Written by on . Last updated April 17th, 2024.

In the Java Sea 159 kilometer from Surabaya, Indonesia, a shallow and strong Magnitude 6.4 earthquake occurred in the afternoon of Friday March 22nd, 2024. Earthquakes like this can cause significant economic damage and have a significant risk at casualties.

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Earthquake Summary

This earthquake hit under water in the Java Sea, 25 kilometers (16 mi) off the coast of Indonesia, 159 kilometer north-northwest of Surabaya in East Java. The center of this earthquake had a very shallow depth of 9 km. Shallow earthquakes usually have a larger impact than earthquakes deep in the earth.

Date and Time: Mar 22, 2024 15:52 (Jakarta Time)
- Mar 22, 2024 08:52 Universal Time.
Location: 159 km NNW of Surabaya, East Java, Indonesia.
Coordinates 5°52'32"S 112°21'58"E.
Map: Map of area around epicenter.
Map of area around epicenter. Click to open in Google Maps.
Magnitude: MAG 6.4
Detected by 65 stations. Maximum Error Range ±0.038 .
Depth: 9 km (6 mi)
A very shallow depth.
Max. Intensity:
VIII
Severe

On the Modified Mercalli Scale.
Tsunami Risk: Low tsunami risk
Earthquakes under MAG-6.5 do not usually cause tsunami's.
Always stay cautious - More info here.

Significant impact predicted

The US Geographic Survey (USGS) describes the impact of this earthquake as follows:

Five persons injured, 774 homes destoyred, 4982 buildings damaged in the Bawean-Surabaya-Tuban region.

Based on scientific estimates by the USGS, the risk of high fatalities for this earthquake is classified at level YELLOW (significant). They expect an 50% likelyhood of between 0 and 1 fatalities, and a 99% chance that the number of fatalities falls no higher than 100.

The USGS classifies the economic impact of this earthquake at level YELLOW (significant). They expect an 48% likelyhood of between 0 and 1 million US Dollars in economic damage and impact, and a 99% chance that the economic impact of this earthquake falls no higher than 100 million USD.

Roughly 33 million people exposed to shaking

An estimated 33 million have been exposed to shaking (An MMI or Modified Mercalli Intensity level II or higher) as a result of this earthquake according scientific estimates published by the USGS.

Severe shaking and likely moderate to heavy damage may have been experienced by an estimated 1,690 people. At VIII, it is the highest MMI level this earthquake has caused. Intensity level IV was experienced by the majority of people (around 29 million). In their region, light shaking and likely no damage can be expected. All exposure to shaking was within the borders of Indonesia .

People MMI Level Shaking Damage
0
I
Not noticable None
0
II
Very weak None
2,782,000
III
Weak Probably none
28,730,000
IV
Light Likely none
1,627,000
V
Moderate Very light
10,140
VI
Strong Light
26,830
VII
Very Strong Moderate
1,690
VIII
Severe Moderate to heavy
0
IX
Violent Heavy
0
X
Extreme Very heavy

Nearby towns and cities

This earthquake may have been felt in Indonesia . Located 111 kilometer (69 mi) north of the epicenter of this earthquake, Paciran (East Java, Indonesia) is the nearest significant population center. The intensity of shaking and damage in Paciran is estimated to be around level IV on the Modified Mercalli Intensity scale (light shaking, likely no damage).

Major cities near this earthquake: Surabaya is located 159 km to the south-southeast and experienced an intensity of V (moderate shaking, very light damage). Semarang is located 248 km to the west-southwest (intensity unknown, possibly low). Malang is located 236 km to the south (intensity unknown, possibly low).

A complete list of nearby places is included below. Estimated intensity data (MMI) sourced from a shake-map published by the US Geographic Survey is shown where available (cities without data probably experienced little impact).

