During 13-19 February lava-dome growth at Mount St. Helens continued.
At 23-29 January lava-dome growth at Mount St. Helens continued. A steam plume that rose from the dome and slightly above the crater rim was visible on 25 January.
24-30 October lava-dome growth at Mount St. Helens continued.
From 19-25 September lava-dome growth at Mount St. Helens continued.
No significant changes have been registered at Mt. St. Helens. CVO's instruments monitoring the volcano indicate that the lava dome continues be active and grow slowly.
Data from deformation-monitoring instruments indicated that during 22-28 August lava-dome growth at Mount St. Helens continued. Seismicity persisted at low levels, punctuated by M 1.5-2.5, and occasionally larger, earthquakes. Clouds occasionally inhibited visual observations.
Data from deformation-monitoring instruments and observations from a remote camera showed that during 28 March-3 April, lava-dome growth at Mount St. Helens continued. Seismicity persisted at low levels, punctuated by M 1.5-2.5 and occasionally larger earthquakes. On 3 April, a GPS unit on an active spine showed W-ward movement at a rate of about 30 cm/day.
Over the past weeks and months, the lava dome and spine inside Mount St. Helens'crater continued to grow, accompanied by generally low levels of seismicity.
Wed, 17 Jan 2007, 23:13
The lava dome at Mount St. Helens continues to grow slowly, accompanied by low-level seismicity.
Read allThu, 23 Nov 2006, 00:12
The lava dome at Mount St. Helens continues to grow, and producing a prominent spine that rises by about 2-3 meters per day. Small tremors are frequently registered at the volcano, believed to be caused by the movements of the spine being pushed up by pressurized magma in the conduit.
Read allTue, 30 May 2006, 17:13
On 29 May at 09h08 local time, an ash and gas plume rose to 5-6 km altitude above the new lava dome of Mt. St. Helens. As CVO reports, the event was not caused by explosive activity, but rather intense degassing and a partial collapse of the new lava dome, accompanied by a quake of magnitude 3.1.
Tue, 9 May 2006, 07:41
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The 300 ft spine of Mt. St. Helens as on 6 May, 2006 (USGS photo).
The lava dome inside Mt. St. Helens'crater continues to grow. It has been forming a giant, spectacular spine, about 300 ft high and growing at about 4-5 in (ca. 12-15cm) per day.
The park has reopened the Johnston Ridge Observatory viewing point.
Thu, 13 Apr 2006, 08:45
Growth of the new lava dome inside the crater of Mount St. Helens continued during 5-10 April, accompanied by low rates of seismicity, low emissions of steam and volcanic gases, and minor production of ash.
Read allSat, 18 Feb 2006, 15:13
No big changes: the growth of the new lava dome inside the crater of Mt. St. Helens continues, accompanied by low rates of seismicity, low emissions of steam and volcanic gases, and minor production of ash.
Thu, 9 Feb 2006, 10:01
The lava dome of Mt. St. Helens continues slowly, accompanied by low rates of seismicity, low emissions of steam and volcanic gases, and minor production of ash.
Thu, 9 Jun 2005, 00:07
Over the past week, the new lava dome with a prominant spine continued to grow, at rates of up to several cm per day in some locations. Seismicity remains at low levels and only minor emissions of ash occrred.
Wed, 1 Jun 2005, 22:18
During 25-31 May, growth of the new lava dome inside the crater of Mount St. Helens continued, accompanied by low rates of seismicity, low emissions of steam and volcanic gases, and minor production of ash. Lava extrusion continued at the N end of the new lava dome, while the high spines continued to crumble. Other parts of the lava dome moved at the relatively low velocity of about 0.3 m per day or remained stagnant. St Helens remained at Volcano Advisory (Alert Level 2); aviation color code Orange.
Read allMon, 4 Apr 2005, 10:29
CVO (the Cascades Volcano Ovservatory, USGS) reports that the lava dome inside Mt. St. Helens'crater continues slowly to grow. Seismicity is low, and other eruptive activiy is limited to small emissions of steam and volcanic gases, and minor production of ash.
CVO warms of the danger of small lahars and the possibility that the eruption might intensify with little or no warning at any time.
Read allTue, 22 Mar 2005, 10:50
As press reports on March 22, some areas around Mt. St. Helens volcano, that had been closed for visitors after the reawakening of Mt. St. Helens in Oct. 2004 are being reopened, since activity has been drastically decreasing. This includes the Johnston Ridge Observatory, was evacuated on October 2 as volcanic activity increased and now scheduled for reopening on 6th of May...
At the moment, the mountain will remain closed above the Loowit Trail, roughly the tree line, keeping the popular south-side climbing route off limits. Ridge-top trails north of the volcano and the Mount Margaret backcountry, a permit-only area, will reopen as conditions permit. Parts of the Loowit and Truman trails on the north side will stay closed because of possible mud flows.
