Chapter 4: Additional Graphs
Graph 1: Maximum length of flow and vent location frequency graph ................................3
Graph 2: Maximum length and maximum explosivity frequency graph ...............................4
Graph 3: Maximum flow length and principal eruption style frequency graph. ...................5
Graph 4: Average width by time ............................................................................................6
Graph 5: Average width of lava flows and vent location frequency graph. ..........................7
Graph 6: Average width of flows and maximum explosivity frequency graph......................8
Graph 7: Average width of flows and main eruption style frequency graph. .......................9
Graph 8: Maximum width by time .......................................................................................10
Graph 9: Maximum width and vent location frequency graph. ..........................................11
Graph 10: Maximum length to average width ratio by time ...............................................12
Graph 11: Maximum length to average width ratio and maximum explosivity frequency
graph. ...................................................................................................................................13
Graph 12: Maximum length to average width ratio and main eruption style frequency
graph. ...................................................................................................................................14
Graph 13: Area of main lava flows over time. .....................................................................15
Graph 14: Area and maximum explosivity frequency graph. ..............................................16
Graph 15: Area and main eruption style frequency graph. .................................................17
Graph 16: Thickness of flows over time. ..............................................................................18
Graph 17: Thickness and maximum explosivity frequency graph. ......................................19
Graph 18: Thickness of lava flows and principal eruption style frequency graph. ..............20
Graph 19: Volume with maximum explosivity frequency graph .........................................21
Graph 20: Volume and principal eruption style frequency graph .......................................21
Graph 21: Effusion rate over time. ......................................................................................22
Graph 22: Effusion rate and vent location frequency graph. ..............................................23
Graph 23: Effusion rate and maximum explosivity frequency graph. .................................24
Graph 24: Length by area of lava flow .................................................................................25
Graph 25: Maximum length of flows and average width. ...................................................25
Graph 26: Length to width ratio by area of flow. ................................................................26
Graph 27: Thickness by maximum length. ...........................................................................26
Graph 28: Duration of active lavas outside of the crater and the resulting area of the flow
produced. .............................................................................................................................27
Graph 29: Effusion rate and duration. Circles represent compound flow-fields. ...............27
Graph 30: Effusion rate and volume. Circles represent compound flow-fields. .................28
Graph 33: Volume and thickness. Circles represent compound flow-fields. ......................28
Graph 34: Effusion rate and the average width of the flows. Circles represent compound
flow-fields.............................................................................................................................29
Graph 35: Effusion rate and length to width ratio. ..............................................................29
Graph 36: Effusion rate and aspect ratio. Circles represent compound flow fields............30
Frequency (Summit)
Frequency (Lateral)
Frequency (Eccentric)
7
6
Frequency
5
4
3
2
1
0
0-1.00
1.01-2.00
2.01-3.00
3.01-4.00
4.01-5.00
5.01-6.00
6.01-7.00
Maximum length groups (km)
Graph 1: Maximum length of flow and vent location frequency graph
7.01-8.00
6
Max. Explosivity: Effusive. Frequency flow length.
Max. Explosivity: strombolian. Frequency flow length
Max. Explosivity: vulcanian., Frequency flow length
Max. Explosivity: Sub-plinian. Frequency flow length
5
Frequency
4
3
2
1
0
0-1.00
1.01-2.00
2.01-3.00
3.01-4.00
4.01-5.00
5.01-6.00
6.01-7.00
Maximum length groups (km)
Graph 2: Maximum length and maximum explosivity frequency graph
7.01-8.00
Main style: Effusive. Frequency length flows.
Main style: Eff-Str. Frequency length flows.
Main style: strombolian. Frequency length flows.
Main style: Str-Vulc. Frequency length flows.
Main style: vulcanian. Frequency length flows.
Main style: Sub-plinian. Frequency length flows.
6
5
Frequency
4
3
2
1
0
0-1.00
1.01-2.00
2.01-3.00
3.01-4.00
4.01-5.00
5.01-6.00
6.01-7.00
Maximum length groups (km)
Graph 3: Maximum flow length and principal eruption style frequency graph.
