Present‐day kinematics of the East African Rift

@article{Saria2014PresentdayKO,
  title={Present‐day kinematics of the East African Rift},
  author={Elifuraha Saria and {\'E}ric Calais and D. Sarah Stamps and Damien Delvaux and Christopher J. H. Hartnady},
  journal={Journal of Geophysical Research: Solid Earth},
  year={2014},
  volume={119},
  pages={3584 - 3600}
}
The East African Rift (EAR) is a type locale for investigating the processes that drive continental rifting and breakup. The current kinematics of this ~5000 km long divergent plate boundary between the Nubia and Somalia plates is starting to be unraveled thanks to a recent augmentation of space geodetic data in Africa. Here we use a new data set combining episodic GPS measurements with continuous measurements on the Nubian, Somalian, and Antarctic plates, together with earthquake slip vector… 

Current block motions and strain accumulation on active faults in the Caribbean

The Caribbean plate and its boundaries with north and south America, marked by subduction and large intra‐arc strike‐slip faults, are a natural laboratory for the study of strain partitioning and

Kinematics of Active Deformation in the Malawi Rift and Rungwe Volcanic Province, Africa

Although the deep, wide basins of the Western rift, Africa, have served as analogues for the evolution of half‐graben basins, the geometry and kinematics of the border, intrabasinal, and transfer

Redefining East African Rift System kinematics

East African Rift System plate geometries and surface motions are some of the least constrained in the context of global plate motion models. In this study, we used GPS data to constrain Somalian

The offshore East African Rift System: Structural framework at the toe of a juvenile rift

The Cenozoic East African Rift System (EARS) extends from the Red Sea to Mozambique. Here we use seismic reflection and bathymetric data to investigate the tectonic evolution of the offshore branch

Structural Analysis of the Western Afar Margin, East Africa: Evidence for Multiphase Rotational Rifting

The Afar region in East Africa represents a key location to study continental breakup. We present an integrated structural analysis of the Western Afar Margin (WAM) aiming to better understand rifted

Present day plate boundary deformation in the Caribbean and crustal deformation on southern Haiti

Symithe, Steeve J. PhD, Purdue University, May 2016. Present Day Plate Boundary Deformation in the Caribbean And Crustal Deformation on Southern Haiti . Major Professor: Andrew W. Freed. The

Varying styles of magmatic strain accommodation across the East African Rift

Observations of active dike intrusions provide present day snapshots of the magmatic contribution to continental rifting. However, unravelling the contributions of upper crustal dikes over the

Seismic anisotropy and mantle dynamics beneath the Malawi Rift Zone, East Africa

SKS, SKKS, and PKS splitting parameters measured at 34 seismic stations that we deployed in the vicinity of the Cenozoic Malawi Rift Zone (MRZ) of the East African Rift System demonstrate systematic
...

References

SHOWING 1-10 OF 83 REFERENCES

Kinematics of the East African Rift from GPS and earthquake slip vector data

Abstract Although the East African Rift (EAR) System is often cited as the archetype for models of continental rifting and break-up, its present-day kinematics remains poorly constrained. We show

A kinematic model for the East African Rift

The kinematics of the East African Rift (EAR) is the least well‐known of all major plate boundaries. Here, we show that present‐day data (a GPS+DORIS geodetic solution and earthquake slip vectors)

The Somalia plate and the East African Rift System: present-day kinematics

SUMMARY The motion of the Somalia plate relative to the Nubia (Africa), Arabia and Antarctica platcs is re-evaluated using a new inversion method based on a Monte Carlo technique and a least absolute

Plate kinematic evidence for the existence of a distinct plate between the Nubian and Somalian plates along the Southwest Indian Ridge

[1] Previously, we estimated the angular velocity of the Nubian plate relative to the Somalian plate from an updated set of spreading rates and transform fault azimuths. We found that the

Seismic and aseismic deformation along the East African Rift System from a reanalysis of the GPS velocity field of Africa

The improvement of the geodetic coverage within the African Plate over the last decade together with an extended GPS position time-series allows improved accuracy in determining the velocity field

GPS constraints on continental deformation in the Africa‐Arabia‐Eurasia continental collision zone and implications for the dynamics of plate interactions

[1] The GPS-derived velocity field (1988–2005) for the zone of interaction of the Arabian, African (Nubian, Somalian), and Eurasian plates indicates counterclockwise rotation of a broad area of the

Evidence for motion between Nubia and Somalia along the Southwest Indian ridge

The East African rift marks the northern boundary of the Nubian (West African) and Somalian (East African) plates, and has formed by horizontal stretching due to the separation of these plates. South

Earthquakes in the Davie Ridge‐Madagascar region and the southern Nubian‐Somalian plate boundary

The largest earthquake sequence (mb up to 6.4 and M0 up to 5 × 1018 Nm) to have struck eastern Africa within the past 60 years occurred in May and June of 1985 off the coast of the

Mozambique earthquake sequence of 2006: High‐angle normal faulting in southern Africa

[1] We report source mechanisms for the six largest shocks of the Mozambique earthquake sequence of 22 February 2006. The main shock of this sequence is one of the largest (Mw ∼ 7.0) to occur in
...