Circles of investigation used for prediction of magnitude 7.5+ earthquakes
Number Latitude   Lontitude   Flinn-Enghdal Region F-E #

1

15.00

S

175.00

W TONGA ISLANDS

173

2

17.50

S

174.00

W TONGA ISLANDS

173

3

20.00

S

175.00

W TONGA ISLANDS

173

4

22.50

S

176.00

W SOUTH OF FIJI ISLANDS

171

5

25.00

S

177.00

W SOUTH OF FIJI ISLANDS

171

6

27.50

S

177.50

W KERMADEC ISLANDS REGION

177

7

30.00

S

178.00

W KERMADEC ISLANDS, NEW ZEALAND

178

8

32.50

S

179.00

W SOUTH OF KERMADEC ISLANDS

179

9

35.00

S

180.00

E EAST OF NORTH ISLAND, N.Z.

688

10

37.00

S

178.00

E OFF E. COAST OF N. ISLAND, N.Z.

160

11

2.00

S

136.00

E IRIAN JAYA REGION, INDONESIA

196

12

2.25

S

138.50

E IRIAN JAYA, INDONESIA

201

13

2.50

S

141.00

E NEAR NORTH COAST OF IRIAN JAYA

197

14

3.75

S

143.50

E NEAR N COAST OF NEW GUINEA, PNG.

200

15

5.00

S

146.00

E EASTERN NEW GUINEA REG., P.N.G.

207

16

5.00

S

149.00

E BISMARCK SEA

203

17

5.00

S

152.00

E NEW BRITAIN REGION, P.N.G.

