Errata
Errors found so far in the 2003 text of "An Introduction to Seismology, Earthquakes, and Earth Structure"
 Acknowledgements, line 12: change "Fredrick" to "Frederick"
 Acknowledgements, new sentence at the end of the 3rd paragraph (after "... invaluable help."): "Indirect support was provided by the National Science Foundation through PECASE award #NSFEAR9629018."
 Page 16, Table 1.24, last line: change “m/s” to “m sup 2 / s sup 2” (Thanks to Emile Okal for finding this.)
 Page 26, paragraph 1, line 11: change "have been yet" to "have not yet". (Thanks to Cliff Thurber for finding this.)
 Page 48, 7 lines from the end: change "type" to "types". (Thanks to Cliff Thurber for finding this.)
 Page 48, last line: change "the earth" to "mantle rock". (Thanks to Cliff Thurber for finding this.)
 Page 66, Figure 2.54: The refracted wave k vector should be shorter than the one in the top of the figure. (Thanks to Bob Smalley for finding this.)
 Page 74, Figure 2.518, middle: change “x” to “x sub 0”
 Page 78, right side, line 5: change “(Eqn 2.5.8)” to “(Eqn 2.5.18)” (Thanks to Sum Mak for catching this.)
 Page 82, Figure 2.611(bottom two panels): Change the existing longdashed curves at the top of the figures to match the pattern of the alternating shortdash/longdash line that is shown in the legend for the Transmitted S wave energy flux ratio.
 Page 83, Figure 2.612(lower left panel): Change the existing dashed curve to match the pattern of the alternating shortdash/longdash line for the Transmitted S wave energy flux ratio. (Thanks to Fabio Romanelli for finding this.)
 Page 88, last line on left side: change “(22/sqrt3)” to “sqrt(22/sqrt3)” (Thanks to Thomas Blum and Emile Okal for catching this.)
 Page 91, first line: change “cos sup 2” to “2 cos sup 2” (Thanks to Douglas Toomey for catching this.)
 Page 91, Equation 2.7.24: In two places, change "xi" to "zeta".
 Page 91: In the third line after Equation (21), change "critically reflected" to "postcritically reflected" (Thanks to Yue Tian for finding this.).
 Page 91: In the line above Equation (24), change "Eqn 23" to "Eqn 22" (Thanks to Yue Tian for finding this.). (Thanks to Taliang (Leon) Teng for finding this.)
 Page 95, Equation 2.8.16: Flip dk/d(omega) to be d(omega)/dk. (Thanks to Taliang (Leon) Teng for finding this.)
 Pages 9596, Equations 12, 13, 14, 15, 16, 21, 22: these equations all have slanted lines (sub omega or sub k) that should be vertical.
 Page 98: In the right side of Equation (27), change "v sub i" to "v sub j" (Thanks to Yue Tian for finding this.).
 Page 98: In the line below Equation (28), change "L sub ji" to "L sub ij".
 Page 105: Figure 2.95 has been corrected. The new version can be found HERE. (Thanks to Suzan van der Lee for finding this.)
 Page 110, Footnote 8: Change "homogeneous" to "heterogeneous". (Thanks to Taliang (Leon) Teng for finding this.)
 Page 111, Footnote 9: change "overthones" to "overtones".
 Page 117: In Problem #27b, change "depth of the slab" to "depth beneath the station to the top of the slab" (Thanks to Paul Richards for finding this.).
 Page 121, 8 lines above Eqn 4: change “an angle at or beyond the critical angle” to “an angle at the critical angle“.
 Page 125: Two lines below Equation (17), change "h sub u s the perpendicular distance to the interface below the receiver." to "h sub u = h sub d + x sin theta is the perpendicular distance to the interface below the receiver (Fig. 3.210)." (Thanks to Yue Tian for noticing this.).
 Page 158, Figure 3.43: change "Pay" to "Ray".
 Page 162: In the second paragraph, change "Table 5.11" to "Table 3.51" (Thanks to Fabio Romanelli for finding this.).
 Page 166: In the secondtolast line of the second paragraph, change "3 pi / 4" to "3 pi / 2" (Thanks to Yue Tian for finding this.).
 Page 169, Caption to Figure 3.59: change "1977" to "1997".
 Page 170, paragraph 4, line 8: change "On" to "For". (Thanks to Cliff Thurber for finding this.)
 Page 177: In the topright paragraph, line 10, change "crystal lattice" to "crystal lattices of an agglomeration of mineral grains" (Thanks to Paul Richards for finding this.).
 Page 178, Figure 3.62(bottom): Change S1 to S2 in both places. (Thanks to Thorne Lay for finding this.)
 Page 178, Caption to Figure 3.62: In the last line, change S1 to S2. (Thanks to Thorne Lay for finding this.)
 Page 179, Third line from the top: Change S1 to S2. (Thanks to Thorne Lay for finding this.)
 Page 179, Equation 8: change "N/(A2L)" to "F/(A2L)".
 Page 181, Equation 12: On the right side of the equation for s sub 2, the term should have a negative sign added
 Page 185: Figure 3.613 has been corrected. The new version can be found HERE. (Thanks to Michael Ritzwoller for finding this.)
 Page 190: In Equation (3), change "B e sup i omega sub o t" to "B e sup i omega sub o t" (Thanks to Yue Tian for finding this.) (change "s(t delta t)" to "s(t delta t))".
 Page 191, Equation 22: change "A(t) sup 2" to "A sup 2 (t)".
 Page 193, after Equation 42: change "Eqn 35 yields" to "Eqn 41 yields".
 Page 194, Caption to Figure 3.713: change "phase shift" to "the phase shift".