7.01-8.00
0
Date of activity
Graph 4: Average width by time
28/11/1926
27/11/1926
10/08/1928
03/08/1927---08/06/1929
03/06/1929
11/02/1935
20/11/1934
12/02/1935
27/03/1936
22/08/1935 - 31/05/1935
08/08/1939 - 09/08/1939
05/01/1944
16/12/1942 - 23/02/1944
06/01/1944
03/07/1895 - 07/09/1899
02/02/1906
01/10/1904 - 22/04/1906
04/04/1906
18/12/1875 - 15/12/1881
01/05/1885
01/02/1884 -- 01/07/1886
02/05/1885
20/04/1887 - 30/04/1889
05/02/1850 - 16/02/1850
14/12/1854 - 30/04/1855
19/12/1855 - 26/05/1858
01/01/1862 - 09/02/1864
31/05/1868
01/12/1867 - 26/11/1868
15/11/1868
12/01/1871
01/12/1870
13/01/1871
23/04/1872
01/05/1871 -- 30/04/1871
17/12/1875
01/05/1872
23/12/1832
20/08/1831
25/05/1833
21/08/1834
1701/1834 -- 15/06/1833
01/01/1835 - 31/12/1838
04/01/1839 - 19/09/1841
10/09/1810
06/09/1809 -- 28/02/1812
31/12/1811
23/09/1810
01/01/1812
22/12/1817 - 26/12/1817
21/10/1822 - 16/11/1822
01/12/1787 - 31/07/1788
16/06/1794
14/01/1796
06/07/1794 -- 05/07/1794
02/12/1754 - 15/03/1755
16/03/1755
06/01/1761
23/12/1760 -- 27/03/1759
01/07/1764
15/12/1766
28/03/1766 -- 27/03/1766
27/10/1767
19/10/1767
01/05/1770 - 30/04/1771
03/08/1774
02/02/1774
04/08/1774
03/04/1776
20/12/1775 - 01/12/1774
29/07/1779 - 13/08/1779
- 12/04/1694
03/10/1685
30/04/1694
14/09/1697
15/08/1696 -- 30/07/1696
09/01/1698
15/09/1697
18/05/1698
10/01/1698
15/07/1698
19/05/1698
16/07/1698 - 30/06/1701
19/05/1704 - 23/05/1704
20/07/1706 - 28/07/1707
11/06/1712
30/06/1714
15/06/1714 -- 24/10/1712
19/06/1717
02/09/1718
26/12/1717 - 21/12/1717
30/04/1721
28/05/1720 - 07/06/1721
01/05/1721
30/09/1724 - 09/01/1725
15/08/1728
10/01/1725
27/02/1730
10/01/1734
25/12/1732--01/04/1730
14/05/1737 - 04/06/1737
30/07/1660 - 25/03/1680
01/07/1637 - 27/11/1649
25/02/1654 - 01/03/1654
03/07/1660 - 29/07/1660
Average flow width (km)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Summit
Lateral
Eccentric
9
8
7
Frequency
6
5
4
3
2
1
0
0-0.1
0.11-0.2
0.21-0.3
0.31-0.4
0.41-0.5
0.51-0.6
0.61-0.7
0.71-0.8
Average width groups (km)
Graph 5: Average width of lava flows and vent location frequency graph.
0.81-0.9
Effusive
Strombolian
Vulcanian
Sub-plinian
9
8
7
Frequency
6
5
4
3
2
1
0
0-0.1
0.11-0.2
0.21-0.3
0.31-0.4
0.41-0.5
0.51-0.6
0.61-0.7
0.71-0.8
Average width (km)
Graph 6: Average width of flows and maximum explosivity frequency graph.
0.81-0.9
Effusive
Eff-Str
Sstrombolian
Str-Vulc
Vulcanian
Sub-plinian
10
9
8
7
Frequency
6
5
4
3
2
1
0
0-0.1
0.11-0.2
0.21-0.3
0.31-0.4
0.41-0.5
0.51-0.6
0.61-0.7
Average width (km)
Graph 7: Average width of flows and main eruption style
frequency graph.
