Regionally Specific Earthquake Maps
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Related Informations:
Earthquakes during the poleshift Magnetic twist and the effects
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Additional Information from the F.A.Q: Q: What is the "Earth Wobble"?
Q: How can I understand the Magnetosphere? - About the Magnetosphere
Q: Is there a relationship between disturbances in the magnetosphere and seismic activity? |
Altering Earthquakes:
As of late, I have observed that USGS and EMSC are a bit lax on their reports of earthquakes. Sometimes not seeing anything reported for hours from the last update, or seeing periods of 90-200 minutes with no earthquakes in between. My question is, are they leaving swarms of earthquakes out of their reports, or there are actually periods of no earthquakes?
SOZT: Greater than 90% of the earthquake activity is being altered by the USGS at present, which is under orders to prevent any clue being given to the public about the Earth changes caused by the presence of Planet X. Over a decade ago, the approach was to de-sensitize the live seismographs periodically, so the displays do not turn black worldwide, and to ignore the twice-a-day patterns showing up on these seismographs. Then any quakes that could be dropped were dropped. This was obvious to some who were watching the database manipulation. Quakes in the list would suddenly disappear. This was particularly the case where a quake happened in a remote location, or out in the ocean. Dumbing down the magnitude quickly followed, but in order to ensure the public did not notice, the USGS took control of all websites reporting quake statistics. At times, this control breaks, and discrepancies are reported to the public. Some countries rebel. Quake swarms are another source of control, as they pepper the databases with many quakes and skew the statistics, and thus are pulled from the database. Else the question is raised, why so many? EOZT
Will the USGS internet system be a reliable warning system for the European tsunami by registering on the net the New Madrid earthquake on the exact time it occurs?
SOZT: It will not be a lack of information from the USGS that will be the point of confusion during the earthquakes leading up to the New Madrid adjustment, it will be knowing which quake is the big one vs the many minor quakes preceding it. The USGS downgrades almost all earthquakes, to prevent meaningful statistics from being generated from their databases. They also exclude quakes whenever they can, but this is unlikely to happen in the New Madrid area as it is in the center of a populated land mass. Thus you will have magnitude 6 quakes that will be called a 5.2, magnitude 7 quakes called a 6.1, and when a magnitude 8 or greater quake occurs, it will be called a 6.9.
We would advise that rather than watching the USGS quake statistics, that you watch the Earth changes. The adjustment that will incite the European tsunami will involve bridges on the Mississippi breaking, and being impassable. The land to the west of the Mississippi will drop so that the Mississippi will become 50 miles wide in the state of Mississippi. Watch for this. The New Madrid adjustment will be several large quakes of magnitude 8-9, though will be listed as a lesser magnitude. As the N American continent continues to unzip up to and along the Seaway, the quakes will be less than a magnitude 8 but very destructive to Cleveland and Toledo and Buffalo and the inland locks along the Seaway. Thus it is not what the USGS says that should be watched, but the condition of the bridges on the Mississippi, the impact on the cities along the Seaway, and whether the inland locks are reported as inoperable. EOZT
Please collect earthquake-reports here. Significant Quakes or Magnitude 7+ can be posted separately.
[Edited by the Moderation]
Comment
Magnitude: Mw 6.3 (M 6.5)
Region: Asia KYRGYZSTAN
Date time: 2016-06-26 11:17:12.4 UTC
Depth: 20 km - (54 km [33.55 miles])
http://www.emsc-csem.org/Earthquake/earthquake.php?id=514534
http://hisz.rsoe.hu/alertmap/database/index.php?pageid=seism_index&...
