Cutremurul se manifesta printr-o energia eliberata din focar care produce efecte. Astfel putem identifica doua modalități de măsurare a unui cutremur:

1. Prin cuantificarea energiei eliberate din focar sub forma unui număr pe o scara logaritmica, metoda denumita magnitudine și

2. Prin efectele produse, cuantificate pentru fiecare localitate sub forma unui număr roman de la I la XII, numita intensitate.

Magnitudinea:

Magnitudinea a fost inventata pentru prima data de cercetătorii Gutenberg si Richter care au pus la punct un model matematic de corelare a amplitudinii undelor seismice, măsurate de seismografe, cu o scara logaritmica. Initial, metoda a fost calibrata pentru cutremurele din California, fiind ulterior modificata pentru a putea fi adaptata la orice zona de pe glob. Magnitudinea de tip Richter nu poate fi utilizata cu precizie pentru cutremure foarte puternice, motiv pentru care, ulterior, a fost introdusa Magnitudinea moment, Mw, care măsoară momentul unui cutremur.

Momentul este produsul dintre distanta și forța. Forta este este produsul dintre masa si accelerație. Distanta este reprezentata de distanta pe care s-a mișcat falia iar forța este forța necesara pentru a mișca falia.

Conform magnitudinii putem clasifica cutremurele după cum urmează:

*Sursa: USGS

Lista cutremurelor cu magnitudine peste 8 o gasiti aici.

Intensitatea:

Intensitatea a fost prima modalitate masurare a cutremurelor prin analiza efectului acestora si a modului cum au fost percepute de populatie. Prima scara de acest fel a fost inventata de profesorul Mercalli in 1902, fiind calibrata pentru Italia. Ulterior a aparut scara Mercalli modificata, prin care s-a corelat prima scara cu diverse zone de pe glob. O asocierea intre magnitudine si intensitate este prezentata mai jos.

Ultimele cutremure cu magintudinea Mw>5, preluare din USGS:

