Earthquake information

Summary Maps Testimonies Medias Scientific data

Author
Date and time	2011-08-20 01:25:00.6 UTC
Latitude	-22.547
Longitude	-174.787
Depth	10
Magnitude	5.5 Mw
Region	TONGA REGION
Latest update	2016-04-19 07:23:15.3 UTC

rms	1.66 s
N° phases used for the localisation	190
N° stations used for the localisation	190
Gap	108.0 °
95% confidence ellipse
semi major	11.6
semi minor	6.2
Azimuth	144 °
Location Type	manual

Download data for this event

Note: links can take up to 20 minutes from the earthquake to become available

code	Distance°	EvAz	A/M	Phase	Pick time	Residual	T	Reporting network
RAO	7.250	202	M	Pn	2011-08-20 01:26:45.1	-1.4	T	NEIR
MSVF	8.260	304	M	Pn	2011-08-20 01:27:01.4	0.9	T	NEIR
DZM	17.380	268	A	P	2011-08-20 01:29:08.0	3.4	T	GFZ
BKZ	18.160	202	M	Pn	2011-08-20 01:29:10.7	-2.2	T	NEIR
THZ	21.770	206	M	P	2011-08-20 01:29:50.7	-1.8	T	NEIR
KHZ	22.080	204	M	P	2011-08-20 01:29:53.8	-1.9	T	NEIR
LTZ	22.880	205	M	P	2011-08-20 01:30:01.7	-2.6	T	NEIR
OXZ	23.430	205	M	P	2011-08-20 01:30:10.1	0.1	T	NEIR
RPZ	24.150	206	M	P	2011-08-20 01:30:15.5	-1.3	T	NEIR
FOZ	24.590	208	M	P	2011-08-20 01:30:17.5	-3.2	T	NEIR
LBZ	25.050	206	M	P	2011-08-20 01:30:26.1	1.1	T	NEIR
ARMA	30.980	248	M	P	2011-08-20 01:31:21.5	3.4	T	MAD
EIDS	31.270	258	M	P	2011-08-20 01:31:20.5	0	T	NEIR
CAN	33.970	240	M	P	2011-08-20 01:31:42.1	-2.1	T	NEIR
CMSA	36.160	247	A	P	2011-08-20 01:32:03.9	0.8	T	GFZ
CTAO	36.310	266	M	P	2011-08-20 01:32:03.7	-0.7	T	NEIR
CTA	36.310	266	M	P	2011-08-20 01:32:04.0	-0.4	T	MAD
TOO	37.210	237	A	P	2011-08-20 01:32:16.0	3.9	T	GFZ
QLP	37.370	255	A	P	2011-08-20 01:32:13.1	-0.3	T	GFZ
MTSU	38.510	269	A	P	2011-08-20 01:32:23.1	0	T	GFZ
PMG	38.720	284	M	P	2011-08-20 01:32:25.7	0.9	T	MAD
STKA	39.670	247	M	P	2011-08-20 01:32:33.8	1.1	T	NEIR
ARPS	39.930	239	A	P	2011-08-20 01:32:37.9	3	T	GFZ
COEN	40.710	275	M	P	2011-08-20 01:32:39.8	-1.6	T	NEIR
QIS	42.340	264	A	P	2011-08-20 01:32:56.1	1.3	T	GFZ
BBOO	44.380	246	M	P	2011-08-20 01:33:08.8	-2.4	T	NEIR
AS01	46.950	258	M	P	2011-08-20 01:33:29.7	-1.9	T	NEIR
AS31	47.000	258	M	P	2011-08-20 01:33:31.2	-0.7	T	NEIR
WB2	47.300	263	M	P	2011-08-20 01:33:32.2	-2	T	NEIR
WRAB	47.300	263	M	P	2011-08-20 01:33:32.8	-1.4	T	NEIR
GENI	47.960	288	A	P	2011-08-20 01:33:40.4	1.1	T	GFZ
FORT	51.270	248	M	P	2011-08-20 01:34:03.7	-0.9	T	NEIR
GUMO	53.410	308	M	P	2011-08-20 01:34:20.6	0.2	T	MAD
KNRA	53.520	267	M	P	2011-08-20 01:34:22.0	0.7	T	MAD
FAKI	54.870	283	M	P	2011-08-20 01:34:33.0	1.9	T	MAD
SOEI	59.550	272	M	P	2011-08-20 01:35:06.5	2.1	T	MAD
MBWA	60.340	258	M	P	2011-08-20 01:35:09.6	0	T	MAD
MMRI	61.820	272	M	P	2011-08-20 01:35:21.2	1.5	T	MAD
LUWI	64.240	280	M	P	2011-08-20 01:35:38.0	2.2	T	MAD
