The 2018 Kilauea volcanic activity of Hawaii: SAR analysis result by ALOS-2 data

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Crustal Deformation Observed by Synthetic Aperture Radar (SAR)

Released: May. 9, 2018, updated: May. 14, 2018, Japanese version of this page

Result of Analysis

Fig. 1. Descending SAR interferogram [PNG: 1.3MB]

Fig.2. SAR interferogram [PNG: 1.3MB]

Fig.3. MAI [PNG: 1.4MB]

Fig. Area

Area of interest

Fig.	Date	Time	Flight	Beam	Obs.	Incidence Angle	Bperp	KMZ
#		(UTC)	Dir.	Dir.	*Mode1 2*	(around epicenter)
1	2018-01-20 2018-05-12	22:09	Des.	Right	W-W	45-49°	-217m	0.5MB
2	2018-02-27	10:22	Asc.	Right	F-F	35°	-211m	1.0MB
	2018-05-08

*1 F:Fine (10m), *2 W: Normal
(cf. ALOS-2 Project / PALSAR-2 (JAXA))

Analysis by GSI from ALOS-2data of JAXA.
These results were obtained through the activity of the SAR analysis working group of the Coordinating Committee for Earthquake Prediction.

Model Calculation

　Fig.3.　Calculated crustal defomation and residual : SAR interferogram

Fig.4. Calculated crustal defomation and residual : MAI

**Table1. Parameters of the estimated model**
Lon （°）	Lat （°）	Dep (km)	Length (km)	Width (km)	Strike （°）	Dip （°）	Open （m)	Volume (m³)
-154.925	19.455	0.1	7.4	1.7	60	90	3.9	4.9×10⁷

※A uniform opening of a vertical dike is assumed for the model calculation

　　　　　　　　Fig.5. Schematic View

Satellite

ALOS-2 (Advanced Land Observing Satellite 2) launched by Japan Aerospace Exploration Agency on May 24, 2014

Copyrights and Credits

Contact

YARAI Hiroshi : Head of Division
KOBAYASHI Tomokazu : Chief Researcher