• Magnitude: 5.2, Place: 123 km ESE of Sarangani, Philippines, Time: Dec 03, 2024 16:09:11, Location: 123 km ESE of Sarangani, Philippines, USGS Event Page
• Magnitude: 5.4, Place: Fiji region, Time: Dec 03, 2024 08:06:03, Location: Fiji region, USGS Event Page
• Magnitude: 5.1, Place: southeast Indian Ridge, Time: Dec 03, 2024 07:29:29, Location: southeast Indian Ridge, USGS Event Page
• Magnitude: 5, Place: southeast Indian Ridge, Time: Dec 02, 2024 15:11:52, Location: southeast Indian Ridge, USGS Event Page
• Magnitude: 5, Place: 219 km ESE of Yigo Village, Guam, Time: Dec 02, 2024 01:01:11, Location: 219 km ESE of Yigo Village, Guam, USGS Event Page
• Magnitude: 5, Place: Mid-Indian Ridge, Time: Dec 01, 2024 06:12:22, Location: Mid-Indian Ridge, USGS Event Page
• Magnitude: 5.4, Place: Revilla Gigedo Islands region, Time: Nov 30, 2024 15:08:50, Location: Revilla Gigedo Islands region, USGS Event Page
• Magnitude: 5.1, Place: south of the Fiji Islands, Time: Nov 30, 2024 13:15:40, Location: south of the Fiji Islands, USGS Event Page
• Magnitude: 5.1, Place: 259 km N of Saipan, Northern Mariana Islands, Time: Nov 30, 2024 10:33:40, Location: 259 km N of Saipan, Northern Mariana Islands, USGS Event Page
• Magnitude: 5.2, Place: 79 km SSE of Yonakuni, Japan, Time: Nov 30, 2024 09:07:02, Location: 79 km SSE of Yonakuni, Japan, USGS Event Page
• Magnitude: 5.7, Place: 92 km NE of Hirara, Japan, Time: Nov 30, 2024 08:46:15, Location: 92 km NE of Hirara, Japan, USGS Event Page
• Magnitude: 5.2, Place: 230 km WSW of Santiago de Cao, Peru, Time: Nov 30, 2024 00:36:00, Location: 230 km WSW of Santiago de Cao, Peru, USGS Event Page
• Magnitude: 5.1, Place: 30 km W of Ashkāsham, Afghanistan, Time: Nov 28, 2024 10:49:00, Location: 30 km W of Ashkāsham, Afghanistan, USGS Event Page
• Magnitude: 5.8, Place: 123 km E of Hicks Bay, New Zealand, Time: Nov 27, 2024 22:03:56, Location: 123 km E of Hicks Bay, New Zealand, USGS Event Page
• Magnitude: 5.7, Place: 0 km SSE of Batitang, Philippines, Time: Nov 27, 2024 21:58:45, Location: 0 km SSE of Batitang, Philippines, USGS Event Page
• Magnitude: 5.1, Place: 109 km SSW of Tsengel, Mongolia, Time: Nov 27, 2024 20:34:40, Location: 109 km SSW of Tsengel, Mongolia, USGS Event Page
• Magnitude: 5.2, Place: Scotia Sea, Time: Nov 27, 2024 15:59:18, Location: Scotia Sea, USGS Event Page
• Magnitude: 5, Place: 42 km ENE of Bacolod, Philippines, Time: Nov 27, 2024 08:59:10, Location: 42 km ENE of Bacolod, Philippines, USGS Event Page
• Magnitude: 5.4, Place: 154 km SSW of Severo-Kuril’sk, Russia, Time: Nov 26, 2024 21:01:48, Location: 154 km SSW of Severo-Kuril’sk, Russia, USGS Event Page
• Magnitude: 6.1, Place: 42 km WNW of Hakui, Japan, Time: Nov 26, 2024 13:47:03, Location: 42 km WNW of Hakui, Japan, USGS Event Page
• Magnitude: 5.1, Place: 22 km NW of Ovalle, Chile, Time: Nov 26, 2024 12:33:09, Location: 22 km NW of Ovalle, Chile, USGS Event Page
• Magnitude: 5.1, Place: 59 km NE of Masohi, Indonesia, Time: Nov 26, 2024 07:55:04, Location: 59 km NE of Masohi, Indonesia, USGS Event Page
• Magnitude: 5.3, Place: 61 km SE of Ōfunato, Japan, Time: Nov 26, 2024 04:31:20, Location: 61 km SE of Ōfunato, Japan, USGS Event Page
