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A ferry in the open ocean is one of the safer places to be during a tsunami. Remember, it's not a surf-style wave, but a gradual increase in water level.

Indonesia's tsunami bulletins appear to be here:

https://rtsp.bmkg.go.id/publicbull.php

They've declared the event over - some waves were generated but nothing particularly large. Bulletin 3 for the recent quake includes wave height observations - maximum reported was 94cm; most were under 50cm.

Tsunamis are only an issue close to shore. In the ocean it's barely a mild wave.

In a boat going further out is the safest thing you can do if there's a tsunami warning.

I've seen "possible tsunami" pre-warnings, and a sea level gauge at/near Lembar showing sea level oscillations - so I would recommend keeping a close watch on some information source that's better than HN comment threads, yes.

I would upgrade the ferry and make sure to get a high quality one given all the swell in the ocean already (most of bali had 6ft+ waves yesterday) and this incident. Not worth the risk.

Lombok will have lots of higher ground at least. You really just have to be careful on and near the beach.

Easily big enough, but how deep it was generated and how the movements happened do impact the risk a lot.

Safe travels, friend.

the tsunami risk is negligible compared to the fire risk

Interesting times for the ferry indeed

Yeah, I looked this up and USGS literally has a page about this.

https://www.usgs.gov/faqs/why-are-we-having-so-many-or-so-fe...

According to long-term records (since about 1900), we expect about 16 major earthquakes in any given year. That includes 15 earthquakes in the magnitude 7 range and one earthquake magnitude 8.0 or greater. In the past 40-50 years, our records show that we have exceeded the long-term average number of major earthquakes about a dozen times.

You can see a map of ALL the 7+ here:

https://earthquake.usgs.gov/earthquakes/map/?extent=-89.0318...

The search filtering is a bit hard to find in the UI but the parameters in the URL can be modified. (We had 16+ 7.0 last year as a comparison)

Yea, feel like a lot of big ones this year, but looking it up https://en.wikipedia.org/wiki/List_of_earthquakes_in_2026 it is actually not necessarily worse than previous years.

76 quakes ranking 7.0+ so far this decade, including 10 this year.

https://en.wikipedia.org/wiki/List_of_earthquakes_2021%E2%80...

Sure feels like it in my corner of the Bay Area, since we had a prolonged earthquake swarm earlier this year, even hitting a record number of earthquakes per day or something like that.

Earthquakes can occur in swarms[1] (distinct from aftershocks), with many of a similar size (i.e. Not a big quake followed by smaller ones) occurring in a small area over "relatively short" periods of time (i.e. days, weeks, or years).

The USGS map shows the 7.7 quake being followed by about 19 other smaller quakes near or in Indonesia within just a few hours. These are probably aftershocks.

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[1]https://en.wikipedia.org/wiki/Earthquake_swarm

HN highlighting a lot this year, is all

I was wondering the same: https://www.morageology.com/earthquake_year.php

It does feel like a lot

Looks like it was a strike-slip fault, so a much lower tsunami risk compared to a subduction / dip-slip fault.