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Volcanic Explosivity |
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|
Year |
Onset |
End |
Index |
Summary |
|
2000 |
26-Feb |
8-Mar |
3 |
Regional fissure eruption with explosions,
pyroclastic flows and lava flows |
|
1991 |
17-Jan |
11-Mar |
3 |
An explosive eruption with lava flows from flank
vents, radial fissures and regional fissures |
|
1981 |
9-Apr |
16-Apr |
2 |
An explosive eruption with lava flows from a
radial fissure |
|
1980 |
17-Aug |
20-Aug |
3 |
An eruption with explosions, lava flows from
regional fissures and damage to land and
property |
|
1970 |
5-May |
5-Jul |
3 |
An eruption with explosions, lava flows from
radial fissures where evacuations and damage
took place |
|
1947 |
29-Mar |
21-Apr-48 |
4 |
A larger eruption with explosions, lava flows
from regional fissures, lahars, damage and
fatalities |
|
1913 |
25-Apr |
18-May |
2 |
An explosive eruption with lava flows from
regional fissures |
|
1878 |
27-Feb |
April |
2 |
An explosive eruption with lava flows from
regional fissures |
|
1845 |
2-Sep |
5-Apr |
4 |
A larger eruption with explosions, lava flows
from regional fissures, lahars and damage to the
surrounding areas. Ash made it as far as
Scotland. Fluorine in the tephra poisoned
and killed livestock. |
|
1766 |
5-Apr |
May |
4 |
A larger eruption with explosions, lava flows
from regional fissures, lahars, damage and
evacuations. This eruption was one of the
most voluminous in Hekla's history.
Fluorine in the tephra poisoned and killed
livestock. |
|
1725 |
2-Apr |
unknown |
1? |
An explosive eruption with lava flows from
regional fissures |
|
1693 |
13-Feb |
14-Sep |
4 |
A larger eruption with explosions, lava flows
from regional fissures, lahars, damage to
surrounding areas, evacuations and tsunami.
Tephra was carried as far as Norway, and the
high fluorine content of the ash poisoned
livestock. |
|
1636 |
8-May |
June |
3 |
An explosive eruption with lava flows from
regional fissures, lahars and damage to the
surrounding areas |
|
1597 |
3-Jan |
June |
4 |
A larger eruption with explosions, lava flows
from regional fissures, lahars and damage to the
surrounding areas |
|
1554 |
May |
June |
2? |
An explosive eruption with lava flows from
regional fissures |
|
1510 |
25-Jul |
unknown |
4 |
A larger eruption with explosions, lava flows
from regional fissures, lahars, damage to
surrounding areas and fatalities. Tephra
made it as far as 40 km away. |
|
1440 |
|
|
? |
An explosive eruption from regional fissures and
damage caused to the surrounding areas |
|
1389 |
~December 1 |
1390 |
3 |
An explosive eruption with lava flows from
radial and regional fissures, damage caused to
the surrounding areas and evacuations of the
area |
|
1341 |
19-May |
unknown |
3 |
An explosive eruption with lava flows from
regional fissures and damage to the surrounding
areas. Due to wind conditions, tephra was
deposited to the west and south east. High
fluorine content in the tephra was poisonous to
livestock. |
|
1300 |
11-Jul |
July 1301 |
4 |
A larger, explosive eruption with lava flows
from regional fissures, damage to the
surrounding areas and fatalities |
|
1222 |
|
|
2 |
An explosive eruption with lava flows from
regional fissures and damage to the surrounding
areas. Due to wind conditions, tephra was
deposited to the northeast. |
|
1206 |
4-Dec |
unknown |
3 |
An explosive eruption with lava flows from
regional fissures and damage to the surrounding
areas. Due to wind conditions, tephra was
deposited to the northeast. |
|
1158 |
19-Jan |
unknown |
4 |
An explosive eruption with lava flows from
regional fissures and damage to the surrounding
areas |
|
1104 |
15-Oct (+/- 45 days) |
unknown |
5 |
A large, explosive eruption with lava flows from
regional fissures and damage to the surrounding
areas and evacuations. A map on the
Hazards page shows how wide spread the ash fall
out was. |
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