 Page 195, before Equation 48: change "writing Eqn 34" to "writing Eqn 40".
 Page 195, Column 2, 6 lines after Eqn. (51): change "Eqn (46)" to "Eqn (51)".
 Page 199: In the caption to Fig. 3.719, change "increases with depth" to "decreases with depth" (Thanks to Yue Tian for finding this.)
 Page 200, Footnote 1, line 2: change "effect" to "effect inside the sphere". (Thanks to Cliff Thurber for finding this.)
 Page 201, Eqn 17: change “g alpha tau” to “rho alpha tau” (Thanks to PoFei Chen for finding this.)
 Page 204, Paragraph 3, line 15: change "4300 C" to "4000 C" and change "4000 K" to "3700 K".
 Page 212, HW#4a: Change “distance y” to “distance y (along the surface)”
 Page 213, Question 3.17: In both the main text of the question and in part "(a)" the phrase "apparent velocity" should be changed to "ray parameter". (Thanks to Bob Smalley for finding this.)
 Page 214, Question 3.22: change kappa to "K".
 Page 215, paragraph 2, line 11: change "first earthquakes" to "first U.S. earthquakes". (Thanks to Cliff Thurber for finding this.)
 Page 216, Figure 4.14: The figure needs to be flipped laterally.(Thanks to Emile Okal for finding this.)
 Page 218: In the second paragraph in the right column (2nd to last line), change "Section 2.3.4" to "Section 2.3.5" (Thanks to Yue Tian for finding this.)
 Page 222: In the third line, change "M(t)" to "M dot (t)" [this is an "M" with a dot on top] (Thanks to Yue Tian for finding this.)
 Page 227, Figure 4.217: Change the closed circles in the white areas to open circles.
 Page 252, caption to Figure 4.52, line 3: change "antenna length l" to "antenna length d".
 Page 265, caption to Figure 4.62, change "society"
 Page 274: Two lines after Equation (1), change "greater than M" to "greater than or equal to M." (Thanks to Cliff Thurber for finding this.) to "Society."
 Page 278, line below Eqn 9: change “e sup x” to “e sup x” (Thanks to Jerome Stein for finding this.)
 Page 291, Equation 6: In both lines, the space after the
 Page 325: In Figure 5.430, change the spelling of "Aleutions" to "Aleutians." second comma is too large.
 Page 348, Caption to Figure 5.619: Change the citation to (World Stress Map project, Muller et al., 2000).
 Page 364, Figure 5.727: In both panels, change "Maxico" to "Mexico".
 Page 392: In the right hand side of Equation (1), change "]." "]dx."
 Page 392: In the right hand side of Equation (2), change "]." "]dz."
 Page 393: In Equations 6 and 7: change “p sub i (mu prime)” to “p sub i (x sub i )”, change “p(mu prime)” to “p(x sub i )”, change “P sub i (mu prime)” to “P sub i (x sub i )”, change “d/d mu prime” to “d/dx sub i”
 Page 413, Box 6C2: In line 8, change "DATA(I+1)" to "DATAI(I+1)".
 Page 426, Eqn 11: change “LAMBDA” to “LAMBDA sup 2” (Thanks to Malcolm Sambridge for finding this.)
 Page 426, line after Eqn 12: change “LAMBDA” to “LAMBDA sup 2” (Thanks to Malcolm Sambridge for finding this.)
 Page 426, Eqn 13: Each of the lambdas should be squared (Thanks to Malcolm Sambridge for finding this.)
 Page 426: add text after Eqn 13: “where the eigenvalues are written as squared because lambda sub i are the eigenvalues of G.” (Thanks to Malcolm Sambridge for finding this.)
 Page 427: change “LAMBDA” to “LAMBDA sup 2” and change “LAMBDA sup 1” to “LAMBDA sup 2” (Thanks to Malcolm Sambridge for finding this.)
 Page 427, EQN 16: change “LAMBA sup 1” to “LAMBDA sup 2” and square each of the diagonal terms (Thanks to Malcolm Sambridge for finding this.)
 Page 427, Eqn 19: change “LAMBDA” to “LAMBDA sup 2” (Thanks to Malcolm Sambridge for finding this.)
 Page 427: In the second line above Equation (20), change "decompose the matrix G" to "decompose the matrix GTG" [GTG is G superscript T G, as on left side of equation 11]
 Page 427: In Equation (20), change the left side from "G" to "GTG" [GTG is G superscript T G, as on left side of equation 11]
 Page 428, Paragraph 1, line 12: change "net slowness" to
 Page 445: Figure A.31 has been corrected. The new version can be found HERE. (Thanks to Garrett Euler for finding this.)
 Page 445: Figure A.32 has been corrected. The new version can be found HERE. (Thanks to Garrett Euler for finding this.) "maximum slowness".
 Page 461, Equation (20): In the righthand term, change the subscript of phi from ",ii" to ",,i".
 Page 464, Equation (5): the bottom term for x sub E should be "R cos theta sub E" and not "R cos phi sub E". (Thanks to Jennifer Ward for finding this.)
 Page 481. Add the reference: Muller, B., J. Reinecker, B. Sperner, and K. Fuchs (2000) The 2000 release of the World Stress Map.
 Page 486, HW Solution for 2.25b: In the third equation, both rsubbeta's should be squared, (as rsubbetasup2).
 Page 486, HW Solution for 2.37a: change 0.095 to 0.059.
 Page 486, HW Solution for 2.37b: change 0.038 to 0.037.
 Page 486, HW Solution for 3.3a: change 7.8 to 8.2.
 Page 486, HW Solution for 3.3c: change 6.1 km to 5.4 km.
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