• Magnitude: 5.2, Place: Izu Islands, Japan region, Time: Nov 25, 2024 15:37:42, Location: Izu Islands, Japan region, USGS Event Page
• Magnitude: 5.1, Place: 80 km SE of Katsuren-haebaru, Japan, Time: Nov 25, 2024 06:10:42, Location: 80 km SE of Katsuren-haebaru, Japan, USGS Event Page
• Magnitude: 5, Place: 2 km NW of Mbamba Bay, Tanzania, Time: Nov 24, 2024 07:58:36, Location: 2 km NW of Mbamba Bay, Tanzania, USGS Event Page
• Magnitude: 5, Place: Easter Island region, Time: Nov 24, 2024 01:08:03, Location: Easter Island region, USGS Event Page
• Magnitude: 5.1, Place: Macquarie Island region, Time: Nov 23, 2024 23:55:55, Location: Macquarie Island region, USGS Event Page
• Magnitude: 5.1, Place: 58 km E of Noda, Japan, Time: Nov 23, 2024 23:22:30, Location: 58 km E of Noda, Japan, USGS Event Page
• Magnitude: 5.9, Place: 238 km E of Levuka, Fiji, Time: Nov 23, 2024 19:04:30, Location: 238 km E of Levuka, Fiji, USGS Event Page
• Magnitude: 5.2, Place: 193 km WSW of Lorengau, Papua New Guinea, Time: Nov 23, 2024 10:47:50, Location: 193 km WSW of Lorengau, Papua New Guinea, USGS Event Page
• Magnitude: 5.1, Place: 198 km WSW of Lorengau, Papua New Guinea, Time: Nov 23, 2024 10:25:35, Location: 198 km WSW of Lorengau, Papua New Guinea, USGS Event Page
• Magnitude: 5.4, Place: 23 km ENE of Karakenja, Tajikistan, Time: Nov 23, 2024 08:33:03, Location: 23 km ENE of Karakenja, Tajikistan, USGS Event Page
• Magnitude: 5, Place: southwest of Africa, Time: Nov 22, 2024 11:25:19, Location: southwest of Africa, USGS Event Page
• Magnitude: 5.2, Place: 104 km NNE of Tobelo, Indonesia, Time: Nov 22, 2024 07:51:06, Location: 104 km NNE of Tobelo, Indonesia, USGS Event Page
• Magnitude: 5.2, Place: 178 km SSW of Merizo Village, Guam, Time: Nov 21, 2024 15:39:52, Location: 178 km SSW of Merizo Village, Guam, USGS Event Page
• Magnitude: 5.2, Place: 186 km W of Abepura, Indonesia, Time: Nov 21, 2024 12:12:52, Location: 186 km W of Abepura, Indonesia, USGS Event Page
• Magnitude: 5.1, Place: 151 km SSW of Hihifo, Tonga, Time: Nov 20, 2024 18:44:16, Location: 151 km SSW of Hihifo, Tonga, USGS Event Page
• Magnitude: 5.1, Place: 23 km E of Vostok, Russia, Time: Nov 20, 2024 15:09:02, Location: 23 km E of Vostok, Russia, USGS Event Page
• Magnitude: 5.7, Place: Greenland Sea, Time: Nov 20, 2024 14:43:53, Location: Greenland Sea, USGS Event Page
• Magnitude: 5.5, Place: 112 km WNW of Houma, Tonga, Time: Nov 20, 2024 10:42:57, Location: 112 km WNW of Houma, Tonga, USGS Event Page
• Magnitude: 5.3, Place: 154 km S of Lata, Solomon Islands, Time: Nov 20, 2024 09:26:28, Location: 154 km S of Lata, Solomon Islands, USGS Event Page
• Magnitude: 5, Place: 59 km SSE of Ōyama, Japan, Time: Nov 19, 2024 18:36:11, Location: 59 km SSE of Ōyama, Japan, USGS Event Page
• Magnitude: 5, Place: 31 km S of Pondaguitan, Philippines, Time: Nov 19, 2024 08:34:01, Location: 31 km S of Pondaguitan, Philippines, USGS Event Page
• Magnitude: 5.6, Place: 48 km W of Houma, Tonga, Time: Nov 19, 2024 02:41:51, Location: 48 km W of Houma, Tonga, USGS Event Page
• Magnitude: 5, Place: Southwest Indian Ridge, Time: Nov 18, 2024 04:57:11, Location: Southwest Indian Ridge, USGS Event Page