Magnitude Mw 6.6
Region VANUATU
Date time 2016-06-19 09:47:24.9 UTC
Depth 10 km
http://www.emsc-csem.org/Earthquake/earthquake.php?id=513228
5.2
20km NNW of Borrego Springs, CA
2016-06-10 08:04:38 UTC12.3 km
http://earthquake.usgs.gov/earthquakes/eventpage/ci37374687#general
2016-06-10 14:28:32.3
33.46 N 116.42 W 2 2.4 SOUTHERN CALIFORNIA
2016-06-10 13:45:43.6
33.48 N 116.47 W 12 2.1 SOUTHERN CALIFORNIA
M 3.5 - SOUTHERN CALIFORNIA - 2016-06-10 11:14:11 UTC
http://www.emsc-csem.org/Earthquake/earthquake.php?id=511619
2016-06-10 09:19:24.3
33.48 N 116.42 W 10 2.9 SOUTHERN CALIFORNIA
2016-06-10 09:12:59.3
33.51 N 116.56 W 11 2.1 SOUTHERN CALIFORNIA
2016-06-10 09:09:09.0
33.46 N 116.49 W 10 2.0 SOUTHERN CALIFORNIA
2016-06-10 09:01:57.2
33.45 N 116.40 W 9 2.0 SOUTHERN CALIFORNIA
2016-06-10 08:56:37.3
33.43 N 116.45 W 12 2.6 SOUTHERN CALIFORNIA
9
IV
2016-06-10 08:46:46.3
33.46 N 116.46 W 12 3.1 SOUTHERN CALIFORNIA
2016-06-10 08:37:24.4
33.46 N 116.47 W 11 2.0 SOUTHERN CALIFORNIA
7
IV
2016-06-10 08:33:57.3
33.43 N 116.45 W 11 3.2 SOUTHERN CALIFORNIA SWARM EMSC
http://www.emsc-csem.org/Earthquake/?view=2
2.9
5km WNW of Ridgely, Tennessee
2016-06-10 08:39:39http://earthquake.usgs.gov/earthquakes/eventpage/nm60146361#general
UTC7.3 km
https://www.facebook.com/SismoMundial/photos/pcb.1064776976924465/1...
First pictures of the damage left by the 6.0 Mw earthquake in Nicaragua.
M 6.0 - NEAR COAST OF NICARAGUA - 2016-06-10 03:25:22 UTC
http://www.emsc-csem.org/Earthquake/earthquake.php?id=511538
M 6.1 - SOLOMON ISLANDS - 2016-06-10 04:17:44 UTC
http://www.emsc-csem.org/Earthquake/earthquake.php?id=511547
https://www.facebook.com/410223665706115/photos/a.410234269038388.9...
Quake Hunter Australia
Amazing statistic....
In the 19 days since a Magnitude 6.1 struck in the Northern Territory on May 20th, there has been 101 quakes in Australia.
It includes the Magnitude 5.1 in Western Australia on the 28th of May & aftershocks from both large quakes.
Image base: © Commonwealth of Australia ...
https://www.facebook.com/410223665706115/photos/pcb.108359656836881... Australian quakes continue...
Nullarbor Plain,
Western Australia
Magnitude: 3.6
Depth: 0 km
Date and Time
UTC: 09 June 2016 @ 10:17
Sydney Time: 09 June 2016 @ 20:17
Source: © Commonwealth of Australia
(Geoscience Australia) 2016
http://www.ga.gov.au
284km S of Kute,
Indonesia
Magnitude 6.2
Depth 30 km
Time
2016-06-09 04:13:08 (UTC)
Sydney Time 2016-06-09 14:13:08
Source: USGS
https://www.facebook.com/410223665706115/photos/pcb.108276223178558...
STRONG AFTERSHOCK IN
WESTERN AUSTRALIA
Norseman, Goldfields,
Western Australia.
Magnitude: 4.4
Depth: 12 km
UTC 8 June 2016 @ 02:01
Sydney Time: 8 June 2016 @ 12:01
Source: © Commonwealth of Australia
(Geoscience Australia) 2016
http://www.ga.gov.au
91km SSW of San Patricio,
Mexico
Magnitude: 6.2
Depth: 10 km
Time
2016-06-07 10:51:42 (UTC)
Sydney Time: 2016-06-07 20:51:42
Source: USGS
https://www.facebook.com/410223665706115/photos/pcb.108200742186106...
**Revised Quake**
Offshore E of Gosford,
New South Wales
(Reported felt).