Overview of nearby places

Distance Place Intensity (MMI)
111 km (69 mi)
S from epicenter
Paciran

East Java, Indonesia.
IV
Light
118 km (73 mi)
SSW from epicenter
Tuban

East Java, Indonesia.
IV
Light
136 km (85 mi)
SW from epicenter
Lasem

Central Java, Indonesia.
IV
Light
136 km (85 mi)
SSE from epicenter
Bangkalan

East Java, Indonesia.
IV
Light
138 km (86 mi)
S from epicenter
Lamongan

East Java, Indonesia.
IV
Light
139 km (86 mi)
S from epicenter
Babat

East Java, Indonesia.
IV
Light
146 km (91 mi)
SW from epicenter
Rembangan

Central Java, Indonesia.
IV
Light
146 km (91 mi)
SSE from epicenter
Gresik

East Java, Indonesia.
IV
Light
147 km (91 mi)
SSE from epicenter
Kebomas

East Java, Indonesia.
IV
Light
149 km (93 mi)
SSE from epicenter
Kamal

East Java, Indonesia.
IV
Light
151 km (94 mi)
SSW from epicenter
Bojonegoro

East Java, Indonesia.
IV
Light
159 km (99 mi)
SSE from epicenter
Surabaya

East Java, Indonesia.
V
Moderate
161 km (100 mi)
SW from epicenter
Blora

Central Java, Indonesia.
IV
Light
163 km (101 mi)
WSW from epicenter
Tayu

Central Java, Indonesia.
IV
Light
164 km (102 mi)
SW from epicenter
Juwana

Central Java, Indonesia.
IV
Light
165 km (103 mi)
SSW from epicenter
Cepu

Central Java, Indonesia.
IV
Light
172 km (107 mi)
S from epicenter
Krian

East Java, Indonesia.
IV
Light
173 km (107 mi)
SSE from epicenter
Gedangan

East Java, Indonesia.
IV
Light
175 km (109 mi)
SE from epicenter
Sampang

East Java, Indonesia.
IV
Light
176 km (109 mi)
SW from epicenter
Pati

Central Java, Indonesia.
IV
Light
177 km (110 mi)
S from epicenter
Mojokerto

East Java, Indonesia.
IV
Light
177 km (110 mi)
SSE from epicenter
Buduran

East Java, Indonesia.
IV
Light
179 km (111 mi)
SSE from epicenter
Sidoarjo

East Java, Indonesia.
IV
Light
180 km (112 mi)
S from epicenter
Tulangan Utara

East Java, Indonesia.
IV
Light
184 km (114 mi)
SSE from epicenter
Tanggulangin

East Java, Indonesia.
IV
Light
186 km (116 mi)
S from epicenter
Jombang

East Java, Indonesia.
IV
Light
188 km (117 mi)
SE from epicenter
Pamekasan

East Java, Indonesia.
IV
Light
190 km (118 mi)
S from epicenter
Diwek

East Java, Indonesia.
IV
Light
190 km (118 mi)
SW from epicenter
Jekulo

Central Java, Indonesia.
IV
Light
192 km (119 mi)
S from epicenter
Kertosono

East Java, Indonesia.
IV
Light
193 km (120 mi)
WSW from epicenter
Gebog

Central Java, Indonesia.
IV
Light
194 km (121 mi)
WSW from epicenter
Baekrajan

Central Java, Indonesia.
IV
Light
195 km (121 mi)
WSW from epicenter
Batang

Central Java, Indonesia.
IV
Light
198 km (123 mi)
WSW from epicenter
Kudus

Central Java, Indonesia.
IV
Light
198 km (123 mi)
SSE from epicenter
Bangil

East Java, Indonesia.
IV
Light
199 km (124 mi)
SSW from epicenter
Nganjuk

East Java, Indonesia.
IV
Light
206 km (128 mi)
SSE from epicenter
Pasuruan

