Earthquake hits Eritrea, Ethiopia

Daniel Berhane in EritreaEthiopiaNews Monday, June 13, 2011 @ 4:19 am

Reports from the United States Geological Survey (USGS) indicated that at least 14 light to moderate earthquakes took place in the Ethiopian Eritrean border area starting on Sunday evening, (Ethiopian time).

The first quake that took place around 6 PM was 5.1 magnitude and the strongest had been 5.7-magnitude, while the most of the rest were between 4.5-4.8 magnitude on Richter scale – a measurement of earthquakes.

The United States Geological Survey(USGS) said that there was a possibility of damage and casualties as a result of the earthquakes, according to BNO News. Moreover, it estimated that some 18,000 people may have felt moderate to strong shaking as a result of the 5.7-magnitude earthquakes, while 3.6 million others were estimated to have perceived light shaking.

BNO News recalled that on July 20, 1884, a strong 6.2-magnitude earthquake struck offshore Massawa, Eritrea. Scores of homes in the region were destroyed but there were no confirmed reports of fatalities.

Though the two news outlets that reported so far (here and here) claimed the epicenter of all the earthquakes had been Eritrea. A reading of the USGS preliminary reports suggests at least two of the fourteen earthquakes took place within Ethiopia.

It is expected that the Ethiopian Geological Survey will provide information on the event on Monday Morning, Ethiopian time.

You may read below the 14 Preliminary Earthquake Reports posted by the U.S. Geological Survey, National Earthquake Information Center: so far.

Notice that the reports provide the time both in UTC(GMT) and Ethiopian time(as time as ‘at epicenter’)

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Preliminary Earthquake Reports – by the U.S. Geological Survey

Earthquake Details

· This event has been reviewed by a seismologist.

Magnitude	4.5
Date-Time	· Sunday, June 12, 2011 at 21:37:14 UTC · Monday, June 13, 2011 at 12:37:14 AM at epicenter · Time of Earthquake in other Time Zones
Location	13.234°N, 41.806°E
Depth	15 km (9.3 miles)
Region	ERITREA – ETHIOPIA REGION
Distances	103 km (64 miles) WNW of Assab, Eritrea 212 km (131 miles) SW of Al Hudaydah, Yemen 232 km (144 miles) NW of DJIBOUTI, Djibouti 388 km (241 miles) SE of ASMARA, Eritrea
Location Uncertainty	horizontal +/- 31.6 km (19.6 miles); depth +/- 5.2 km (3.2 miles)
Parameters	NST= 26, Nph= 29, Dmin=316.1 km, Rmss=0.8 sec, Gp=198°, M-type=body wave magnitude (Mb), Version=3
Source	· USGS NEIC (WDCS-D)
Event ID	usc00045y8

Earthquake Details

· This event has been reviewed by a seismologist.

Magnitude	5.7
Date-Time	· Sunday, June 12, 2011 at 21:03:23 UTC · Monday, June 13, 2011 at 12:03:23 AM at epicenter · Time of Earthquake in other Time Zones
Location	13.530°N, 41.625°E
Depth	9.9 km (6.2 miles)
Region	ERITREA – ETHIOPIA REGION
Distances	133 km (82 miles) WNW of Assab, Eritrea 200 km (124 miles) SW of Al Hudaydah, Yemen 233 km (144 miles) E of Mekele, Ethiopia 353 km (219 miles) SE of ASMARA, Eritrea
Location Uncertainty	horizontal +/- 17.1 km (10.6 miles); depth +/- 2.8 km (1.7 miles)
Parameters	NST=113, Nph=114, Dmin=320.6 km, Rmss=0.88 sec, Gp= 72°, M-type=regional moment magnitude (Mw), Version=6
Source	· USGS NEIC (WDCS-D)
Event ID	usc00045xc

Earthquake Details

· This event has been reviewed by a seismologist.