Magnitude 4.0 (Downgrade from M4.1)
Depth: 0 km
Date and Time
UTC: 07 June 2016 @ 00:02:19
Sydney Time: 07 June 2016 @ 10:02
Source: © Commonwealth of Australia
(Geoscience Australia) 2016
http://www.ga.gov.au
MENTAWAI REGION,
INDONESIA
Magnitude:6.5
Depth: 60 km
Date time 2016-06-01 @ 22:56 UTC
Sydney Time: 2016-06-02 @ 08:56
Source: EMSC
92km ENE of Keelung,
Taiwan
Magnitude 6.1
Depth: 241 km
Date & Time
2016-05-31 05:23:47
Sydney Time. 2016-05-31 15:23:47
Source: USGS
Magnitude M 5.1
Region WESTERN AUSTRALIA
Date time 2016-05-28 15:30:26.8 UTC
Location 32.61 S ; 122.36 E
Depth 2 km http://www.emsc-csem.org/Earthquake/earthquake.php?id=509114
69km NNE of Visokoi Island,
South Georgia and
the South Sandwich Islands
Magnitude: 7.3
Depth: 103 km
Time
2016-05-28 09:47:03 (UTC)
Sydney Time: 2016-05-28 19:47:03
Source: USGS https://www.facebook.com/410223665706115/photos/pcb.107614323911415...
M 3.7 - PYRENEES - 2016-06-10 06:57:52 UTC
http://www.emsc-csem.org/Earthquake/earthquake.php?id=511563
30 earthquakes Magnitude 5.0+ last 7 days.
http://earthquake.usgs.gov/earthquakes/map/
5.5
27km WSW of Coquimbo, Chile
2016-06-06 13:21:58 UTC21.0 km
http://earthquake.usgs.gov/earthquakes/eventpage/us200062by
5.4
15km SW of Coquimbo, Chile
2016-06-06 13:16:02 UTC28.9 km
http://earthquake.usgs.gov/earthquakes/eventpage/us200062bu
6.0
143km SSE of Raoul Island, New Zealand
2016-06-06 02:35:23 UTC10.0 km
http://earthquake.usgs.gov/earthquakes/eventpage/us2000629f
5.4
202km NE of Neiafu, Tonga
2016-06-05 22:33:52 UTC45.0 km
http://earthquake.usgs.gov/earthquakes/eventpage/us2000628p
5.0
Central East Pacific Rise
2016-06-05 21:42:36 UTC10.0 km
http://earthquake.usgs.gov/earthquakes/eventpage/us2000628j
6.3
133km SW of Leksula, Indonesia
2016-06-05 16:25:33 UTC429.0 km
http://earthquake.usgs.gov/earthquakes/eventpage/us2000626m
5.1
145km SSE of Putre, Chile
2016-06-05 15:05:33 UTC97.4 km
http://earthquake.usgs.gov/earthquakes/eventpage/us2000626c
5.0
124km W of Airbuaya, Indonesia
2016-06-05 10:38:28 UTC11.5 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20006263
5.7
86km NW of Coquimbo, Chile
2016-06-05 05:51:09 UTC15.2 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20006257
5.2
60km SSW of Port-Vila, Vanuatu
2016-06-04 21:59:16 UTC35.0 km
http://earthquake.usgs.gov/earthquakes/eventpage/us2000623b
5.4
114km WSW of Kota Ternate, Indonesia
2016-06-04 10:44:10 UTC21.1 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20006211
5.4
81km NE of Hihifo, Tonga
2016-06-04 09:18:40 UTC32.7 km
http://earthquake.usgs.gov/earthquakes/eventpage/us2000620t
5.3
249km ESE of Nikol'skoye, Russia
2016-06-03 18:23:11 UTC14.5 km
http://earthquake.usgs.gov/earthquakes/eventpage/us200061ue
5.2
South of Tasmania
2016-06-03 13:40:12 UTC14.6 km
http://earthquake.usgs.gov/earthquakes/eventpage/us200061nz
5.1
South of the Fiji Islands
2016-06-02 11:02:48 UTC255.1 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20005zxh
5.8
179km SW of San Patricio, Mexico
2016-06-02 02:23:06 UTC10.0 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20005zv0
5.2
36km NNW of Pujocucho, Peru
2016-06-02 00:01:28 UTC15.5 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20005zue
6.6
79km W of Sungaipenuh, Indonesia
2016-06-01 22:56:00 UTC51.3 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20005zt1
5.1
82km S of Huancavelica, Peru
2016-06-01 21:31:00 UTC78.9 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20005zrz
5.4