• Magnitude: 5.2, Place: 32 km N of Basco, Philippines, Time: Nov 18, 2024 03:35:32, Location: 32 km N of Basco, Philippines, USGS Event Page
• Magnitude: 5.1, Place: 150 km E of Saipan, Northern Mariana Islands, Time: Nov 18, 2024 02:18:49, Location: 150 km E of Saipan, Northern Mariana Islands, USGS Event Page
• Magnitude: 5, Place: southern Mid-Atlantic Ridge, Time: Nov 18, 2024 00:00:44, Location: southern Mid-Atlantic Ridge, USGS Event Page
• Magnitude: 5.1, Place: southern Mid-Atlantic Ridge, Time: Nov 17, 2024 23:16:14, Location: southern Mid-Atlantic Ridge, USGS Event Page
• Magnitude: 5, Place: southern Mid-Atlantic Ridge, Time: Nov 17, 2024 23:05:55, Location: southern Mid-Atlantic Ridge, USGS Event Page
• Magnitude: 5.2, Place: 122 km ESE of Kokopo, Papua New Guinea, Time: Nov 17, 2024 18:55:37, Location: 122 km ESE of Kokopo, Papua New Guinea, USGS Event Page
• Magnitude: 6.1, Place: 155 km SSE of Koshima, Japan, Time: Nov 17, 2024 12:16:29, Location: 155 km SSE of Koshima, Japan, USGS Event Page
• Magnitude: 5.1, Place: 78 km ENE of Petropavlovsk-Kamchatsky, Russia, Time: Nov 16, 2024 13:47:36, Location: 78 km ENE of Petropavlovsk-Kamchatsky, Russia, USGS Event Page
• Magnitude: 5, Place: 10 km N of Hiranai, Japan, Time: Nov 16, 2024 12:22:17, Location: 10 km N of Hiranai, Japan, USGS Event Page
• Magnitude: 5.4, Place: 192 km SSE of Lata, Solomon Islands, Time: Nov 16, 2024 08:22:26, Location: 192 km SSE of Lata, Solomon Islands, USGS Event Page
• Magnitude: 5.2, Place: southern Mid-Atlantic Ridge, Time: Nov 16, 2024 02:17:09, Location: southern Mid-Atlantic Ridge, USGS Event Page
• Magnitude: 5, Place: 298 km ESE of Vao, New Caledonia, Time: Nov 15, 2024 11:38:19, Location: 298 km ESE of Vao, New Caledonia, USGS Event Page
• Magnitude: 5.5, Place: Balleny Islands region, Time: Nov 15, 2024 10:41:05, Location: Balleny Islands region, USGS Event Page
• Magnitude: 5.4, Place: 129 km SE of Neiafu, Tonga, Time: Nov 15, 2024 08:41:47, Location: 129 km SE of Neiafu, Tonga, USGS Event Page
• Magnitude: 6.6, Place: 123 km ESE of Kokopo, Papua New Guinea, Time: Nov 15, 2024 05:28:29, Location: 123 km ESE of Kokopo, Papua New Guinea, USGS Event Page
• Magnitude: 5, Place: 175 km SSE of Burica, Panama, Time: Nov 15, 2024 03:46:45, Location: 175 km SSE of Burica, Panama, USGS Event Page
• Magnitude: 5.1, Place: 119 km WSW of Adak, Alaska, Time: Nov 15, 2024 00:11:58, Location: 119 km WSW of Adak, Alaska, USGS Event Page
• Magnitude: 5.1, Place: 118 km WSW of Bandar Lampung, Indonesia, Time: Nov 14, 2024 19:08:17, Location: 118 km WSW of Bandar Lampung, Indonesia, USGS Event Page
• Magnitude: 5, Place: 13 km SSW of Montecillos, Mexico, Time: Nov 14, 2024 09:16:27, Location: 13 km SSW of Montecillos, Mexico, USGS Event Page
• Magnitude: 5.1, Place: 37 km WSW of Ashkāsham, Afghanistan, Time: Nov 13, 2024 05:13:20, Location: 37 km WSW of Ashkāsham, Afghanistan, USGS Event Page
• Magnitude: 5.1, Place: South Sandwich Islands region, Time: Nov 13, 2024 01:29:31, Location: South Sandwich Islands region, USGS Event Page