KAPI	65.440	275	M	P	2011-08-20 01:35:43.5	-0.1	T	MAD
QSPA	67.530	180	M	P	2011-08-20 01:35:59.0	1.6	T	NEIR
JAGI	69.350	269	M	P	2011-08-20 01:36:08.9	0.5	T	MAD
KKM	73.160	284	M	P	2011-08-20 01:36:31.0	-0.5	T	NEIR
MAJO	73.640	322	M	P	2011-08-20 01:36:33.9	-0.4	T	NEIR
MJB9	73.640	322	M	P	2011-08-20 01:36:34.0	-0.3	T	NEIR
JOW	73.770	309	M	P	2011-08-20 01:36:34.2	-0.8	T	NEIR
CISI	75.540	268	M	P	2011-08-20 01:36:48.2	2.9	T	MAD
KUR	75.550	334	M	P	2011-08-20 01:36:44.9	-0.4	T	GSRC
JNU	75.820	315	M	P	2011-08-20 01:36:47.7	0.8	T	MAD
KSM	76.650	277	M	P	2011-08-20 01:36:51.3	-0.3	T	NEIR
ASAJ	76.960	330	M	P	2011-08-20 01:36:52.8	-0.6	T	NEIR
YULB	77.120	302	M	P	2011-08-20 01:36:52.6	-1.6	T	NEIR
NACB	77.290	303	M	P	2011-08-20 01:36:54.4	-0.8	T	NEIR
SKR	77.300	342	M	P	2011-08-20 01:36:53.6	-1.6	T	GSRC
TPUB	77.590	302	M	P	2011-08-20 01:36:54.0	-2.9	T	NEIR
TATO	77.800	304	M	P	2011-08-20 01:36:57.9	-0.1	T	MAD
PET	78.710	344	A	P	2011-08-20 01:37:03.1	0	T	MAD
PFO	78.750	46	M	P	2011-08-20 01:37:05.5	2	T	NEIR
CMB	78.990	41	M	P	2011-08-20 01:37:05.3	0.6	T	NEIR
PEA0	79.040	344	M	P	2011-08-20 01:37:02.0	-2.9	T	NEIR
PEA0B	79.040	344	M	P	2011-08-20 01:37:02.6	-2.3	T	NEIR
YSS	79.080	332	M	P	2011-08-20 01:37:05.5	0.4	T	NEIR
AFDM	79.230	40	M	P	2011-08-20 01:37:07.2	1.2	T	NEIR
ORV	79.310	39	M	P	2011-08-20 01:37:08.0	1.6	T	NEIR
WDC	79.390	38	M	P	2011-08-20 01:37:08.3	1.5	T	NEIR
GSC	79.540	45	M	P	2011-08-20 01:37:07.6	-0.1	T	NEIR
WAKR	79.860	41	M	P	2011-08-20 01:37:10.7	1.1	T	NEIR
PNTR	80.130	40	M	P	2011-08-20 01:37:12.1	0.9	T	NEIR
TVH3	80.140	41	M	P	2011-08-20 01:37:12.0	0.8	T	NEIR
TVH2	80.200	41	M	P	2011-08-20 01:37:12.4	0.9	T	NEIR
TVH1	80.240	41	M	P	2011-08-20 01:37:12.4	0.5	T	NEIR
YERR	80.280	41	M	P	2011-08-20 01:37:12.1	0.2	T	NEIR
KS15	80.420	317	M	P	2011-08-20 01:37:13.6	1.2	T	NEIR
KS01	80.430	317	M	P	2011-08-20 01:37:11.3	-1.2	T	NEIR
HUMO	80.520	36	M	P	2011-08-20 01:37:12.5	-0.5	T	NEIR
MAW	80.640	199	M	P	2011-08-20 01:37:14.8	1.3	T	NEIR
PAHR	80.660	40	M	P	2011-08-20 01:37:14.2	0.3	T	NEIR
TPNV	80.890	44	M	P	2011-08-20 01:37:15.6	0.5	T	NEIR
INCN	81.230	317	M	P	2011-08-20 01:37:17.9	1.1	T	NEIR
Y14A	81.280	48	M	P	2011-08-20 01:37:15.8	-1.3	T	NEIR
SHPR	81.330	45	M	P	2011-08-20 01:37:17.0	-0.5	T	NEIR
W13A	81.350	46	M	P	2011-08-20 01:37:19.7	2.1	T	NEIR
MOD	81.530	38	M	P	2011-08-20 01:37:18.8	0.3	T	NEIR
VLA	81.680	324	M	P	2011-08-20 01:37:19.5	0.4	T	GSRC
K05A	81.740	37	M	P	2011-08-20 01:37:19.1	-0.6	T	NEIR
TUC	81.930	50	M	P	2011-08-20 01:37:20.8	0.3	T	NEIR
BMN	82.400	41	M	P	2011-08-20 01:37:22.3	-0.8	T	NEIR
X16A	82.620	48	M	P	2011-08-20 01:37:24.4	0.1	T	NEIR
WVOR	82.820	38	M	P	2011-08-20 01:37:24.3	-1	T	NEIR
LCMT	82.870	45	M	P	2011-08-20 01:37:26.2	0.7	T	NEIR