120km S of Raoul Island, New Zealand
2016-06-01 15:37:17 UTC8.2 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20005zmf
5.1
117km SSW of Kokopo, Papua New Guinea
2016-06-01 15:24:56 UTC35.0 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20005zm3
5.4
192km SW of San Patricio, Mexico
2016-06-01 08:30:21 UTC10.0 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20005zjp
5.7
92km S of Chignik Lake, Alaska
2016-05-31 20:51:22 UTC39.2 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20005zfx
5.5
Kuril Islands
2016-05-31 10:03:59 UTC10.0 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20005zc8
6.4
93km ENE of Keelung, Taiwan
2016-05-31 05:23:47 UTC244.1 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20005zay
5.1
88km SE of Amahai, Indonesia
2016-05-30 22:27:32 UTC10.0 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20005z9v
5.4
116km S of Raoul Island, New Zealand
2016-05-30 10:55:17 UTC29.1 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20005z6d
5.2
126km ESE of Hirara, Japan
2016-05-30 09:47:47 UTC10.0 km
http://earthquake.usgs.gov/earthquakes/eventpage/us20005z67
5.2
Southern Mid-Atlantic Ridge
2016-05-30 07:35:58 UTC14.2 km
5.9
Northern Territory, Australia
2016-05-20 18:14:04 UTC10.0 km
http://earthquake.usgs.gov/earthquakes/eventpage/us10005iyk#general
5.2
119km S of Kuril'sk, Russia
2016-05-20 14:04:44 UTC82.6 km http://earthquake.usgs.gov/earthquakes/eventpage/us10005iti#general
4.9
298km WNW of Bandon, Oregon
2016-05-20 07:01:09 UTC10.0 km http://earthquake.usgs.gov/earthquakes/eventpage/us10005ir2#general
M 4.4 - SOUTHERN GREECE - 2016-05-20 20:16:51 UTC FELT
http://www.emsc-csem.org/Earthquake/earthquake.php?id=507621
M 4.3 - AEGEAN SEA - 2016-05-20 20:00:19 UTC FELT
http://www.emsc-csem.org/Earthquake/earthquake.php?id=507616
M 4.5 - SOUTHEASTERN IRAN - 2016-05-20 11:59:15 UTC
http://www.emsc-csem.org/Earthquake/earthquake.php?id=507529
M 5.0 - CATAMARCA, ARGENTINA - 2016-05-19 20:25:41 UTC FELT
http://www.emsc-csem.org/Earthquake/earthquake.php?id=507413
2.8
6km ENE of Ridgely, Tennessee
2016-05-19 11:17:02 UTC6.8 km
http://earthquake.usgs.gov/earthquakes/eventpage/nm60117467#general
Two Major Quakes Rock Ecuador (May 18)
Two quakes measuring 6.7 and 6.8 hit northern Ecuador Wednesday, injuring dozens and sending people into the streets as far away as the highland capital of Quito.
The government decided to cancel school nationwide as a precaution.
Sources
https://www.washingtonpost.com/world/the_americas/67-magnitude-eart...
http://www.reuters.com/article/us-ecuador-quake-idUSKCN0Y90TG
http://earthquake.usgs.gov/monitoring/operations/data/Seismic_Data/...
6.7
34km WNW of Rosa Zarate, Ecuador
2016-05-18 07:57:05 UTC32.4 km
http://earthquake.usgs.gov/earthquakes/eventpage/us10005i5t#general
Magnitude mb 5.3
Region TAIWAN
Date time 2016-05-18 00:22:46.5 UTC
Location 23.20 N ; 121.68 E
Depth 60 km http://www.emsc-csem.org/Earthquake/earthquake.php?id=507118
Magnitude mb 4.5
Region SALTA, ARGENTINA
Date time 2016-05-17 23:57:53.3 UTC
Location 24.32 S ; 67.15 W
http://www.emsc-csem.org/Earthquake/earthquake.php?id=507117
Magnitude 4.9
Region SOUTH SANDWICH ISLANDS REGION
Date time 2016-05-17 22:01:53.8 UTC
Location 55.69 S ; 26.24 W
Depth 10 km
http://www.emsc-csem.org/Earthquake/earthquake.php?id=507109
Magnitude 5.1
Region YUNNAN, CHINA
Date time 2016-05-17 16:48:52.1 UTC
Location 26.15 N ; 99.78 E
Depth 20 km
http://www.emsc-csem.org/Earthquake/earthquake.php?id=507067