East Java, Indonesia.
IV
Light
209 km (130 mi)
SW from epicenter
Purwodadi

Central Java, Indonesia.
IV
Light
216 km (134 mi)
SSW from epicenter
Madiun

East Java, Indonesia.
IV
Light
219 km (136 mi)
S from epicenter
Kediri

East Java, Indonesia.
221 km (137 mi)
S from epicenter
Lawang

East Java, Indonesia.
229 km (142 mi)
SSE from epicenter
Probolinggo

East Java, Indonesia.
236 km (147 mi)
S from epicenter
Malang

East Java, Indonesia.
248 km (154 mi)
WSW from epicenter
Semarang

Central Java, Indonesia.
248 km (154 mi)
S from epicenter
Blitar

East Java, Indonesia.
252 km (157 mi)
SW from epicenter
Surakarta

Central Java, Indonesia.
IV
Light
263 km (163 mi)
SW from epicenter
Salatiga

Central Java, Indonesia.
273 km (170 mi)
SE from epicenter
Situbondo

East Java, Indonesia.
295 km (183 mi)
SSE from epicenter
Jember

East Java, Indonesia.
308 km (191 mi)
SW from epicenter
Yogyakarta

Yogyakarta, Indonesia.
376 km (234 mi)
NE from epicenter
Banjarmasin

South Kalimantan, Indonesia.
377 km (234 mi)
N from epicenter
Sampit

Central Kalimantan, Indonesia.
390 km (242 mi)
SE from epicenter
Singaraja

Bali, Indonesia.
Cities and Towns around the epicenter of this earthquake.

Earthquake Intensity Map

The graph below overlays a map of the region around the epicenter with earthquake intensity data provided by the US Geographic Survey. The highest intensity level detected for this earthquake is VIII.

I Not felt
II Weak
III Weak
IV Light
V Moderate
VI Strong
VII Very Strong
VIII Severe
IX Violent
X Extreme
Earthquake Intensity Map based on Shakemap Data provided by USGS.

Shaking reported by 97 people

People that feel an earthquake may report their experience to the US Geographic Survey. Currently, 97 people have reported shaking in 40 places, all within Indonesia.We keep updating this article as more ground reports become available. You may report that you felt this earthquake here.

Places with most reports:

  • Surabaya, Jawa Timur, Indonesia: 30 people.
  • Gedangan, Jawa Timur, Indonesia: 10 people.
  • Jakarta, Jakarta, Indonesia: 6 people.
  • Semarang, Jawa Tengah, Indonesia: 3 people.
  • Banjarmasin, Kalimantan Selatan, Indonesia: 3 people.
  • Malang, Jawa Timur, Indonesia: 3 people.
  • Driyorejo, Jawa Timur, Indonesia: 2 people.
  • Bandung, Jawa Barat, Indonesia: 2 people.
  • Bekasi, Jawa Barat, Indonesia: 2 people.
  • Pamanukan, Jawa Barat, Indonesia: 2 people.

58 Aftershocks detected

After this earthquake struck, 58 smaller aftershocks occurred. Just 13 hrs after this main shock, an earthquake measuring MAG-4.5 was detected 2.9 km (1.8 mi) east of this earthquake.

Before this earthquake struck, 10 smaller foreshocks occurred. Roughly 5 hrs before this earthquake, a foreshock measuring MAG-5.6 was detected nearby this earthquake.