192

18

6.25

S

154.00

E SOLOMON ISLANDS

193

19

7.50

S

156.00

E SOLOMON ISLANDS

193

20

8.75

S

158.00

E SOLOMON ISLANDS

193

21

10.00

S

160.00

E SOLOMON ISLANDS

193

22

10.50

S

162.50

E SOLOMON ISLANDS

193

23

11.00

S

165.00

E SANTA CRUZ ISLANDS

184

24

13.00

S

166.25

E VANUATU ISLANDS

186

25

15.00

S

167.50

E VANUATU ISLANDS

186

26

17.50

S

168.25

E VANUATU ISLANDS

186

27

20.00

S

169.00

E VANUATU ISLANDS

186

28

21.25

S

170.75

E LOYALTY ISLANDS REGION

189

29

9.50

N

93.75

E NICOBAR ISLANDS, INDIA

704

30

7.00

N

94.50

E NICOBAR ISLANDS, INDIA

704

31

5.00

N

95.75

E NORTHERN SUMATERA, INDONESIA

706

32

3.00

N

97.00

E NORTHERN SUMATERA, INDONESIA

706

33

2.00

N

98.50

E NORTHERN SUMATERA, INDONESIA

706

34

1.00

S

100.00

E SOUTHERN SUMATERA, INDONESIA

274

35

3.00

S

101.50

E SOUTHERN SUMATERA, INDONESIA

274

36

5.00

S

103.00

E SOUTHERN SUMATERA, INDONESIA

274

37

6.50

S

105.00

E SUNDA STRAIT

276

38

8.00

S

107.00

E JAWA, INDONESIA

277

39

8.50

S

109.50

E JAWA, INDONESIA

277

40

9.00

S

112.00

E SOUTH OF JAWA, INDONESIA

282

41

9.25

S

114.50

E SOUTH OF BALI, INDONESIA

284

42

9.50

S

117.00

E SUMBAWA REGION, INDONESIA

285

43

9.50

S

119.50

E SUMBA REGION, INDONESIA

287

44

9.50

S

122.00

E SAVU SEA

288

45

8.25

S

124.50

E TIMOR REGION, INDONESIA

289

46

7.00

S

127.00

E BANDA SEA

280

47

6.00

S

129.00

E BANDA SEA

280

48

5.00

S

131.00

E BANDA SEA

280

49

3.50

S

129.25

E SERAM, INDONESIA

272

50

2.00

S

127.50

E CERAM SEA

270

51

1.00

S

125.25

E SOUTHERN MOLUCCA SEA

269

52

0.00

S

123.00

E MINAHASSA PENINSULA, SULAWESI

265

53

0.00

S

120.50

E MINAHASSA PENINSULA, SULAWESI

265

54

1.50

N

125.00

E MINAHASSA PENINSULA, SULAWESI

265

55

3.00

N

127.00

E TALAUD ISLANDS, INDONESIA

263

56

5.25

N

126.50

E MINDANAO, PHILIPPINE ISLANDS

259

57

7.50

N

126.00

E MINDANAO, PHILIPPINE ISLANDS

259

58

9.75

N

125.50

E MINDANAO, PHILIPPINE ISLANDS

259

59

12.00

N

125.00

E LEYTE, PHILIPPINE ISLANDS

256

60

13.50

N

123.00

E LUZON, PHILIPPINE ISLANDS

249

61

15.00

N

121.00

E LUZON, PHILIPPINE ISLANDS

249

62

35.00

N

136.00

E NEAR S. COAST OF WESTERN HONSHU

233

63

34.00

N

134.00

E SHIKOKU, JAPAN

236

64

33.00

N

132.00

E KYUSHU, JAPAN

235

65

31.00

N

132.00

E SOUTHEAST OF SHIKOKU, JAPAN

237

66

29.00

N

131.00

E SOUTHEAST OF RYUKYU ISLANDS

239

67

27.00

N

129.00

E RYUKYU ISLANDS

238

68

26.00

N

127.00

E RYUKYU ISLANDS

238

69

25.00

N

124.50

E NORTHEAST OF TAIWAN

245

70

25.00

N

122.00

E TAIWAN

244

71

22.50

N

121.50

E TAIWAN REGION

243

72

20.00

N

121.50

E PHILIPPINE ISLANDS REGION

248

73

17.50

N

121.00

E LUZON, PHILIPPINE ISLANDS

249

74

45.50

N

150.50

E KURIL ISLANDS

221

75

44.00

N

148.00

E EAST OF KURIL ISLANDS

222

76

43.50

N

145.50

E HOKKAIDO, JAPAN REGION

224

77

43.00

N

143.00

E HOKKAIDO, JAPAN REGION

224

78

41.00

N

141.00

E NEAR EAST COAST OF HONSHU, JAPAN

228

79

39.00

N

142.00

E NEAR EAST COAST OF HONSHU, JAPAN

228

80

36.50

N

141.00

E NEAR EAST COAST OF HONSHU, JAPAN

228

81

35.00

N

139.00

E NEAR S. COAST OF HONSHU, JAPAN

230

82

33.00

N

141.00

E SOUTH OF HONSHU, JAPAN

211

83

31.00

N

142.00

E SOUTH OF HONSHU, JAPAN

211

84

29.00

N

142.50

E SOUTH OF HONSHU, JAPAN

211

85

27.00

N

143.00

E BONIN ISLANDS REGION

212

86

25.00

N

143.00

E VOLCANO ISLANDS REGION

213

87

23.00

N

143.00

E VOLCANO ISLANDS REGION

213

88

21.00

N

144.50

E MARIANA ISLANDS REGION

215

89

19.00

N

146.00

E MARIANA ISLANDS

216

90

16.50

N

147.00

E MARIANA ISLANDS REGION

215

91

14.00

N

146.00

E SOUTH OF MARIANA ISLANDS

210

92

12.00

N

144.00

E SOUTH OF MARIANA ISLANDS

210

93

12.00

N

141.00

E SOUTH OF MARIANA ISLANDS

210

94

46.00

N

152.00

E KURIL ISLANDS

221

95

48.50

N

155.50

E KURIL ISLANDS

221

96

51.00

N

158.00

E NEAR EAST COAST OF KAMCHATKA

218

97

53.50

N

160.00

E NEAR EAST COAST OF KAMCHATKA

218

98

56.50

N

161.50

E NEAR EAST COAST OF KAMCHATKA

218

99

55.00

N

166.50

E KOMANDORSKY ISLANDS REGION

4

100

51.50

N

176.00

E RAT ISLANDS, ALEUTIAN ISLANDS

6

101

51.00

N

178.50

W ANDREANOF ISLANDS, ALEUTIAN IS.

7

102

51.50

N

173.00

W ANDREANOF ISLANDS, ALEUTIAN IS.