0.71-0.8
0.81-0.9
15/12/1631 - 02/01/1632
28/11/1649 - 10/03/1650
25/02/1654 - 01/03/1654
30/07/1660 - 25/03/1680
12/08/1682 - 22/08/1682
13/04/1694 - 29/04/1694
15/08/1696 - 14/09/1697
19/05/1698 - 15/07/1698
16/07/1701 - 18/05/1704
20/07/1706 - 28/07/1707
05/02/1712 - 10/06/1712
09/11/1712 - 11/04/1713
06/01/1714 - 20/01/1714
01/07/1714 - 05/06/1717
22/12/1717 - 26/12/1717
10/07/1719 - 06/05/1720
01/05/1721 - 07/06/1721
09/07/1723 - 03/09/1724
10/01/1725 - 15/08/1728
02/04/1730 - 24/12/1730
01/07/1735 - 30/07/1735
05/06/1737 - 30/10/1744
26/02/1752 - 01/12/1754
29/03/1759 - 31/03/1759
21/05/1759 - 05/11/1759
23/12/1760 - 06/01/1761
28/03/1766 - 15/12/1766
28/10/1767 - 14/02/1770
01/05/1771 - 30/05/1771
02/02/1774 - 03/08/1774
20/12/1775 - 03/04/1776
14/08/1779 - 17/09/1783
01/12/1787 - 31/07/1788
05/09/1790 - 16/11/1790
06/07/1794 - 14/01/1796
29/11/1804 - 11/08/1805
31/05/1806 - 09/06/1806
06/09/1809 - 10/09/1810
01/01/1812 - 28/02/1812
29/10/1813 - 28/02/1814
27/12/1817 - 30/11/1819
15/01/1822 - 28/02/1822
17/11/1822 - 01/07/1824
24/12/1832 - 24/05/1833
27/11/1833 - 16/01/1834
03/09/1834 - 31/12/1834
04/01/1839 - 19/09/1841
05/02/1850 - 16/02/1850
01/05/1855 - 27/05/1855
27/05/1858 - 12/04/1861
01/01/1862 - 09/02/1864
01/12/1867 - 31/05/1868
27/11/1868 - 30/11/1870
01/05/1871 - 23/04/1872
18/12/1875 - 15/12/1881
02/05/1885 - 01/07/1886
20/04/1887 - 30/04/1889
07/06/1891 - 03/06/1894
08/09/1899 - 26/08/1903
03/02/1906 - 03/04/1906
05/07/1913 - 26/11/1926
01/08/1927 - 02/08/1927
13/08/1929 - 02/06/1929
11/07/1930 - 30/07/1930
10/11/1930 - 31/05/1933
12/02/1935 - 31/05/1935
22/08/1935 - 27/03/1936
04/06/1937 - 07/07/1937
10/08/1939 - 25/06/1940
22/10/1941 - 15/12/1942
24/02/1944 - 17/03/1944
Maximum width (km)
3
Graph 8: Maximum width by time
2.5
2
1.5
1
0.5
0
Date of activity
Summit
Lateral
Eccentric
8
7
6
Frequency
5
4
3
2
1
0
0.0-0.25 0.251-0.50 0.501-0.75 0.751-1.00 1.01-1.25 1.251-1.50 1.51-1.75 1.751-2.00 2.01-2.25 2.251-2.50 2.51-2.75 2.751-3.00
Maximum width groups (km)
Graph 9: Maximum width and vent location frequency graph.
Date of activity
27/11/1926
10/08/1928
03/08/1927 -- 28/11/1926
08/06/1929
03/06/1929
11/02/1935
20/11/1934 -- 27/03/1936
31/05/1935
12/02/1935
22/08/1935
08/08/1939 - 09/08/1939
05/01/1944
16/12/1942 - 23/02/1944
06/01/1944
03/07/1895 - 07/09/1899
02/02/1906
01/10/1904 - 22/04/1906
04/04/1906
18/12/1875 - 15/12/1881
01/05/1885
01/02/1884 -- 01/07/1886
02/05/1885
20/04/1887 - 30/04/1889
05/02/1850 - 16/02/1850
14/12/1854 - 30/04/1855
19/12/1855 - 26/05/1858
01/01/1862 - 09/02/1864
31/05/1868
01/12/1867
15/11/1868
12/01/1871
01/12/1870
30/04/1871
13/01/1871 --- 26/11/1868
23/04/1872
01/05/1871
17/12/1875
01/05/1872
23/12/1832
20/08/1831
15/06/1833
25/05/1833
1701/1834 -- 21/08/1834
01/01/1835
19/09/1841
04/01/1839 - 31/12/1838
06/09/1809
31/12/1811
23/09/1810 -- 10/09/1810
28/02/1812
01/01/1812
22/12/1817 - 26/12/1817
21/10/1822 - 16/11/1822
01/12/1787 - 31/07/1788
16/06/1794
14/01/1796
06/07/1794 -- 05/07/1794
02/12/1754 - 15/03/1755
16/03/1755
06/01/1761
23/12/1760 -- 27/03/1759
01/07/1764
15/12/1766
28/03/1766 -- 27/03/1766
27/10/1767
19/10/1767
01/05/1770 - 30/04/1771
03/08/1774
02/02/1774
04/08/1774
03/04/1776