Magnitude mb 4.7
Region IZU ISLANDS, JAPAN REGION
Date time 2016-05-17 11:36:58.6 UTC
Location 30.75 N ; 142.04 E
Depth 24 km
Magnitude mb 5.2
Region VOLCANO ISLANDS, JAPAN REGION
Date time 2016-05-17 01:47:46.0 UTC
Location 24.23 N ; 141.89 E
Depth 60 km
http://www.emsc-csem.org/Earthquake/earthquake.php?id=506943
Magnitude mb 4.9
Region KERMADEC ISLANDS, NEW ZEALAND
Date time 2016-05-17 00:41:13.0 UTC
Location 29.86 S ; 177.75 W
Depth 40 km http://www.emsc-csem.org/Earthquake/earthquake.php?id=506938
2.7
8km W of Bardwell, Kentucky
2016-05-17 23:13:33 UTC2.6 k
http://earthquake.usgs.gov/earthquakes/eventpage/nm60026603#general
M 5.0 - OFFSHORE BIO-BIO, CHILE - 2016-05-17 18:41:51 UTC FELT
http://www.emsc-csem.org/Earthquake/earthquake.php?id=507086
5.5 magnitude earthquake in Tibet: more than 60 injured, several buildings collapsed
The earthquake in Tibet has caused the collapse of several buildings
May 11, 2016
A magnitude 5.5 earthquake occurred at 01:15 UTC in Tibet, 70 km northwest from Gyamotang, with hypocenter at about 10 km. The budget is more than 60 injured, six of them in serious
conditions. The earthquake caused the collapse of several buildings and damage to road links and infrastructure, making it difficult for rescue workers to reach the worst hit places. All the wounded were recorded in Kata, and were transported to the nearest hospital.
In the affected areas have already been brought kinds of comfort and first set up temporary accommodation
https://translate.google.es/translate?sl=it&tl=en&js=y&...
M 5.5 - SOUTHERN QINGHAI, CHINA - 2016-05-11 01:15:47 UTC
http://www.emsc-csem.org/Earthquake/earthquake.php?id=505850
http://earthquake.usgs.gov/earthquakes/eventpage/us10005gf4#general
5.0
19km SSW of Murupara, New Zealand
2016-05-11 13:44:22 UTC111.4 km http://earthquake.usgs.gov/earthquakes/eventpage/us10005giu#general
M 5.2 - OFFSHORE COQUIMBO, CHILE - 2016-05-11 13:11:34 UTC FELT
http://www.emsc-csem.org/Earthquake/earthquake.php?id=505954
Euro-Med Seismological Centre (EMSC)
4 hrs ·
[BREAKING] #NewZealand: M4.7 #earthquake strikes #Christchurch.
http://www.emsc-csem.org/Earthquake/earthquake.php?id=505907
Euro-Med Seismological Centre (EMSC)
1 hr ·
[last minute] #France: #4.2 magnitude earthquake in the #Pyrenees, 20 km from #tarbes.
M 4.2 - PYRENEES - 2016-05-11 10:45:52 UTC
http://www.emsc-csem.org/Earthquake/earthquake.php?id=505923
M 3.8 - FRANCE - 2016-05-11 12:20:31 UTC
http://www.emsc-csem.org/Earthquake/earthquake.php?id=505942
-------------------------
M 4.8 - NEPAL - 2016-05-11 08:52:48 UTC
http://www.emsc-csem.org/Earthquake/earthquake.php?id=505909
https://www.facebook.com/permalink.php?story_fbid=1065395376855604&...
Offshore NW of Broom,
Western Australia
Magnitude: 5.3
Depth: 10 km
Potentially Tsunamigenic: NO
Date & time:
UTC: 10 May 2016 @ 09:44
Sydney Time: 10 May 2016 @ 19:44
Source: © Commonwealth of Australia
(Geoscience Australia) 2016
http://www.ga.gov.au
Quake Hunter Australia Some Facebook pages are saying this quake is "Rare"...
'll let the image do the talking.
https://www.facebook.com/410223665706115/photos/p.1065453730183102/...
Geoscience Australia are back on line!
Quake Hunter Australia
Yesterday at 7:26am ·
It looks like Geoscience Australia are completely off line.
We can not get any readings of seismic activity or see quakes on their web site.
Unfortunately, if you feel something, we won't be able to let you know. .