Overview of foreshocks and aftershocks

Classification Magnitude When Where
Foreshock M 5.6 5 hrs earlier
Mar 22, 2024 11:22 (Jakarta Time)
8 km (5 mi)
NW from Main Shock.
Foreshock M 3.3 4 hrs earlier
Mar 22, 2024 11:56 (Jakarta Time)
16 km (10 mi)
N from Main Shock.
Foreshock M 5.2 3 hrs earlier
Mar 22, 2024 12:31 (Jakarta Time)
4 km (2.5 mi)
SSE from Main Shock.
Foreshock M 3.9 3 hrs earlier
Mar 22, 2024 12:37 (Jakarta Time)
19 km (12 mi)
NNW from Main Shock.
Foreshock M 3.5 3 hrs earlier
Mar 22, 2024 12:40 (Jakarta Time)
9 km (6 mi)
NNW from Main Shock.
Foreshock M 3.2 3 hrs earlier
Mar 22, 2024 12:44 (Jakarta Time)
21 km (13 mi)
N from Main Shock.
Foreshock M 3.9 3 hrs earlier
Mar 22, 2024 13:05 (Jakarta Time)
11 km (7 mi)
N from Main Shock.
Foreshock M 3.5 3 hrs earlier
Mar 22, 2024 13:18 (Jakarta Time)
13 km (8 mi)
N from Main Shock.
Foreshock M 3.6 2 hrs earlier
Mar 22, 2024 13:53 (Jakarta Time)
8 km (5 mi)
WNW from Main Shock.
Foreshock M 3.5 34 mins earlier
Mar 22, 2024 15:19 (Jakarta Time)
0.8 km (0.5 mi)
NE from Main Shock.
Main Shock
This Earthquake
M 6.4 Mar 22, 2024 15:52
(Jakarta Time)
-
Aftershock M 4.4 20 mins later
Mar 22, 2024 16:12 (Jakarta Time)
22 km (13 mi)
NNE from Main Shock.
Aftershock M 4.5 26 mins later
Mar 22, 2024 16:19 (Jakarta Time)
12 km (7 mi)
ESE from Main Shock.
Aftershock M 3.6 35 mins later
Mar 22, 2024 16:28 (Jakarta Time)
32 km (20 mi)
SW from Main Shock.
Aftershock M 3.5 39 mins later
Mar 22, 2024 16:31 (Jakarta Time)
25 km (16 mi)
NNW from Main Shock.
Aftershock M 3.7 44 mins later
Mar 22, 2024 16:37 (Jakarta Time)
13 km (8 mi)
NNW from Main Shock.
Aftershock M 3.7 1 hr later
Mar 22, 2024 17:15 (Jakarta Time)
10 km (6 mi)
NNE from Main Shock.
Aftershock M 3.7 1 hr later
Mar 22, 2024 17:16 (Jakarta Time)
12 km (7 mi)
NW from Main Shock.
Aftershock M 4.0 2 hrs later
Mar 22, 2024 17:26 (Jakarta Time)
13 km (8 mi)
NNE from Main Shock.
Aftershock M 3.6 2 hrs later
Mar 22, 2024 17:29 (Jakarta Time)
9 km (6 mi)
E from Main Shock.
Aftershock M 3.5 2 hrs later
Mar 22, 2024 17:34 (Jakarta Time)
8 km (5 mi)
WSW from Main Shock.
Aftershock M 3.6 2 hrs later
Mar 22, 2024 17:36 (Jakarta Time)
5 km (3 mi)
NNW from Main Shock.
Aftershock M 3.5 2 hrs later
Mar 22, 2024 17:40 (Jakarta Time)
14 km (9 mi)
N from Main Shock.
Aftershock M 4.0 2 hrs later
Mar 22, 2024 17:54 (Jakarta Time)
22 km (14 mi)
N from Main Shock.
Aftershock M 4.4 2 hrs later
Mar 22, 2024 17:57 (Jakarta Time)
15 km (9 mi)
NW from Main Shock.
Aftershock M 3.5 2 hrs later
Mar 22, 2024 18:17 (Jakarta Time)
6 km (4 mi)
WNW from Main Shock.
Aftershock M 3.4 3 hrs later
Mar 22, 2024 18:30 (Jakarta Time)
12 km (7 mi)
E from Main Shock.
Aftershock M 3.5 3 hrs later
Mar 22, 2024 18:40 (Jakarta Time)
20 km (12 mi)
S from Main Shock.
Aftershock M 3.7 3 hrs later
Mar 22, 2024 18:43 (Jakarta Time)
8 km (5 mi)
NNW from Main Shock.
Aftershock M 3.3 3 hrs later
Mar 22, 2024 19:15 (Jakarta Time)
13 km (8 mi)
WNW from Main Shock.
Aftershock M 3.4 3 hrs later
Mar 22, 2024 19:22 (Jakarta Time)
11 km (7 mi)
SE from Main Shock.
Aftershock M 3.6 4 hrs later
Mar 22, 2024 19:39 (Jakarta Time)
11 km (7 mi)
WNW from Main Shock.
Aftershock M 3.3 4 hrs later
Mar 22, 2024 19:58 (Jakarta Time)
9 km (5 mi)
N from Main Shock.
Aftershock M 3.4 4 hrs later
Mar 22, 2024 20:03 (Jakarta Time)
7 km (4 mi)
SSW from Main Shock.
Aftershock M 3.3 5 hrs later
Mar 22, 2024 21:19 (Jakarta Time)
25 km (16 mi)
NE from Main Shock.