20/12/1775 - 01/12/1774
29/07/1779 - 13/08/1779
- 12/04/1694
03/10/1685
30/04/1694
14/09/1697
15/08/1696 -- 30/07/1696
09/01/1698
15/09/1697
18/05/1698
10/01/1698
15/07/1698
19/05/1698
16/07/1698 - 30/06/1701
19/05/1704 - 23/05/1704
20/07/1706 - 28/07/1707
11/06/1712
30/06/1714
15/06/1714 -- 24/10/1712
21/12/1717
19/06/1717 - 02/09/1718
26/12/1717
28/05/1720
07/06/1721
01/05/1721 30/04/1721
30/09/1724 - 09/01/1725
15/08/1728
10/01/1725 -- 01/04/1730
27/02/1730
25/12/1732 - 10/01/1734
14/05/1737 - 04/06/1737
30/07/1660 - 25/03/1680
01/07/1637 - 27/11/1649
25/02/1654 - 01/03/1654
03/07/1660 - 29/07/1660
Length to width ratio
40
Graph 10: Maximum length to average width ratio by time
35
30
25
20
15
10
5
0
Max. Explosivity: Effusive
Max. Explosivity: strombolian
Max. Explosivity: vulcanian
Max. Explosivity: Sub-plinian
4
Frequency
3
2
1
0
0-5.00
5.01-10.00
10.1-15.00
15.1-20.00
20.1-25.00
25.1-30.00
30.1-35.00
Length to width ratio groups
Graph 11: Maximum length to average width ratio and maximum explosivity
frequency graph.
35.01-40.00
Main style: Effusive
Main style: Eff-Str
Main style: strombolian
Main style: Str-Vulc
Main style: vulcanian
Main style: Sub-plinian
5
4
Frequency
3
2
1
0
0-5.00
5.01-10.00
10.1-15.00
15.1-20.00
20.1-25.00
25.1-30.00
30.1-35.00
Length to width ratio groups
Graph 12: Maximum length to average width ratio and main eruption style
frequency graph.
35.01-40.00
Date of activity
28/11/1926
27/11/1926
10/08/1928
03/08/1927---08/06/1929
03/06/1929
20/11/1934
31/05/1935
12/02/1935 - 11/02/1935
27/03/1936
22/08/1935
08/08/1939 - 09/08/1939
05/01/1944
16/12/1942 - 23/02/1944
06/01/1944
03/07/1895 - 07/09/1899
02/02/1906
01/10/1904 - 22/04/1906
04/04/1906
18/12/1875 - 15/12/1881
01/02/1884
01/07/1886
02/05/1885 -- 01/05/1885
20/04/1887 - 30/04/1889
23/12/1832
20/08/1831
15/06/1833
25/05/1833
1701/1834 -- 21/08/1834
01/01/1835
19/09/1841
04/01/1839 -- 31/12/1838
05/02/1850 - 16/02/1850
14/12/1854 - 30/04/1855
19/12/1855 - 26/05/1858
01/01/1862 - 09/02/1864
31/05/1868
01/12/1867
- 26/11/1868
15/11/1868
12/01/1871
01/12/1870
13/01/1871
23/04/1872
01/05/1871 -- 30/04/1871
17/12/1875
01/05/1872
06/09/1809
31/12/1811
23/09/1810 -- 10/09/1810
28/02/1812
01/01/1812
22/12/1817 - 26/12/1817
21/10/1822 - 16/11/1822
01/12/1787 - 31/07/1788
16/06/1794
14/01/1796
06/07/1794 -- 05/07/1794
02/12/1754 - 15/03/1755
16/03/1755
06/01/1761
23/12/1760 -- 27/03/1759
27/03/1766
01/07/1764 -- 27/10/1767
15/12/1766
28/03/1766
19/10/1767
01/05/1770 - 30/04/1771
03/08/1774
02/02/1774
04/08/1774
03/04/1776
20/12/1775 - 01/12/1774
29/07/1779 - 13/08/1779
- 12/04/1694
03/10/1685
30/04/1694
14/09/1697
15/08/1696 -- 30/07/1696
09/01/1698
15/09/1697
18/05/1698
10/01/1698
15/07/1698
19/05/1698
16/07/1698 - 30/06/1701
19/05/1704 - 23/05/1704
20/07/1706 - 28/07/1707
11/06/1712
30/06/1714
15/06/1714 -- 24/10/1712
21/12/1717
19/06/1717 - 02/09/1718
26/12/1717
30/04/1721
28/05/1720 - 07/06/1721
01/05/1721
30/09/1724 - 09/01/1725
15/08/1728
10/01/1725
27/02/1730
10/01/1734
25/12/1732--01/04/1730
14/05/1737 - 04/06/1737
30/07/1660 - 25/03/1680
01/07/1637 - 27/11/1649
25/02/1654 - 01/03/1654
03/07/1660 - 29/07/1660
Area (km2)
9
Graph 13: Area of main lava flows over time.
