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# Seismologists studying the earthquake that struck northern

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Seismologists studying the earthquake that struck northern [#permalink]

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28 Apr 2010, 09:04
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Seismologists studying the earthquake that struck northern California in October 1989 are still investigating some of its mysteries: the unexpected power of the seismic waves, the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor.
(A) the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor
(B) the upward thrust that threw one man straight into the air, and strange electromagnetic signals were detected hours before the temblor
(C) the upward thrust threw one man straight into the air, and hours before the temblor strange electromagnetic signals were detected
(D) one man was thrown straight into the air by the upward thrust, and hours before the temblor strange electromagnetic signals were detected
(E) one man who was thrown straight into the air by the upward thrust, and strange electromagnetic signals that were detected hours before the temblor
[Reveal] Spoiler: OA

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Re: Seismologists studying the earthquake that struck northern [#permalink]

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28 Apr 2010, 09:09
Quote:
Seismologists studying the earthquake that struck northern California in October 1989 are still investigating some of its mysteries: the unexpected power of the seismic waves, the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor.
(A) the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor
(B) the upward thrust that threw one man straight into the air, and strange electromagnetic signals were detected hours before the temblor
(C) the upward thrust threw one man straight into the air, and hours before the temblor strange electromagnetic signals were detected
(D) one man was thrown straight into the air by the upward thrust, and hours before the temblor strange electromagnetic signals were detected
(E) one man who was thrown straight into the air by the upward thrust, and strange electromagnetic signals that were detected hours before the temblor

air, and the strange electromagnetic signals detected hours before the temblor.

In option A The strange electromagnetic signala detected hours before the temblor
is not a independent clause.

so does it not lack parallelism ?

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Re: Seismologists studying the earthquake that struck northern [#permalink]

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28 Apr 2010, 09:10
ISB2011 wrote:
Seismologists studying the earthquake that struck northern California in October 1989 are still investigating some of its mysteries: the unexpected power of the seismic waves, the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor.
(A) the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor
(B) the upward thrust that threw one man straight into the air, and strange electromagnetic signals were detected hours before the temblor
(C) the upward thrust threw one man straight into the air, and hours before the temblor strange electromagnetic signals were detected
(D) one man was thrown straight into the air by the upward thrust, and hours before the temblor strange electromagnetic signals were detected
(E) one man who was thrown straight into the air by the upward thrust, and strange electromagnetic signals that were detected hours before the temblor

a the sentence is parallel

the unexpected power....the upward thrust....the strange signals

all have an article, an adjective and a noun

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Re: Seismologists studying the earthquake that struck northern [#permalink]

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28 Apr 2010, 09:27
the unexpected power of the seismic waves-->Complete sentence
the upward thrust that threw one man straight into the air--> comeplete sentence
(and) the strange electromagnetic signals detected hours before the temblor.(i feel this is not complete the word THAT is missing here )

Am i missing some thing?

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Re: Seismologists studying the earthquake that struck northern [#permalink]

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28 Apr 2010, 11:23
ISB2011 wrote:
the unexpected power of the seismic waves-->Complete sentence
the upward thrust that threw one man straight into the air--> comeplete sentence
(and) the strange electromagnetic signals detected hours before the temblor.(i feel this is not complete the word THAT is missing here )

Am i missing some thing?

Since a colon is used any information after the colon does not have to be a complete sentence. Also, "The unexpected power of the seismic waves" is not a complete sentence

A verb is not present.
The = article
thrust = noun (subject)
of the seismic waves = prepositional phrase

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Re: Seismologists studying the earthquake that struck northern [#permalink]

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28 Apr 2010, 11:58
A it is....

coz of parallelism...."the unexpected power...., the upward thrust that..., and the strange electromagnetic signals....."

all other options are problematic.

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Re: Seismologists studying the earthquake that struck northern [#permalink]

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25 Aug 2011, 18:54
+1 for A.

The choices given made the problem easy.

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Re: Seismologists studying the earthquake that struck northern [#permalink]

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02 Feb 2013, 06:51
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The colon (:) signals an enumeration of the earthquakes' mysteries. Only A makes a simple and parallel enumeration.