Aftershock M 3.7 7 hrs later
Mar 22, 2024 22:24 (Jakarta Time)
7 km (5 mi)
NNW from Main Shock.
Aftershock M 3.4 7 hrs later
Mar 22, 2024 22:37 (Jakarta Time)
15 km (9 mi)
W from Main Shock.
Aftershock M 3.0 7 hrs later
Mar 22, 2024 22:47 (Jakarta Time)
4 km (2.7 mi)
NNW from Main Shock.
Aftershock M 4.1 7 hrs later
Mar 22, 2024 23:12 (Jakarta Time)
14 km (8 mi)
NW from Main Shock.
Aftershock M 3.0 8 hrs later
Mar 23, 2024 00:05 (Jakarta Time)
17 km (11 mi)
NNW from Main Shock.
Aftershock M 3.3 8 hrs later
Mar 23, 2024 00:12 (Jakarta Time)
0.9 km (0.6 mi)
NW from Main Shock.
Aftershock M 3.7 9 hrs later
Mar 23, 2024 00:25 (Jakarta Time)
18 km (11 mi)
NNW from Main Shock.
Aftershock M 3.3 9 hrs later
Mar 23, 2024 00:52 (Jakarta Time)
4 km (2.7 mi)
WSW from Main Shock.
Aftershock M 3.1 9 hrs later
Mar 23, 2024 00:58 (Jakarta Time)
15 km (10 mi)
N from Main Shock.
Aftershock M 3.3 10 hrs later
Mar 23, 2024 01:46 (Jakarta Time)
25 km (16 mi)
N from Main Shock.
Aftershock M 3.7 10 hrs later
Mar 23, 2024 01:58 (Jakarta Time)
18 km (11 mi)
NNE from Main Shock.
Aftershock M 3.5 10 hrs later
Mar 23, 2024 02:20 (Jakarta Time)
8 km (5 mi)
SSW from Main Shock.
Aftershock M 3.6 11 hrs later
Mar 23, 2024 03:10 (Jakarta Time)
30 km (18 mi)
NNE from Main Shock.
Aftershock M 3.6 12 hrs later
Mar 23, 2024 03:28 (Jakarta Time)
13 km (8 mi)
NW from Main Shock.
Aftershock M 4.5 13 hrs later
Mar 23, 2024 04:42 (Jakarta Time)
2.9 km (1.8 mi)
E from Main Shock.
Aftershock M 3.1 14 hrs later
Mar 23, 2024 05:37 (Jakarta Time)
6 km (4 mi)
N from Main Shock.
Aftershock M 3.8 16 hrs later
Mar 23, 2024 07:24 (Jakarta Time)
14 km (9 mi)
ENE from Main Shock.
Aftershock M 4.1 16 hrs later
Mar 23, 2024 07:49 (Jakarta Time)
47 km (29 mi)
NE from Main Shock.
Aftershock M 4.3 17 hrs later
Mar 23, 2024 08:59 (Jakarta Time)
21 km (13 mi)
N from Main Shock.
Aftershock M 3.3 21 hrs later
Mar 23, 2024 13:15 (Jakarta Time)
23 km (14 mi)
N from Main Shock.
Aftershock M 4.2 22 hrs later
Mar 23, 2024 13:28 (Jakarta Time)
24 km (15 mi)
NE from Main Shock.
Aftershock M 4.2 22 hrs later
Mar 23, 2024 14:04 (Jakarta Time)
13 km (8 mi)
NNW from Main Shock.
Aftershock M 3.6 23 hrs later
Mar 23, 2024 14:40 (Jakarta Time)
10 km (6 mi)
N from Main Shock.
Aftershock M 4.0 23 hrs later
Mar 23, 2024 15:08 (Jakarta Time)
26 km (16 mi)
NNE from Main Shock.
Aftershock M 3.8 1 day later
Mar 23, 2024 17:12 (Jakarta Time)
22 km (14 mi)
N from Main Shock.
Aftershock M 2.9 1 day later
Mar 24, 2024 01:51 (Jakarta Time)
24 km (15 mi)
NW from Main Shock.
Aftershock M 3.6 1 day later
Mar 24, 2024 03:06 (Jakarta Time)
18 km (11 mi)
NE from Main Shock.
Aftershock M 3.5 1 day later
Mar 24, 2024 03:14 (Jakarta Time)
11 km (7 mi)
NE from Main Shock.
Aftershock M 4.4 2 days later
Mar 24, 2024 06:14 (Jakarta Time)
12 km (7 mi)
NNW from Main Shock.
Aftershock M 3.9 2 days later
Mar 24, 2024 18:39 (Jakarta Time)
19 km (12 mi)
NE from Main Shock.
Aftershock M 3.7 3 days later
Mar 25, 2024 05:25 (Jakarta Time)
33 km (20 mi)
SSW from Main Shock.
Aftershock M 3.1 3 days later
Mar 25, 2024 06:04 (Jakarta Time)
59 km (37 mi)
SSE from Main Shock.
Aftershock M 3.6 3 days later
Mar 25, 2024 11:05 (Jakarta Time)
27 km (17 mi)
SSE from Main Shock.
Aftershock M 4.0 3 days later
Mar 25, 2024 15:23 (Jakarta Time)
15 km (10 mi)
N from Main Shock.
Detected MAG2.5+ earthquakes within within 100km (62 mi), that occurred in the three days before and after the main shock.