8
7
6
5
4
3
2
1
0
Effusive
Strombolian
Vulcanian
Sub-Plinian
9
8
7
Frequency
6
5
4
3
2
1
0
0-1
1.01-2.00
2.01-3.00
3.01-4.00
4.01-5.00
Area groupings
5.01-6.00
(km2)
Graph 14: Area and maximum explosivity frequency graph.
6.01-7.00
7.01-8.00
Effusive
Eff-Str
Strombolian
Str-Vulc
Vulcanian
Sub-Plinian
10
9
8
7
Frequency
6
5
4
3
2
1
0
0-1
1.01-2.00
2.01-3.00
3.01-4.00
4.01-5.00
Area groupings
5.01-6.00
(km2)
Graph 15: Area and main eruption style frequency graph.
6.01-7.00
7.01-8.00
15/12/1631 - 02/01/1632
28/11/1649 - 10/03/1650
25/02/1654 - 01/03/1654
30/07/1660 - 25/03/1680
12/08/1682 - 22/08/1682
13/04/1694 - 29/04/1694
15/08/1696 - 14/09/1697
19/05/1698 - 15/07/1698
16/07/1701 - 18/05/1704
20/07/1706 - 28/07/1707
05/02/1712 - 10/06/1712
09/11/1712 - 11/04/1713
06/01/1714 - 20/01/1714
01/07/1714 - 05/06/1717
22/12/1717 - 26/12/1717
10/07/1719 - 06/05/1720
01/05/1721 - 07/06/1721
09/07/1723 - 03/09/1724
10/01/1725 - 15/08/1728
02/04/1730 - 24/12/1730
01/07/1735 - 30/07/1735
05/06/1737 - 30/10/1744
26/02/1752 - 01/12/1754
29/03/1759 - 31/03/1759
21/05/1759 - 05/11/1759
23/12/1760 - 06/01/1761
28/03/1766 - 15/12/1766
28/10/1767 - 14/02/1770
01/05/1771 - 30/05/1771
02/02/1774 - 03/08/1774
20/12/1775 - 03/04/1776
14/08/1779 - 17/09/1783
01/12/1787 - 31/07/1788
05/09/1790 - 16/11/1790
06/07/1794 - 14/01/1796
29/11/1804 - 11/08/1805
31/05/1806 - 09/06/1806
06/09/1809 - 10/09/1810
01/01/1812 - 28/02/1812
29/10/1813 - 28/02/1814
27/12/1817 - 30/11/1819
15/01/1822 - 28/02/1822
17/11/1822 - 01/07/1824
24/12/1832 - 24/05/1833
27/11/1833 - 16/01/1834
03/09/1834 - 31/12/1834
04/01/1839 - 19/09/1841
05/02/1850 - 16/02/1850
01/05/1855 - 27/05/1855
27/05/1858 - 12/04/1861
01/01/1862 - 09/02/1864
01/12/1867 - 31/05/1868
27/11/1868 - 30/11/1870
01/05/1871 - 23/04/1872
18/12/1875 - 15/12/1881
02/05/1885 - 01/07/1886
20/04/1887 - 30/04/1889
07/06/1891 - 03/06/1894
08/09/1899 - 26/08/1903
03/02/1906 - 03/04/1906
05/07/1913 - 26/11/1926
01/08/1927 - 02/08/1927
13/08/1929 - 02/06/1929
11/07/1930 - 30/07/1930
10/11/1930 - 31/05/1933
12/02/1935 - 31/05/1935
22/08/1935 - 27/03/1936
04/06/1937 - 07/07/1937
10/08/1939 - 25/06/1940
22/10/1941 - 15/12/1942
24/02/1944 - 17/03/1944
Thickness of flow (m)
180
160
140
120
100
80
60
40
20
0
Date of activity
Graph 16: Thickness of flows over time.
Effusive
Strombolian
Vulcanian
Sub-Plinian
Maximum explosivity and thickness
5
4
Frequency
3
2
1
0
0-2
2.1-4
4.1-6
6.1-8
8.1-10
10.1-20
20.1-30
30.1-50
50.1-100 100.1-150 150.1-200
Thickness groups (m)
Graph 17: Thickness and maximum explosivity frequency graph.