7

103

52.50

N

167.50

W FOX ISLANDS, ALEUTIAN ISLANDS

9

104

54.00

N

162.50

W ALASKA PENINSULA

12

105

55.50

N

157.50

W ALASKA PENINSULA

12

106

56.50

N

152.00

W KODIAK ISLAND REGION

13

107

60.00

N

153.00

W SOUTHERN ALASKA

2

108

63.00

N

151.00

W CENTRAL ALASKA

1

109

62.00

N

145.00

W CENTRAL ALASKA

1

110

44.50

N

130.00

W OFF COAST OF OREGON

30

111

43.00

N

126.00

W OFF COAST OF OREGON

30

112

40.50

N

128.00

W OFF COAST OF NORTHERN CALIFORNIA

34

113

40.50

N

123.00

W NORTHERN CALIFORNIA

36

114

38.00

N

119.00

W CALIFORNIA-NEVADA BORDER REGION

40

115

37.50

N

122.00

W CENTRAL CALIFORNIA

39

116

35.00

N

118.50

W CENTRAL CALIFORNIA

39

117

37.00

N

118.00

W CALIFORNIA-NEVADA BORDER REGION

40

118

16.00

N

88.00

W CARIBBEAN SEA

94

119

16.00

N

97.00

W NEAR COAST OF OAXACA, MEXICO

66

120

15.00

N

94.00

W OFF COAST OF CHIAPAS, MEXICO

68

121

14.00

N

91.00

W NEAR COAST OF GUATEMALA

71

122

12.00

N

88.00

W NEAR COAST OF NICARAGUA

74

123

10.00

N

85.00

W COSTA RICA

78

124

8.00

N

82.50

W SOUTH OF PANAMA

83

125

5.00

N

82.50

W SOUTH OF PANAMA

83

126

6.00

N

76.00

W NORTHERN COLOMBIA

99

127

8.00

N

73.00

W NORTHERN COLOMBIA

99

128

0.00

S

80.00

W NEAR COAST OF ECUADOR

105

129

5.00

S

77.00

W NORTHERN PERU

111

130

11.00

S

74.00

W CENTRAL PERU

116

131

12.00

S

77.50

W NEAR COAST OF PERU

115

132

15.00

S

75.00

W CENTRAL PERU

116

133

17.50

S

71.00

W NEAR COAST OF PERU

115

134

20.50

S

69.00

W NORTHERN CHILE

123

135

22.00

S

67.00

W CHILE-BOLIVIA BORDER REGION

124

136

23.50

S

70.00

W NEAR COAST OF NORTHERN CHILE

122

137

25.00

S

68.00

W CHILE-ARGENTINA BORDER REGION

127

138

27.00

S

71.00

W NEAR COAST OF NORTHERN CHILE

122

139

28.00

S

69.00

W LA RIOJA PROVINCE, ARGENTINA

138

140

30.00

S

71.50

W NEAR COAST OF CENTRAL CHILE

135

141

31.00

S

70.00

W CHILE-ARGENTINA BORDER REGION

127

142

33.00

S

72.50

W OFF COAST OF CENTRAL CHILE

134

143

34.00

S

71.00

W NEAR COAST OF CENTRAL CHILE

135

144

36.00

S

73.00

W OFF COAST OF CENTRAL CHILE

134

145

56.00

S

27.00

W SOUTH SANDWICH ISLANDS REGION

153

146

57.00

S

25.00

W SOUTH SANDWICH ISLANDS REGION

153

147

58.50

S

25.50

W SOUTH SANDWICH ISLANDS REGION

153

148

43.43

N

17.05

E NORTHWESTERN BALKAN REGION

383

149

42.08

N

19.22

E ALBANIA

391

150

41.63

N

14.10

E SOUTHERN ITALY

390

151

40.73

N

25.67

E AEGEAN SEA

365

152

40.73

N

29.21

E TURKEY

366

153

40.28

N

16.23

E SOUTHERN ITALY

390

154

40.28

N

22.72

E GREECE

364

155

39.83

N

20.36

E GREECE-ALBANIA BORDER REGION

392

156

38.93

N

26.97

E AEGEAN SEA

365

157

38.48

N

16.25

E SOUTHERN ITALY

390

158

37.58

N

21.38

E SOUTHERN GREECE

368

159

36.68

N

28.28

E DODECANESE ISLANDS

369

160

35.33

N

23.38

E CRETE

370

161

35.33

N

31.08

E CYPRUS REGION

372

162

34.88

N

26.68

E CRETE

370

163

29.93

N

57.46

E NORTHERN IRAN

348

164

28.13

N

51.77

E SOUTHERN IRAN

353

165

27.68

N

56.87

E SOUTHERN IRAN

353

166

26.78

N

53.75

E SOUTHERN IRAN

353

167

40.28

N

70.51

E TAJIKISTAN

715

168

40.28

N

78.18

E SOUTHERN XINJIANG, CHINA

321

169

39.83

N

73.46

E TAJIKISTAN-XINJIANG BORDER REG.

719

170

39.83

N

75.82

E SOUTHERN XINJIANG, CHINA

321

171

38.93

N

71.63

E AFGHANISTAN-TAJIKISTAN BORD REG.

717

172

38.48

N

73.82

E TAJIKISTAN-XINJIANG BORDER REG.

719

173

38.03

N

69.83

E AFGHANISTAN-TAJIKISTAN BORD REG.

717

174

36.68

N

71.40

E AFGHANISTAN-TAJIKISTAN BORD REG.

717

175

36.23

N

68.60

E HINDU KUSH REGION, AFGHANISTAN

718

176

35.78

N

73.43

E PAKISTAN

710

177

34.43

N

70.68

E AFGHANISTAN

709

178

26.78

N

97.25

E MYANMAR-INDIA BORDER REGION

294

179

24.98

N

95.25

E MYANMAR

296

180

22.28

N

94.33

E MYANMAR

296