Adelaide Earthquake: How to Check Reports and What to Do After a Tremor

Geoscience Australia reported a magnitude 4.9 earthquake offshore South Australia at 7:48 a.m. on Tuesday, October 27, 2026. For Adelaide, that was Australian Central Daylight Time (ACDT, UTC+10:30), or 9:18 p.m. UTC on Monday, October 26. The event was offshore, not centered in metropolitan Adelaide. Its location and magnitude may be updated as seismologists review more data, so use the official event record for the latest figures.

After a tremor, people often have two different questions: “Was that an earthquake?” and “Is it safe where I am?” Different sources answer those questions. A seismic catalog can confirm and characterize an event; local emergency services provide safety information; social posts can offer quick clues but may be incomplete or mistaken.

Where to check earthquake reports

Start with Geoscience Australia’s event record. It lists the event’s origin time, location, magnitude, depth, and public felt reports. Geoscience Australia is the Australian Government’s official source for earthquake information. Its earthquake information page says earthquake estimates can change as new readings are analyzed.

Check the event time before comparing posts. The record may show both UTC and the time at the epicenter, and an overnight UTC date can differ from the calendar date in South Australia. The reported 7:48 a.m. on October 27 in Adelaide converts to 21:18 UTC on October 26 because South Australia observes daylight saving in October. SafeWork SA’s daylight-saving guidance explains the seasonal clock change; its standard time is UTC+09:30, with daylight saving adding one hour.

For a broader picture of where shaking was noticed, review Geoscience Australia’s FeltGrid and public felt reports. A FeltGrid combines what people report experiencing; it helps show the spread and intensity of felt shaking. It is not an engineering inspection or an official tally of damaged buildings. If you personally felt the tremor, submit a felt report to Geoscience Australia once you are safe. Those reports add useful local observations to the earthquake record.

For practical advice, use the South Australian Government’s earthquake safety guide and official emergency updates. This source choice depends on what you need: Geoscience Australia is the right starting point for “what happened,” while emergency agencies are the right source for “what should I do here?”

What to do after the shaking stops

1. Expect aftershocks and protect yourself again

Aftershocks can follow an earthquake. If shaking starts again, drop to the ground, take cover under a sturdy table or desk if one is nearby, and hold on until the movement stops. If there is no cover, protect your head and neck beside an interior wall, away from windows and objects that could fall. During shaking, do not rush outside or use an elevator.

2. Check people and nearby hazards

Look for injuries and immediate dangers without entering an unsafe area. Apply direct pressure to bleeding. Do not move someone with a serious injury unless staying there puts them in immediate danger. Call Triple Zero (000) for a life-threatening emergency. If you are outdoors, watch for cracked walls, unstable chimneys, broken glass, and fallen power lines.

3. Leave a severely damaged building

If the building has serious visible damage, get everyone out as soon as it is safe and move away from exterior walls, chimneys, and anything that could fall. Do not reenter a badly damaged structure to collect belongings. If you smell gas or hear hissing, get outside, open windows only if you can do so safely, and avoid switches or electrical appliances that could create a spark. South Australia’s guidance says to turn off gas at the meter or bottle if possible and to have a qualified gas fitter or electrician repair faults before services are turned back on.

At a beach, move to higher ground once the shaking stops, following South Australian Government advice. Do not assume a tsunami warning exists simply because an earthquake occurred offshore; check official Bureau of Meteorology warnings and follow any specific instructions issued for your area.

4. Check updates before traveling or returning

Power, water, phone service, roads, or bridges may be affected. Check official South Australian emergency information and local ABC radio before driving or returning to a building you left. Avoid unnecessary trips through damaged areas, and keep calls available for urgent needs; text messages can use less network capacity when service is congested.

Magnitude is not a damage report

A magnitude number describes the size of an earthquake at its source. It does not tell you exactly how strongly it shook every street or whether a particular home is safe. Distance from the epicenter, depth, ground conditions, and a building’s condition all affect what people experience. One resident may feel a short jolt while someone in another structure notices more movement.

Use the official event page to verify the earthquake, the FeltGrid to understand reported shaking, and emergency agencies for local action. If you feel an aftershock, repeat Drop, Cover, and Hold. If you see serious damage or someone is in immediate danger, prioritize safety and call 000 rather than waiting for online reports.