Effusive
Eff-Str
Strombolian
Str-Vulc
Vulcanian
Sub-Plinian
4
Frequency
3
2
1
0
0-2
2.1-4
4.1-6
6.1-8
8.1-10
10.1-20
20.1-30
30.1-50
50.1-100
100.1-150 150.1-200
Thickness groups (m)
Graph 18: Thickness of lava flows and principal eruption style frequency graph.
Effusive
Strombolian
Vulcanian
Sub-Plinian
9
8
7
Frequency
6
5
4
3
2
1
0
Low
Medium
High
Volume groups
Graph 19: Volume with maximum explosivity frequency graph
Effusive
Eff-Str
Strombolian
Str-Vulc
Vulcanian
Sub-Plinian
4.5
4
3.5
Frequency
3
2.5
2
1.5
1
0.5
0
Low
Medium
High
Volume categories
Graph 20: Volume and principal eruption style frequency graph
02/12/1754 - 15/03/1755
23/12/1760 - 06/01/1761
19/10/1767 - 27/10/1767
14/05/1737 - 04/06/1737
15/12/1631 - 02/01/1632
Date of activity
18/03/1944 - 04/04/1944
07/06/1891 - 03/06/1894
03/07/1895 - 07/09/1899
04/04/1906 - 22/04/1906
24/04/1872 - 30/04/1872
01/05/1855 - 27/05/1855
27/05/1858 - 12/04/1861
Moderate effusion rate
22/08/1834 - 02/09/1834
01/01/1839 - 03/01/1839
16/06/1794 - 05/07/1794
Effusion rate
Low effusion rate
High effusion rate
Graph 21: Effusion rate over time.
High
Medium
Low
Summit
Lateral
Eccentric
6
5
Frequency
4
3
2
1
0
Low
Medium
Effusion rate categories
Graph 22: Effusion rate and vent location frequency graph.
High
Effusive
Strombolian
Vulcanian
Sub-Plinian
7
6
Frequency
5
4
3
2
1
0
Low
Medium
High
Effusion rate categories
Graph 23: Effusion rate and maximum explosivity frequency graph.
Simple
Compound
8
Maximum length of flow (km)
7
6
5
4
3
2
1
0
0
1
2
3
4
5
Area of lava flow
6
7
8
9
(km2)
Graph 24: Length by area of lava flow
Simple
Compound
Linear (Compound)
0.9
Average width of flow (km)
0.8
0.7
R² = 0.7321
0.6
0.5
0.4
0.3
0.2
0.1
0
0
1
2
3
4
5
6
Maximum length of flow (km)
7
Graph 25: Maximum length of flows and average width.
8
9
Simple
Compound
40
Length to width ratio
35
30
25
20
15
10
5
0
0
1
2
3
4
5
Area of flow
6
7
8
9
7
8
9
(km2)
Graph 26: Length to width ratio by area of flow.
Simple
Compound
180
160
Thickness of flow (m)
140
120
100
80
60
40
20
0
0
1
2
3
4
5
6
Maximum length of flow (km)
Graph 27: Thickness by maximum length.
Simple
Compound
Duration of active lava flows (days)
1000
100
10
1
0
1
2
3
4
5
6
7
8
9
Area (km2)
Mean Output rate
Graph 28: Duration of active lavas outside of the crater and the resulting area of the flow
produced.
High
Medium
Low
1
10
100
1000
Duration of active lavas (days)
Graph 29: MOR and duration. Circles represent compound flow-fields.
10000
Mean output rate
High
Medium
Low
0
10
20
30
40
50
60
70
80
90
100
160
180
Volume of flow
Medium
Low
Volume
High
Graph 30: MOR and volume. Circles represent compound flow-fields.
0
20
40
60
80
100
Thickness of flow (m)
120
140
Graph 31: Volume and thickness. Circles represent compound flow-fields.
Mean output rate
High
Medium
Low
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Average width of flow (km)
Mean Output rate
Graph 32: MOR and the average width of the flows. Circles represent compound flow-fields.
High
Medium
Low
0
5
10
15
20
25
Length to width ratio
Graph 33: MOR and length to width ratio.
30
35
40
Mean Output rate
High
Medium
Low
1
10
100
1000
Aspect ratio of flow thickness (m) over flow area (m2) in
10000
x10-7
Graph 34: MOR and aspect ratio. Circles represent compound flow fields.