 11:28:1110.05.650.80-130.30VANCOUVER ISLAND, CANADA REGION
2023-09-13 11:49:1510.06.1-36.22-97.94WEST CHILE RISE
2023-09-12 11:03:1841.2816.319.27121.22PHILIPPINE ISLANDS REGION
2023-09-11 12:51:34162.5446.01.13127.48HALMAHERA, INDONESIA
2023-09-09 14:43:249.8546.00.01119.77MINAHASSA PENINSULA, SULAWESI
2023-09-08 22:11:0118.5356.831.11-8.44MOROCCO
2023-09-08 09:09:5889.816.6-32.72-179.31SOUTH OF KERMADEC ISLANDS
2023-09-06 23:48:0541.3686.2-30.28-71.54NEAR COAST OF CENTRAL CHILE
2023-09-01 20:49:55145.9976.150.71156.27KURIL ISLANDS
2023-08-28 19:55:32515.7757.1-6.78116.57BALI SEA
2023-08-23 14:22:43568.7946.2-26.92-63.34SANTIAGO DEL ESTERO PROV., ARG.
2023-08-17 17:04:4910.06.34.42-73.51COLOMBIA
2023-08-17 16:41:0210.06.0-0.31-19.57CENTRAL MID-ATLANTIC RIDGE
2023-08-16 12:47:40192.9556.5-13.88167.16VANUATU ISLANDS
2023-08-14 13:51:5410.06.113.38147.54SOUTH OF MARIANA ISLANDS
2023-08-05 07:20:07597.6816.2-28.21-63.19SANTIAGO DEL ESTERO PROV., ARG.
2023-08-03 19:33:5141.475.654.66-161.04ALASKA PENINSULA
2023-08-01 16:49:489.615.754.60168.28KOMANDORSKIYE OSTROVA REGION
2023-07-26 12:44:3510.06.4-14.76167.91VANUATU ISLANDS
2023-07-24 02:49:58546.06.0-24.16178.76SOUTH OF FIJI ISLANDS
2023-07-19 00:22:0769.7276.512.81-88.13OFF COAST OF CENTRAL AMERICA
2023-07-17 03:05:10171.3716.6-38.19-70.37SOUTHERN ARGENTINA
2023-07-16 06:51:1949.4765.754.70-160.80ALASKA PENINSULA
2023-07-16 06:48:2232.5717.254.46-160.76ALASKA PENINSULA
2023-07-14 09:29:0135.06.315.03-93.88NEAR COAST OF CHIAPAS, MEXICO
2023-07-10 20:28:2510.06.620.04-61.08NORTH ATLANTIC OCEAN
2023-07-02 10:27:43224.9756.9-17.85-174.94TONGA ISLANDS
2023-06-25 07:16:597.0876.0-24.03-175.63SOUTH OF TONGA ISLANDS
2023-06-18 21:59:1710.06.0-48.6231.12SOUTH OF AFRICA
2023-06-18 20:30:2310.06.323.26-108.70GULF OF CALIFORNIA
2023-06-17 11:26:2135.06.0-23.44-175.43TONGA ISLANDS REGION
2023-06-16 08:11:3422.0346.0-23.57-175.88TONGA ISLANDS REGION
2023-06-15 18:06:27167.4047.2-22.98-177.21SOUTH OF FIJI ISLANDS
2023-06-15 02:19:23112.06.213.74120.74MINDORO, PHILIPPINES
2023-06-11 09:54:45123.2676.242.53141.92HOKKAIDO, JAPAN REGION
2023-06-08 20:31:457.1415.752.16177.76RAT ISLANDS, ALEUTIAN ISLANDS
2023-05-31 02:21:210.06.2-49.60163.92AUCKLAND ISLANDS, N.Z. REGION
2023-05-27 00:11:00223.9086.0-18.48-175.18TONGA ISLANDS
2023-05-26 10:03:2444.1756.235.62140.68NEAR EAST COAST OF HONSHU, JAPAN
2023-05-25 03:05:3310.06.68.89-77.12PANAMA-COLOMBIA BORDER REGION
2023-05-24 15:49:34166.4596.2-6.98129.53BANDA SEA
2023-05-23 06:41:5812.1436.1-23.00170.29SOUTHEAST OF LOYALTY ISLANDS
2023-05-21 18:44:0110.05.640.38-125.56OFF COAST OF NORTHERN CALIFORNIA
2023-05-21 15:45:1377.7916.1-10.27161.44SOLOMON ISLANDS
2023-05-21 14:56:4510.06.8-43.4439.37PRINCE EDWARD ISLANDS REGION
2023-05-20 02:09:5410.06.5-22.95170.48SOUTHEAST OF LOYALTY ISLANDS
2023-05-20 01:51:0135.9817.1-23.06170.46SOUTHEAST OF LOYALTY ISLANDS
2023-05-19 02:57:0637.7487.7-23.23170.69SOUTHEAST OF LOYALTY ISLANDS
2023-05-17 23:02:00252.06.415.15-90.84GUATEMALA
2023-05-10 16:02:00210.0977.6-15.60-174.61TONGA ISLANDS
2023-05-05 05:42:048.7126.237.54137.31NEAR WEST COAST OF HONSHU, JAPAN
2023-04-29 16:32:2677.06.256.21-156.69ALASKA PENINSULA
2023-04-28 03:13:51598.4676.6-25.27178.42SOUTH OF FIJI ISLANDS
2023-04-28 03:13:43576.7486.2-25.11178.46SOUTH OF FIJI ISLANDS
2023-04-24 20:00:5515.4627.1-0.7898.53SOUTHERN SUMATRA, INDONESIA
2023-04-24 00:41:5649.0357.1-29.95-177.84KERMADEC ISLANDS, NEW ZEALAND
2023-04-22 08:23:4744.1816.1-5.29125.58BANDA SEA
2023-04-19 09:06:0555.6746.3-6.00149.61NEW BRITAIN REGION, P.N.G.
2023-04-18 04:31:41562.4746.6-22.28179.39SOUTH OF FIJI ISLANDS
2023-04-14 09:55:45594.0287.0-6.03112.03JAVA, INDONESIA
ppPage: 1 of 34pp