More earthquakes coming?

The risk of aftershocks decreases rapidly over time. Usually, aftershocks are at least one order of magnitude lower than a main shock.

The chance that a significant earthquake like this one is followed by an even larger earthquake is not so large. On average, scientists estimate a 94% chance that a major earthquake will not be followed by an even larger one. It is still adviced to be aware of this risk

Read: How to Stay Safe during an Earthquake (cdc.gov).

This is an unusually powerful earthquake

Earthquakes of this strength are not so common in the region, but it's not the first time. This is the strongest earthquake to hit since April 14th, 2023, when a 7 magnitude earthquake hit 40 km (25 mi) further west-southwest. That was also the heaviest earthquake to hit the region in the past 10 years.

In total, 2 earthquakes with a magnitude of 6.4 or higher have been registered within 300km (186 mi) of this epicenter in the past 10 years. This comes down to an average of once every 5 years.

Low tsunami risk

DISCLAIMER: We strongly suggest to closely monitor advice from local authorities with regards to tsunami risks. Our analysis is based on automatically collected data from external sources, and these might contain mistakes. In addition, earthquakes can cause landslides that may lead to a tsunami, or be a followed by another, potentially stonger, earthquake.

Based on early data it appears this earthquake was not strong enough (lower than MAG-6.5) to be likely to cause destructive tsunami's. However this earthquake appeared to have hit at a shallow depth under sea, so stay cautious and monitor advice from local authorities.

Tsunami Risk Factors

Factor Under Sea? MAG-6.5 or stronger? Shallow depth?
Explanation Almost all tsunami's are caused by earthquakes with their epicenter under sea or very near the sea. However stay cautious in coastal areas as earthquakes on land may cause landslides into sea, potentially still causing a local tsunami. Under MAG 6.5: Very unlikely to cause a tsunami.
MAG 6.5 to 7.5: Destructive tsunami's do occur, but are uncommon. Likely to observe small sea level changes.
MAG 7.6+: Earthquakes with these magnitudes might produce destructive tsunami's.
Most destructive tsunami's are caused by shallow earthquakes with a depth between 0 and 100km under the surface of the earth. Deeper tsunami's are unlikely to displace to ocean floor.
This Earthquake This earthquake appears to have struck under the sea. Not this earthquake.
This earthquake had a magnitude of 6.4. Earthquakes of this strength are unlikely to trigger a tsunami.
This earthquake occurred at a depth of of 9 km (6 mi). Earthquakes this shallow could trigger a tsunami.

Sources

Last updated 17/04/24 01:48 (). This article is automatically generated based on available data. We keep checking multiple sources for additional information. This article gets updated as new details on this earthquake become available.

  1. US Geographic Society (USGS): Earthquake us6000mkfz
  2. European-Mediterranean Seismological Centre (EMSC): Earthquake 20240322_0000123
  3. Geonames.org: World Cities Database
  4. Google Maps: Static API
  5. Earthquakelist.org: Historic Earthquakes Database

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