Magnitude	5.7
Date-Time	· Sunday, June 12, 2011 at 20:32:40 UTC · Sunday, June 12, 2011 at 11:32:40 PM at epicenter · Time of Earthquake in other Time Zones
Location	13.460°N, 41.688°E
Depth	10.1 km (6.3 miles)
Region	ERITREA – ETHIOPIA REGION
Distances	123 km (76 miles) WNW of Assab, Eritrea 202 km (125 miles) SW of Al Hudaydah, Yemen 239 km (148 miles) E of Mekele, Ethiopia 364 km (226 miles) SE of ASMARA, Eritrea
Location Uncertainty	horizontal +/- 16.8 km (10.4 miles); depth +/- 2.1 km (1.3 miles)
Parameters	NST=158, Nph=158, Dmin=317.3 km, Rmss=1.04 sec, Gp= 58°, M-type=teleseismic moment magnitude (Mw), Version=8
Source	· USGS NEIC (WDCS-D)
Event ID	usc00045vg

Earthquake Details

· This event has been reviewed by a seismologist.

Magnitude	4.8
Date-Time	· Sunday, June 12, 2011 at 19:44:16 UTC · Sunday, June 12, 2011 at 10:44:16 PM at epicenter · Time of Earthquake in other Time Zones
Location	13.369°N, 41.644°E
Depth	9.9 km (6.2 miles)
Region	ERITREA – ETHIOPIA REGION
Distances	125 km (77 miles) WNW of Assab, Eritrea 212 km (131 miles) SW of Al Hudaydah, Yemen 234 km (145 miles) E of Mekele, Ethiopia 364 km (226 miles) SE of ASMARA, Eritrea
Location Uncertainty	horizontal +/- 19.7 km (12.2 miles); depth +/- 2.9 km (1.8 miles)
Parameters	NST= 48, Nph= 48, Dmin=325.1 km, Rmss=0.82 sec, Gp=198°, M-type=body wave magnitude (Mb), Version=5
Source	· USGS NEIC (WDCS-D)
Event ID	usc00045rx

Earthquake Details

· This event has been reviewed by a seismologist.

Magnitude	4.7
Date-Time	· Sunday, June 12, 2011 at 19:37:42 UTC · Sunday, June 12, 2011 at 10:37:42 PM at epicenter · Time of Earthquake in other Time Zones
Location	13.316°N, 41.611°E
Depth	10.1 km (6.3 miles)
Region	ERITREA – ETHIOPIA REGION
Distances	127 km (78 miles) WNW of Assab, Eritrea 218 km (135 miles) SW of Al Hudaydah, Yemen 232 km (144 miles) E of Mekele, Ethiopia 569 km (353 miles) NNE of ADDIS ABABA, Ethiopia
Location Uncertainty	horizontal +/- 27.2 km (16.9 miles); depth +/- 2.8 km (1.7 miles)
Parameters	NST= 27, Nph= 27, Dmin=>999 km, Rmss=0.64 sec, Gp=194°, M-type=body wave magnitude (Mb), Version=4
Source	· USGS NEIC (WDCS-D)
Event ID	usc00045r8

Earthquake Details

· This event has been reviewed by a seismologist.

Magnitude	5.0
Date-Time	· Sunday, June 12, 2011 at 19:21:45 UTC · Sunday, June 12, 2011 at 10:21:45 PM at epicenter · Time of Earthquake in other Time Zones
Location	12.476°N, 41.748°E
Depth	10 km (6.2 miles)
Region	ETHIOPIA
Distances	122 km (75 miles) WSW of Assab, Eritrea 180 km (111 miles) WNW of DJIBOUTI, Djibouti 271 km (168 miles) ESE of Mekele, Ethiopia 504 km (313 miles) NE of ADDIS ABABA, Ethiopia
Location Uncertainty	horizontal +/- 27.7 km (17.2 miles); depth +/- 2.9 km (1.8 miles)
Parameters	NST= 61, Nph= 62, Dmin=>999 km, Rmss=1.14 sec, Gp=266°, M-type=body wave magnitude (Mb), Version=7
Source	· USGS NEIC (WDCS-D)
Event ID	usc00045p7

Earthquake Details

· This event has been reviewed by a seismologist.

