SINGAPORE – Climbing enthusiasts Rachael Tay and David Wilkins were about to dig into their breakfast in northern Taiwan when a magnitude-7.4 earthquake struck.

Ms Tay, 54, said: “The whole cottage started to shake. It was pretty scary. Things like plates and cups started rattling.”

The Singaporean husband and wife were experiencing the earthquake that rocked Taiwan on the morning of April 3.

It was the strongest to hit the island in 25 years, killing at least nine, injuring over 900 and triggering tsunami warnings for the territory, southern Japan and the Philippines.

The couple, who were on a rock-climbing trip, were staying at the coastal town of Jinguashi. The tremor, which set the cottage swaying, lasted about 10 seconds, according to Ms Tay.

The business director said: “We were looking at each other, going ‘Oh my goodness, what just happened?’, before scrambling to look for news.”

The earthquake struck at 7.58am.

Mere minutes later, the couple’s smartphones buzzed to life with an alert from the Taiwan government’s weather institution, which warned them to quickly evacuate to a shelter or higher ground as a tsunami could hit by 8.39am.

Ms Tay said: “We didn’t realise the severity of the earthquake until we followed the news and found out that this was the strongest earthquake since September 1999.”

In 1999, a magnitude-7.6 earthquake – the second deadliest in the island’s history – struck central Taiwan, killing about 2,400 people and injuring more than 10,000.

The quake with the highest death toll hit west Taiwan in 1935, claiming more than 3,000 lives.

Messages flooded in from the cottage’s host, concerned friends and loved ones, and the couple reassured them – along with their three daughters, who are in Singapore – that they were safe and were not going climbing that day.

Aftershocks continued to be felt by the pair, but they decided to stay put as utilities had not been affected, and their accommodation is 588m above sea level.

Mr Wilkins, 52, a consultant, said: “We have no clue whether the restaurants will still be open.”

Before the quake, he and his wife had been getting their meals from a nearby convenience store and seaside restaurants in the area.

The couple said they had never experienced an earthquake in their seven years of rock climbing.

They plan to continue scaling the craggy faces of Long Dong – a stretch of sea cliffs running along the north-east shore of Taiwan – without cutting short their trip, which ends on April 6.

In Taipei, tech analyst Clarrence Leo, 26, was awoken when his bed started shaking vigorously.

The Singaporean, who is on holiday with two of his friends, said: “The electricity was cut off, and we realised we should exit the building. We went down to find that many of the locals were already outside.”

Mr Leo, who was in the city’s outskirts on a day trip, said daily life in Taipei seemed unaffected, but he faced serious traffic congestion, which his taxi driver attributed to more people driving their cars due to train and bus delays.

Teacher Claire Chou, 29, who has been living in Taipei for about a year, said the impact – the biggest quake that she has felt – caused household items like wine and condiment bottles to drop and shatter on the ground.

The Singaporean, who was born in Taiwan and works remotely, said: “The quake was in the morning during peak hours, so some of my housemates couldn’t go to work on time. We were all waiting to see if work could be cancelled. Unfortunately, it’s a normal work day.”

Three of the earthquake’s fatalities had been hiking in tourist hot spot Taroko Gorge in Hualien county, according to Taiwan’s National Fire Agency.

The national park named after its landmark gorge will be closed for five days to ensure the safety of tourists.

Since the quake struck, more than 25 tremors measuring at least 4.5 in magnitude have been detected within 50km of Hualien City, according to the United States Geological Survey.

Freelance photographer Teo Choo Seng, 59, said he had just visited the tourist spot located at the epicentre of the quake with his wife and her family on March 30.

The Singaporean, who felt the earthquake in his hotel room in Taipei, said: “(I’m) feeling very blessed and hoping that everyone is safe.”

Several Singapore celebrities in Taiwan, including actress Yvonne Lim and singer Tanya Chua, took to social media to air their surprise and confirm their safety.

Mediacorp actress Hong Huifang, who is in Taipei to shoot her next drama, posted on Instagram at about 8am that she was terrified by the quake and hoped everyone was safe.

She added that the team will continue shooting there.

On Instagram, Taiwanese actress-host Kate Pang, who is married to Singaporean actor Andie Chen, shared visuals of the havoc wrought by the earthquake on the couple’s home in Taiwan, which includes a cracked computer screen.

She wrote in Chinese in a post that she had been waiting in her car at a traffic light junction when her vehicle started vibrating as though it was spoilt.

She only realised that an earthquake had struck when she noticed an old building shaking, and ran the red light to flee the area.

Ms Pang recalled: “Because I didn’t bring my mobile phone, I was very worried about my husband, who might have been home alone – whether the house had collapsed!

“After seeing that the streets looked the same, (I felt) the house should be fine.”

A Singapore Management University spokesperson confirmed that 15 of the university’s students on exchange in Taiwan are safe, adding that the school may withdraw them from programmes in the affected areas if the situation changes.

A Singapore University of Social Sciences spokeswoman said two of its students, who are on an exchange programme in Taipei, are safe.

She said the university is in touch with the students, who are due to return by the end of June.

Six students from the Singapore University of Technology and Design on exchange in Taiwan have also been confirmed to be unharmed, said the university’s chief communications officer, Ms Tammy Tan.

Chinese-language daily Lianhe Zaobao reported that the Singapore Trade Office in Taipei has urged Singaporeans in Taiwan to monitor the latest developments and to be careful of aftershocks.

Singapore’s Ministry of Foreign Affairs said there have been no reports of Singaporeans injured in the earthquake.