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Re: Seismologists studying the earthquake that struck northern [#permalink]

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30 Mar 2014, 18:27
After the colon we have a noun phrase( the unexpected power of the seismic waves),a clause( the upward thrust that threw one man straight into the air) and another noun phrase(, and the strange electromagnetic signals detected hours before the temblor).How can these be parallel?Please Help

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Re: Seismologists studying the earthquake that struck northern [#permalink]

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31 Mar 2014, 12:53
The second fragment is not a clause. In "thrust that threw" (note that it is not "thrust threw"), "threw" doesn't function as a verb. Read it as "the X thrust" where X provides info. about that thrust.
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Re: Seismologists studying the earthquake that struck northern [#permalink]

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30 Jun 2014, 16:28
Moderators can you please lock the Choice A as Official Choice. Thanks!
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Re: Seismologists studying the earthquake that struck northern [#permalink]

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01 Oct 2015, 06:06
Some of the earthquake's mysteries are described in a series of three correctly parallel elements: (1) the unexpected power..., (2) the upward thrust..., (3) the strange electromagnetic signals ... Each of the three elements begins with an article (the), a modifier, and a noun. This parallelism is crucial, but each mystery is allowed the further modification most appropriate to it, whether a prepositional phrase (1), a clause (2), or a participial phrase (3).

Why B is wrong. "The" is omitted before the strange. The verb were detected makes the last element not parallel to the previous two.
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Re: Seismologists studying the earthquake that struck northern [#permalink]

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05 Jul 2016, 00:42
ISB2011 wrote:
Seismologists studying the earthquake that struck northern California in October 1989 are still investigating some of its mysteries: the unexpected power of the seismic waves, the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor.
(A) the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor
(B) the upward thrust that threw one man straight into the air, and strange electromagnetic signals were detected hours before the temblor
(C) the upward thrust threw one man straight into the air, and hours before the temblor strange electromagnetic signals were detected
(D) one man was thrown straight into the air by the upward thrust, and hours before the temblor strange electromagnetic signals were detected
(E) one man who was thrown straight into the air by the upward thrust, and strange electromagnetic signals that were detected hours before the temblor

the upward thrust..... and the strange electromagnetic

D and E are out

C is not parallel with the thrust

B eliminated "THE" and needs a "that" too

wee go with A

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Re: Seismologists studying the earthquake that struck northern [#permalink]

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05 Jul 2016, 04:58
A is correct.

All elements are parallel which is neither in all 4 choices.

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Re: Seismologists studying the earthquake that struck northern [#permalink]

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25 Sep 2016, 08:57
SPLIT1) PARALLELISM "THE UNEXPECTED", "THE UPWARD", "THE STRANGE". B,C,D,AND E ARE OUT.

SPLIT2) ANY INFORMATION AFTER A COLON DOES NOT HAVE TO BE A COMPLETE SENTENCE.

SPLIT3) THE PARALLELISM RULE EXPAND TO THE WORD AFTER THE MODIFIER WORD SUCH AS IN THIS EXAMPLE: ARTICLE + MODIFIER + NOUN => THE UNEXPECTED POWER, THE UPWARD THRUST, THE STRANGE ELECTROMAGNETIC SIGNALS.

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Re: Seismologists studying the earthquake that struck northern [#permalink]

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10 Jan 2017, 21:28
Seismologists studying the earthquake that struck northern California in October 1989 are still investigating some of its mysteries: the unexpected power of the seismic waves, the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor.
(A) the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor - Correct
(B) the upward thrust that threw one man straight into the air, and strange electromagnetic signals were detected hours before the temblor - Parallelism issue - strange electromagnetic signal is clause whereas the other two entities are noun phrases
(C) the upward thrust threw one man straight into the air, and hours before the temblor strange electromagnetic signals were detected - Parallelism issue
(D) one man was thrown straight into the air by the upward thrust, and hours before the temblor strange electromagnetic signals were detected - Parallelism issue and distorts the meaning - Seismologists are investigating one man
(E) one man who was thrown straight into the air by the upward thrust, and strange electromagnetic signals that were detected hours before the temblor - distorts the meaning - Seismologists are investigating one man

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Re: Seismologists studying the earthquake that struck northern [#permalink]

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23 Aug 2017, 02:55
A is Correct - This sentence correctly provides a parallel series of three mysteries.
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Re: Seismologists studying the earthquake that struck northern [#permalink]

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24 Sep 2017, 11:41
(A) the upward thrust that threw one man straight into the air, and the strange electromagnetic signals detected hours before the temblor=> correct
(B) the upward thrust that threw one man straight into the air, and strange electromagnetic signals were detected hours before the temblor=>incorrect 3rd investigation point
(C) the upward thrust threw one man straight into the air, and hours before the temblor strange electromagnetic signals were detected=> incorrect 3rd investigation point
(D) one man was thrown straight into the air by the upward thrust, and hours before the temblor strange electromagnetic signals were detected=> passive
(E) one man who was thrown straight into the air by the upward thrust, and strange electromagnetic signals that were detected hours before the temblor=> passive
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Re: Seismologists studying the earthquake that struck northern   [#permalink] 24 Sep 2017, 11:41
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