Magnitude	4.5
Date-Time	· Sunday, June 12, 2011 at 18:01:19 UTC · Sunday, June 12, 2011 at 09:01:19 PM at epicenter · Time of Earthquake in other Time Zones
Location	12.817°N, 41.933°E
Depth	10.1 km (6.3 miles)
Region	ETHIOPIA
Distances	90 km (55 miles) WSW of Assab, Eritrea 189 km (117 miles) NW of DJIBOUTI, Djibouti 242 km (150 miles) WSW of Taizz, Yemen 545 km (338 miles) NE of ADDIS ABABA, Ethiopia
Location Uncertainty	horizontal +/- 22.9 km (14.2 miles); depth +/- 2.9 km (1.8 miles)
Parameters	NST= 23, Nph= 23, Dmin=329.5 km, Rmss=1.02 sec, Gp=180°, M-type=body wave magnitude (Mb), Version=4
Source	· USGS NEIC (WDCS-D)
Event ID	usc00045kq

Earthquake Details

· This event has been reviewed by a seismologist.

Magnitude	4.7
Date-Time	· Sunday, June 12, 2011 at 17:47:20 UTC · Sunday, June 12, 2011 at 08:47:20 PM at epicenter · Time of Earthquake in other Time Zones
Location	13.538°N, 41.588°E
Depth	10 km (6.2 miles)
Region	ERITREA – ETHIOPIA REGION
Distances	137 km (85 miles) WNW of Assab, Eritrea 202 km (125 miles) SW of Al Hudaydah, Yemen 229 km (142 miles) E of Mekele, Ethiopia 348 km (216 miles) SE of ASMARA, Eritrea
Location Uncertainty	horizontal +/- 28.3 km (17.6 miles); depth +/- 2.9 km (1.8 miles)
Parameters	NST= 23, Nph= 23, Dmin=323.9 km, Rmss=0.69 sec, Gp=130°, M-type=body wave magnitude (Mb), Version=2
Source	· USGS NEIC (WDCS-D)
Event ID	usc00045kf

Earthquake Details

· This event has been reviewed by a seismologist.

Magnitude	4.8
Date-Time	· Sunday, June 12, 2011 at 17:18:09 UTC · Sunday, June 12, 2011 at 08:18:09 PM at epicenter · Time of Earthquake in other Time Zones
Location	13.381°N, 41.764°E
Depth	9.9 km (6.2 miles)
Region	ERITREA – ETHIOPIA REGION
Distances	113 km (70 miles) WNW of Assab, Eritrea 202 km (125 miles) SW of Al Hudaydah, Yemen 246 km (152 miles) W of Taizz, Yemen 374 km (232 miles) SE of ASMARA, Eritrea
Location Uncertainty	horizontal +/- 17.8 km (11.1 miles); depth +/- 2.7 km (1.7 miles)
Parameters	NST= 64, Nph= 64, Dmin=312.8 km, Rmss=0.73 sec, Gp=101°, M-type=body wave magnitude (Mb), Version=5
Source	· USGS NEIC (WDCS-D)
Event ID	usc00045iy

Earthquake Details

· This event has been reviewed by a seismologist.

Magnitude	4.3
Date-Time	· Sunday, June 12, 2011 at 16:33:11 UTC · Sunday, June 12, 2011 at 07:33:11 PM at epicenter · Time of Earthquake in other Time Zones
Location	13.507°N, 41.722°E
Depth	10 km (6.2 miles) set by location program
Region	ERITREA – ETHIOPIA REGION
Distances	123 km (76 miles) WNW of Assab, Eritrea 194 km (120 miles) SW of Al Hudaydah, Yemen 243 km (150 miles) E of Mekele, Ethiopia 362 km (224 miles) ESE of ASMARA, Eritrea
Location Uncertainty	horizontal +/- 29.3 km (18.2 miles); depth fixed by location program
Parameters	NST= 12, Nph= 12, Dmin=311.6 km, Rmss=0.37 sec, Gp=205°, M-type=body wave magnitude (Mb), Version=4
Source	· USGS NEIC (WDCS-D)
Event ID	us2011mbbx

Earthquake Details

· This event has been reviewed by a seismologist.

