 Mauga Umi Seamount |    |
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| Index | SMNT-005N-1731E |
Classification | Small C2 Seamount |
| Location | 0º 29.67' N
173º 08.08' E |
Elongation
Irregularity | 1.75 ± 0.17
1.43 ± 0.66 |
| Plate Age | 134.7 - 136.1 Ma |
Oceanic Province | Abyssal Plain |
| Region | Gilberts Ridge |
Alternative Names | |
| Plate | Pacific Plate |
Age | |
| Tectonic Setting | Hotspot Trail |
Seamount Top | 1455 m |
| Volume | 1092 km3 |
Ocean Bottom | 3905 m |
Shelf Edge
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Volcanic Activity | Extinct |
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| | Description | | Mauga Umi Seamount is located at 0¿ 29.5' N, 173¿ 8.4' E and is part of the Gilberts Ridge region on the Pacific Plate. The seamount is 2325 m high with the top at -1500 m and the ocean bottom at -3825 m. It has a volume of 1414 km3 and is elongated in a northwest, southeast direction with an azimuth at approximately 137¿. No prominent rifts are seen. There may be some mass wasting along the southwest side of the seamount. Mauga Umi is on the southwestern edge of a plateau, which it shares with Tofe Tolu Seamount. |
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Mauga Umi Seamount -- Multibeam data merged with predicted satellite bathymetry |
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Mauga Umi Seamount -- Multibeam bathymetry |
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Mauga Umi Seamount -- Predicted satellite bathymetry |
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Mauga Umi Seamount -- Residual bathymetry |
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Gilberts Ridge -- Multibeam data merged with predicted satellite bathymetry |
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Gilberts Ridge -- Multibeam bathymetry |
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Gilberts Ridge -- Predicted satellite bathymetry |
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Gilberts Ridge -- Residual bathymetry |
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Mauga Umi Seamount -- Multibeam data merged with predicted satellite bathymetry |
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Mauga Umi Seamount -- Multibeam bathymetry |
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Mauga Umi Seamount -- Predicted satellite bathymetry |
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Mauga Umi Seamount -- Residual bathymetry |
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Gilberts Ridge -- Multibeam data merged with predicted satellite bathymetry |
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Gilberts Ridge -- Multibeam bathymetry |
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Gilberts Ridge -- Predicted satellite bathymetry |
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Gilberts Ridge -- Residual bathymetry |
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| Depth |
Azimuth |
Area |
Length |
Width |
Elongation |
Contour |
Ellipse |
Irregularity |
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| m |
degrees |
km2 |
km |
km |
ratio |
km |
km |
ratio |
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| 2680 |
140.1 |
238.1 |
26.9 |
14.2 |
1.897 |
128.4 |
58.9 |
2.180 |
| 2925 |
141.9 |
472.5 |
33.4 |
18.7 |
1.785 |
98.5 |
81.9 |
1.203 |
| 3170 |
140.9 |
671.8 |
37.9 |
24.2 |
1.567 |
87.3 |
95.3 |
0.916 |
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| 53 % Multibeam Coverage |
1.75 ± 0.17 |
1.43 ± 0.66 |
| 2450 m High |
| 1 Summit |
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