Magnitude mb 5.1 *Upgraded*
Region EAST OF KURIL ISLANDS
Date time 2016-05-10 04:02:26.9 UTC
Location 43.83 N ; 148.49 E
Depth 34 km
http://www.emsc-csem.org/Earthquake/earthquake.php?id=505707
Magnitude Mw 4.4
Region BAJA CALIFORNIA, MEXICO
Date time 2016-05-11 09:03:11.4 UTC
Location 30.83 N ; 115.73 W
Depth 15 km
http://www.emsc-csem.org/Earthquake/earthquake.php?id=505908
3.0
14km N of Delta, B.C., MX
2016-05-11 09:03:36 UTC7.8 km http://earthquake.usgs.gov/earthquakes/eventpage/ci37563896#general
Magnitude M 4.0
Region POLAND
Date time 2016-05-11 04:01:34.7 UTC
Location 51.46 N ; 16.21 E
Depth 0 km
http://www.emsc-csem.org/Earthquake/earthquake.php?id=505873
Magnitude mb 4.4
Region QUEEN CHARLOTTE ISLANDS REGION
Date time 2016-05-09 01:58:01.9 UTC
Location 52.75 N ; 132.00 W
Depth 10 km
http://www.emsc-csem.org/Earthquake/earthquake.php?id=505386
Magnitude M 5.9 *Upgraded*
Region OAXACA, MEXICO
Date time 2016-05-08 07:34:05.1 UTC
Location 16.67 N ; 97.60 W
Depth 40 km
http://www.emsc-csem.org/Earthquake/earthquake.php?id=505220
Magnitude ML 4.7
Region NEUQUEN, ARGENTINA
Date time 2016-05-07 14:09:54.1 UTC
Location 36.65 S ; 70.55 W
Depth 138 km
http://www.emsc-csem.org/Earthquake/earthquake.php?id=505103
Magnitude M 4.8
Region GULF OF ADEN
Date time 2016-05-07 10:51:58.5 UTC
Location 13.85 N ; 51.66 E
Depth 100 km
http://www.emsc-csem.org/Earthquake/earthquake.php?id=505085
Magnitude mb 4.3
Region OFF COAST OF WASHINGTON
Date time 2016-05-07 05:25:26.0 UTC
Location 47.73 N ; 128.47 W
Depth 10 kmhttp://www.emsc-csem.org/Earthquake/earthquake.php?id=505055
Magnitude M 5.6
Region MARIANA ISLANDS REGION
Date time 2016-05-05 05:21:01.6 UTC
Location 19.89 N ; 148.43 E
Depth 10 km
Scientists suggest volcano is restoring its stores of magma as rate of earthquakes has been ‘steadily increasing’ and reaching nearly 40 located per week
A swarm of more than 130 earthquakes has been detected beneath Mount St Helens over the last eight weeks, according to the US Geological Survey.
Since March, the rate of such earthquakes under the Washington state volcano has been “steadily increasing”, the USGS reported. At its peak, nearly 40 earthquakes have been located per week.
Most of the quakes have occurred about one to four miles beneath the active volcano, and most have been extremely weak at magnitudes of 0.5 or less, the largest a 1.3-level quake.
The USGS said there had been many more earthquakes that have been too small to be felt at the surface or precisely located. A 0.7-level quake “would not be felt if you were standing on the surface above it”, the seismologists wrote.
The quakes do not mean the volcano is any more likely to erupt in the near future, the USGS said, describing the earthquakes as common, “volcano-tectonic in nature [and] indicative of a slip on a small fault”.
They do, though, suggest the volcano is recharging its stores of magma, the scientists said. As the molten rock rises to fill the volcano’s magma chamber, it presses against the colder rock around it, increasing stress. This push and pull creates quakes.
The USGS noted that similar swarms caused minor convulsions beneath Mount St Helens in 2013 and 2014, and that earthquakes swarmed in the 1990s with more energy and at much higher rates.
The seismologists said they had detected “no anomalous gases, increases in ground inflation or shallow seismicity” and “no signs of an imminent eruption”.
“As was observed at Mount St Helens between 1987 [and] 2004, recharge can continue for many years beneath a volcano without an eruption,” they wrote.
Mount St Helens last erupted in 2008, after a surprise reawakening in 2004 and several years of sporadic activity. Swarms of earthquakes before the 2004 eruption averaged between magnitudes of two to four.
On 18 May 1980, it erupted to devastating effect, a column of ash reaching 80,000ft and pyroclastic flows of boiling ash, gas and rock cascading off its slopes. Part of the volcano collapsed, ash fell as far away as New Mexico and 57 people died as a result of the eruption.
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