• Magnitude: 5, Place: 11 km S of Santiago Tepextla, Mexico, Time: Nov 13, 2024 00:18:23, Location: 11 km S of Santiago Tepextla, Mexico, USGS Event Page
• Magnitude: 5.4, Place: north of Ascension Island, Time: Nov 12, 2024 16:08:42, Location: north of Ascension Island, USGS Event Page
• Magnitude: 5.3, Place: 38 km SE of Kokopo, Papua New Guinea, Time: Nov 12, 2024 14:31:59, Location: 38 km SE of Kokopo, Papua New Guinea, USGS Event Page
• Magnitude: 5.2, Place: 135 km W of Ternate, Indonesia, Time: Nov 12, 2024 09:24:26, Location: 135 km W of Ternate, Indonesia, USGS Event Page
• Magnitude: 5, Place: Banda Sea, Time: Nov 11, 2024 13:35:30, Location: Banda Sea, USGS Event Page
• Magnitude: 5.6, Place: Maug Islands region, Northern Mariana Islands, Time: Nov 11, 2024 10:16:58, Location: Maug Islands region, Northern Mariana Islands, USGS Event Page
• Magnitude: 5, Place: 109 km E of ‘Ohonua, Tonga, Time: Nov 11, 2024 07:14:57, Location: 109 km E of ‘Ohonua, Tonga, USGS Event Page
• Magnitude: 5, Place: 100 km NNE of Hihifo, Tonga, Time: Nov 11, 2024 04:02:54, Location: 100 km NNE of Hihifo, Tonga, USGS Event Page
• Magnitude: 5, Place: 107 km NW of Tual, Indonesia, Time: Nov 10, 2024 22:35:12, Location: 107 km NW of Tual, Indonesia, USGS Event Page
• Magnitude: 6.8, Place: 40 km SSW of Bartolomé Masó, Cuba, Time: Nov 10, 2024 16:49:50, Location: 40 km SSW of Bartolomé Masó, Cuba, USGS Event Page
• Magnitude: 5.8, Place: 35 km S of Bartolomé Masó, Cuba, Time: Nov 10, 2024 15:50:03, Location: 35 km S of Bartolomé Masó, Cuba, USGS Event Page
• Magnitude: 5.2, Place: Kermadec Islands, New Zealand, Time: Nov 10, 2024 15:46:54, Location: Kermadec Islands, New Zealand, USGS Event Page
• Magnitude: 5, Place: Fiji region, Time: Nov 10, 2024 09:43:22, Location: Fiji region, USGS Event Page
• Magnitude: 5, Place: 174 km WSW of Bayanhongor, Mongolia, Time: Nov 09, 2024 20:37:50, Location: 174 km WSW of Bayanhongor, Mongolia, USGS Event Page
• Magnitude: 5.8, Place: 77 km SE of Burica, Panama, Time: Nov 09, 2024 19:30:18, Location: 77 km SE of Burica, Panama, USGS Event Page
• Magnitude: 5.1, Place: southern Mid-Atlantic Ridge, Time: Nov 09, 2024 13:45:33, Location: southern Mid-Atlantic Ridge, USGS Event Page
• Magnitude: 5.6, Place: 78 km SE of Burica, Panama, Time: Nov 09, 2024 10:03:40, Location: 78 km SE of Burica, Panama, USGS Event Page
• Magnitude: 5, Place: Izu Islands, Japan region, Time: Nov 09, 2024 05:00:39, Location: Izu Islands, Japan region, USGS Event Page
• Magnitude: 5.1, Place: 21 km SSW of Kovancılar, Turkey, Time: Nov 08, 2024 14:04:01, Location: 21 km SSW of Kovancılar, Turkey, USGS Event Page
• Magnitude: 5, Place: 256 km WNW of Cochrane, Chile, Time: Nov 08, 2024 11:45:32, Location: 256 km WNW of Cochrane, Chile, USGS Event Page
• Magnitude: 6.3, Place: 238 km WNW of Cochrane, Chile, Time: Nov 08, 2024 11:38:00, Location: 238 km WNW of Cochrane, Chile, USGS Event Page
• Magnitude: 5.1, Place: 56 km E of Puyo, Ecuador, Time: Nov 08, 2024 10:37:42, Location: 56 km E of Puyo, Ecuador, USGS Event Page
• Magnitude: 5, Place: West Chile Rise, Time: Nov 08, 2024 02:53:22, Location: West Chile Rise, USGS Event Page
