

quakes {base}                                R Documentation

_L_o_c_a_t_i_o_n_s _o_f _E_a_r_t_h_q_u_a_k_e_s _o_f_f _F_i_j_i

_D_e_s_c_r_i_p_t_i_o_n_:

     The data set give the locations of 1000 seismic events
     of MB > 4.0.  The events occurred in a cube near Fiji
     since 1964.

_U_s_a_g_e_:

     data(quakes)

_F_o_r_m_a_t_:

     A data frame with 1000 observations on 5 variables.

      [,1]     lat           numeric        Latitude of event
      [,2]     long          numeric        Longitude
      [,3]     depth         numeric        Depth (km)
      [,4]     mag           numeric        Richter Magnitude
      [,5]     stations      numeric        Number of stations reporting

_D_e_t_a_i_l_s_:

     There are two clear planes of seismic activity.  One is
     a major plate junction; the other is a trench off New
     Zealand.  These data constitute a subsample from a
     larger dataset of containing 5000 observations.

_S_o_u_r_c_e_:

     This is one of the Harvard PRIM-H project data sets.
     They in turn obtained it from Dr. John Woodhouse, Dept.
     of Geophysics, Harvard University.

_E_x_a_m_p_l_e_s_:

     data(quakes)
     pairs(quakes, main = "Fiji Earthquakes, N = 1000", cex.main=1.2, pch=".")

