Multiple Earthquakes Strike Near Leewards

Between May 7th and May 13th, the University of the West Indies Seismic Research Centre (UWI SRC) recorded three light (M4.0+) earthquakes near Anguilla, Saint Martin/Sint Maarten, and Saint Barthelemy. Quakes in this particular area are fairly common.

The first event occurred at 8:17 PM on May 7th, 2022. The quake registered at a magnitude of 4.2 (mt) on the Richter scale, approximately 18.6 kilometers west-northwest of The Valley, Anguilla. This event was located at 62.230°W and 18.240°N, at a depth of 77.3 kilometers, according to the UWI SRC. Weak shaking was reported on Sint Maarten and Anguilla.

Just over six hours later, at 1:56 PM on May 8th, 2022, another quake was recorded, this time approximately 18 kilometers northeast of Gustavia, Saint Barthelemy. The event was recorded at magnitude 4.0 (mt) and located at 62.720°W and 18.000°N, at a depth of 105.9 kilometers, according to the UWI SRC. No shaking was reported from this quake.

Several days later, at 3:07 AM on May 13th, 2022, a third light earthquake was recorded. This new event was located approximately 27.6 kilometers southwest of Philipsburg, Sint Maarten, at 63.280°W and 17.920°N. The event was recorded at magnitude 4.3 (mt) and located at a depth of 115 kilometers, according to the UWI SRC. This event was reported felt across both the Dutch Sint Maarten and French Saint Martin with weak shaking.

There was no tsunami threat.

There are four conditions necessary for an earthquake to cause a tsunami:

  1. The earthquake must occur beneath the ocean or cause material to slide within or into the ocean.
  2. The earthquake must be strong, at least magnitude 6.5.
  3. The earthquake must rupture the Earth’s surface and it must occur at a shallow depth – less than 70 kilometers below the surface of the Earth.
  4. The earthquake must cause vertical movement of the seafloor (up to several meters).

None of these conditions occurred.

Note that different seismic monitoring agencies use different methods, or several methods, for processing quake parameters across the globe. Each method has its limitations and will likely produce different results within the range of the data’s uncertainty. This is generally accepted within the scientific community.

Read More

Earthquake Magnitude & Intensity

Earthquake magnitude is a quantitative, mathematical calculation to measure the energy released at the source of an earthquake. On the other hand, earthquake intensity is the qualitative…

Can earthquakes be predicted or forecasted?

Earthquakes cannot be predicted based on current research and technology. Earthquake prediction is a branch of seismology focused on predicting an exact time, location, and magnitude of an…

Has there been an increase in seismic activity?

Seismicity across Trinidad and Tobago, showing thousands of earthquakes recorded since 1960.
Seismicity across Trinidad and Tobago, showing thousands of earthquakes recorded since 1960.

Trinidad and Tobago and the surrounding region are very seismically active. Across the Eastern Caribbean, over 2,200 earthquakes are recorded annually.

On average, the Eastern Caribbean has seen a pattern of major (M7.0-M7.9) quakes every 20 to 30 years. That pattern has stayed true. The last major (M7.0-7.9) quake occurred north of Martinique in 2007. 

Historical patterns indicate that great quakes (M8.0+) on the Richter Scale have occurred every century in the region. The probability of another event at that level is high since the last >M8.0 earthquake occurred in 1843. While it is impossible to say definitively when the next great quake would occur in the region, the time since the last one is now more than 170 years ago.

It is important to note seismic activity *cannot* be predicted – meaning the precise time, date, magnitude, depth, etc., cannot be known ahead of time based on current research and technology.

Now is the time to create or go over your earthquake preparedness plan and know what to do during, before, and after an earthquake.

Read More

Earthquake Safety

In our region, earthquakes can strike at any time and any place, so it is important to know how to keep yourself safe when one strikes.

Total
0
Shares
Related Posts
Total
0
Share
perihoki perihoki perihoki perihoki perihoki duta76 duta76 duta76 duta76 duta76 gates of olmpus perihoki main sekali bisa langsung wede perihoki beri perkalian besar di starlight princess x1000 panduan trik jam gacor pgsoft mahjong ways di perihoki pola jackpot mahjong ways 2 pgsoft perihoki buat heboh perihoki beri cara dapat scatter hitam mahjong wins 3 scatter petir emas gates of olympus duta76 auto tajir duta76 bongkar rahasia gitar dan emas wild bandito rtp pgsoft mahjong ways 2 naik pola duta76 lagi bocor pola jitu duta76 mahjong ways pgsoft jadi perbincangan main di duta76 pemuda ini dapat jackpot mahjong wins 3 Aksi kilat farhan mahjong ways Kisah spektakuler joko mahjong wins Kode rahasia warna scatter mahjong wins Kombinasi warna scatter mahjong wins Mahjong wins 3 pola lintas generasi Pertarungan epik scatter hitam mahjong wins Pgsoft luncurkan pola eksklusif mahjong ways Pgsoft mahjong ways 2 update pola scatter shock Strategi kilat pro player scatter hitam mahjong Trik terpendam mahjong ways 2 pola gacor Kejutan jackpot dari modal kecil Keraguan menjadi jalan scatter hitam Mahjong bukan jalan pintas tapi ujian menuju hasil tak terduga Scatter bukan sekedar hoki tapi hasil ketekunan Teknik sederhana menjebak scatter hitam Jam kopi jadi kunci keberuntungan Mahjong bersama rakyat hingga kalangan sultan Mahjong jadi permainan harian yang menyenangkan untuk semua usia Main mahjong setiap hari aman dan menyenangkan Spin bersambung menjaga momentum dan mengunci peluang menang Gelombang antusiasme saat mahjong raih kemenangan Keberuntungan menyapa pemain mahjong minggu ini Metode raih scatter hitam pemain bandung cuan maksimal Pegawai fotokopi mendadak raih scatter hitam Sistem baru mahjong lebih ringan dan menguntungkan