• Magnitude: 5.1, Place: Volcano Islands, Japan region, Time: Nov 07, 2024 19:53:54, Location: Volcano Islands, Japan region, USGS Event Page
• Magnitude: 5.2, Place: 143 km WNW of Panguna, Papua New Guinea, Time: Nov 07, 2024 16:42:05, Location: 143 km WNW of Panguna, Papua New Guinea, USGS Event Page
• Magnitude: 5.1, Place: South Sandwich Islands region, Time: Nov 07, 2024 09:00:05, Location: South Sandwich Islands region, USGS Event Page
• Magnitude: 5.4, Place: Mid-Indian Ridge, Time: Nov 07, 2024 04:31:33, Location: Mid-Indian Ridge, USGS Event Page
• Magnitude: 5, Place: Volcano Islands, Japan region, Time: Nov 07, 2024 02:12:34, Location: Volcano Islands, Japan region, USGS Event Page
• Magnitude: 5.5, Place: Kermadec Islands, New Zealand, Time: Nov 07, 2024 01:55:31, Location: Kermadec Islands, New Zealand, USGS Event Page
• Magnitude: 5.2, Place: Volcano Islands, Japan region, Time: Nov 07, 2024 01:11:47, Location: Volcano Islands, Japan region, USGS Event Page
• Magnitude: 5.1, Place: Volcano Islands, Japan region, Time: Nov 06, 2024 22:59:15, Location: Volcano Islands, Japan region, USGS Event Page
• Magnitude: 5.1, Place: Volcano Islands, Japan region, Time: Nov 06, 2024 22:59:01, Location: Volcano Islands, Japan region, USGS Event Page
• Magnitude: 5.8, Place: Volcano Islands, Japan region, Time: Nov 06, 2024 22:55:03, Location: Volcano Islands, Japan region, USGS Event Page
• Magnitude: 5, Place: 52 km S of Hualien City, Taiwan, Time: Nov 06, 2024 17:19:36, Location: 52 km S of Hualien City, Taiwan, USGS Event Page
• Magnitude: 5.9, Place: 295 km E of Levuka, Fiji, Time: Nov 06, 2024 15:55:08, Location: 295 km E of Levuka, Fiji, USGS Event Page
• Magnitude: 5.2, Place: Fiji region, Time: Nov 06, 2024 15:38:47, Location: Fiji region, USGS Event Page
• Magnitude: 5.9, Place: 124 km ESE of Kokopo, Papua New Guinea, Time: Nov 06, 2024 14:36:23, Location: 124 km ESE of Kokopo, Papua New Guinea, USGS Event Page
• Magnitude: 5, Place: 46 km WSW of Ollagüe, Chile, Time: Nov 06, 2024 07:01:19, Location: 46 km WSW of Ollagüe, Chile, USGS Event Page
• Magnitude: 5.7, Place: 17 km NNW of Santa Ana, Peru, Time: Nov 05, 2024 19:39:43, Location: 17 km NNW of Santa Ana, Peru, USGS Event Page
• Magnitude: 5.3, Place: 296 km E of Poronaysk, Russia, Time: Nov 05, 2024 10:06:02, Location: 296 km E of Poronaysk, Russia, USGS Event Page
• Magnitude: 5, Place: 41 km NNW of Pizarro, Colombia, Time: Nov 05, 2024 03:14:06, Location: 41 km NNW of Pizarro, Colombia, USGS Event Page
• Magnitude: 5, Place: 50 km SE of Pangai, Tonga, Time: Nov 05, 2024 00:31:17, Location: 50 km SE of Pangai, Tonga, USGS Event Page
• Magnitude: 5.2, Place: 10 km SW of Néa Poteídaia, Greece, Time: Nov 03, 2024 17:03:52, Location: 10 km SW of Néa Poteídaia, Greece, USGS Event Page
• Magnitude: 5, Place: Volcano Islands, Japan region, Time: Nov 03, 2024 12:09:52, Location: Volcano Islands, Japan region, USGS Event Page
• Magnitude: 5.8, Place: 82 km ESE of Adak, Alaska, Time: Nov 03, 2024 10:56:48, Location: 82 km ESE of Adak, Alaska, USGS Event Page
• Magnitude: 5.4, Place: 130 km NNE of Barrancas, Argentina, Time: Nov 03, 2024 04:04:04, Location: 130 km NNE of Barrancas, Argentina, USGS Event Page