Magnitude	4.8
Date-Time	· Sunday, June 12, 2011 at 16:24:44 UTC · Sunday, June 12, 2011 at 07:24:44 PM at epicenter · Time of Earthquake in other Time Zones
Location	13.436°N, 41.682°E
Depth	10 km (6.2 miles) set by location program
Region	ERITREA – ETHIOPIA REGION
Distances	124 km (77 miles) WNW of Assab, Eritrea 203 km (126 miles) SW of Al Hudaydah, Yemen 238 km (147 miles) E of Mekele, Ethiopia 363 km (225 miles) SE of ASMARA, Eritrea
Location Uncertainty	horizontal +/- 8.9 km (5.5 miles); depth fixed by location program
Parameters	NST= 51, Nph= 51, Dmin=318.6 km, Rmss=0.81 sec, Gp=119°, M-type=body wave magnitude (Mb), Version=5
Source	· USGS NEIC (WDCS-D)
Event ID	us2011mbbv

Earthquake Details

· This event has been reviewed by a seismologist.

Magnitude	4.7
Date-Time	· Sunday, June 12, 2011 at 16:12:02 UTC · Sunday, June 12, 2011 at 07:12:02 PM at epicenter · Time of Earthquake in other Time Zones
Location	13.397°N, 41.734°E
Depth	10 km (6.2 miles) set by location program
Region	ERITREA – ETHIOPIA REGION
Distances	117 km (72 miles) WNW of Assab, Eritrea 203 km (126 miles) SW of Al Hudaydah, Yemen 244 km (151 miles) E of Mekele, Ethiopia 370 km (229 miles) SE of ASMARA, Eritrea
Location Uncertainty	horizontal +/- 9.4 km (5.8 miles); depth fixed by location program
Parameters	NST= 43, Nph= 43, Dmin=315.3 km, Rmss=0.82 sec, Gp=119°, M-type=body wave magnitude (Mb), Version=5
Source	· USGS NEIC (WDCS-D)
Event ID	us2011mbbp

Earthquake Details

· This event has been reviewed by a seismologist.

Magnitude	4.5
Date-Time	· Sunday, June 12, 2011 at 16:09:30 UTC · Sunday, June 12, 2011 at 07:09:30 PM at epicenter · Time of Earthquake in other Time Zones
Location	13.443°N, 41.696°E
Depth	2.9 km (1.8 miles) (poorly constrained)
Region	ERITREA – ETHIOPIA REGION
Distances	122 km (75 miles) WNW of Assab, Eritrea 202 km (125 miles) SW of Al Hudaydah, Yemen 240 km (149 miles) E of Mekele, Ethiopia 365 km (226 miles) SE of ASMARA, Eritrea
Location Uncertainty	horizontal +/- 12.1 km (7.5 miles); depth +/- 51.6 km (32.1 miles)
Parameters	NST= 26, Nph= 26, Dmin=317 km, Rmss=0.8 sec, Gp=119°, M-type=body wave magnitude (Mb), Version=4
Source	· USGS NEIC (WDCS-D)
Event ID	us2011mbbm

Earthquake Details

· This event has been reviewed by a seismologist.

Magnitude	5.1
Date-Time	· Sunday, June 12, 2011 at 15:37:05 UTC · Sunday, June 12, 2011 at 06:37:05 PM at epicenter · Time of Earthquake in other Time Zones
Location	13.458°N, 41.684°E
Depth	10 km (6.2 miles) set by location program
Region	ERITREA – ETHIOPIA REGION
Distances	128 km (79 miles) WNW of Assab, Eritrea 193 km (119 miles) SW of Al Hudaydah, Yemen 239 km (148 miles) E of Mekele, Ethiopia 357 km (221 miles) ESE of ASMARA, Eritrea
Location Uncertainty	horizontal +/- 5.7 km (3.5 miles); depth fixed by location program
Parameters	NST= 95, Nph= 95, Dmin=317.5 km, Rmss=0.78 sec, Gp= 79°, M-type=body wave magnitude (Mb), Version=7
Source	· USGS NEIC (WDCS-D)
Event ID	usc00045f9

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