E03A	82.890	33	M	P	2011-08-20 01:37:25.1	-0.3	T	NEIR
CCUT	83.100	45	M	P	2011-08-20 01:37:27.7	0.9	T	NEIR
KNB	83.150	45	M	P	2011-08-20 01:37:27.4	0.4	T	NEIR
U15A	83.170	46	M	P	2011-08-20 01:37:26.9	-0.4	T	NEIR
WUAZ	83.280	47	M	P	2011-08-20 01:37:28.5	0.8	T	NEIR
SZCU	83.310	45	M	P	2011-08-20 01:37:28.7	0.8	T	NEIR
NLWA	83.320	32	M	P	2011-08-20 01:37:29.1	1.4	T	NEIR
X18A	83.720	49	M	P	2011-08-20 01:37:29.9	-0.1	T	NEIR
PKCU	83.730	45	M	P	2011-08-20 01:37:33.2	3	T	NEIR
LON	83.920	34	M	P	2011-08-20 01:37:28.8	-2	T	NEIR
D05A	84.120	33	M	P	2011-08-20 01:37:33.2	1.4	T	NEIR
MTPU	84.150	45	M	P	2011-08-20 01:37:31.7	-0.7	T	NEIR
MSU	84.420	44	M	P	2011-08-20 01:37:33.5	-0.1	T	NEIR
TLIG	84.510	69	M	P	2011-08-20 01:37:34.5	0.6	T	NEIR
HAWA	84.860	35	M	P	2011-08-20 01:37:35.4	-0.1	T	NEIR
DUG	84.970	43	M	P	2011-08-20 01:37:37.8	1.5	T	NEIR
MFID	85.050	39	M	P	2011-08-20 01:37:35.5	-1.1	T	NEIR
BMO	85.090	37	M	P	2011-08-20 01:37:35.1	-1.7	T	NEIR
NLU	85.300	43	M	P	2011-08-20 01:37:39.9	1.9	T	NEIR
SPU	85.430	11	M	P	2011-08-20 01:37:37.5	-1	T	NEIR
TMUT	85.480	44	M	P	2011-08-20 01:37:38.9	-0.1	T	NEIR
MNTX	85.530	53	M	P	2011-08-20 01:37:38.8	-0.1	T	NEIR
D08A	85.610	35	M	P	2011-08-20 01:37:38.5	-0.8	T	NEIR
LAZ	85.620	50	M	P	2011-08-20 01:37:40.0	0.4	T	NEIR
TX31	85.680	56	M	P	2011-08-20 01:37:39.3	-0.4	T	NEIR
E09A	85.680	35	M	P	2011-08-20 01:37:40.0	0.4	T	NEIR
KLR	85.820	328	M	P	2011-08-20 01:37:40.5	0.2	T	GSRC
SRU	85.820	45	M	P	2011-08-20 01:37:40.8	0.2	T	NEIR
F10A	85.830	36	M	P	2011-08-20 01:37:40.0	-0.5	T	NEIR
SPUT	85.830	42	M	P	2011-08-20 01:37:41.3	0.7	T	NEIR
BNM	85.860	51	M	P	2011-08-20 01:37:41.0	0.2	T	NEIR
SNAA	85.870	178	M	P	2011-08-20 01:37:40.7	0.1	T	NEIR
HVU	85.900	42	M	P	2011-08-20 01:37:40.6	-0.3	T	NEIR
LPM	85.940	50	M	P	2011-08-20 01:37:41.7	0.6	T	NEIR
HLID	85.960	39	M	P	2011-08-20 01:37:41.8	0.5	T	NEIR
B08A	86.240	33	M	P	2011-08-20 01:37:40.7	-1.7	T	NEIR
IPM	86.340	276	M	P	2011-08-20 01:37:43.6	0.7	T	NEIR
ANMO	86.380	50	M	P	2011-08-20 01:37:42.1	-1.2	T	NEIR
TT01	86.450	9	M	P	2011-08-20 01:37:41.1	-2.3	T	NEIR
TTA	86.480	9	M	P	2011-08-20 01:37:41.3	-2.4	T	NEIR
LLLB	86.480	31	M	P	2011-08-20 01:37:43.6	0	T	NEIR
MA2	86.570	343	M	P	2011-08-20 01:37:41.1	-2.9	T	GSRC
BMRM	86.730	14	M	P	2011-08-20 01:37:43.5	-1.4	T	NEIR
SCM	86.920	13	M	P	2011-08-20 01:37:45.0	-0.9	T	NEIR
KULM	87.000	277	M	P	2011-08-20 01:37:46.6	0.5	T	NEIR
CAST	87.520	10	M	P	2011-08-20 01:37:45.9	-2.8	T	NEIR
MCMT	87.610	39	M	P	2011-08-20 01:37:50.3	0.9	T	NEIR
KTH	87.840	10	M	P	2011-08-20 01:37:48.0	-2.3	T	NEIR
SKAG	87.890	19	M	P	2011-08-20 01:37:53.0	2.6	T	NEIR
FXWY	88.020	41	M	P	2011-08-20 01:37:52.8	1.5	T	NEIR
RND	88.070	11	M	P	2011-08-20 01:37:48.6	-2.8	T	NEIR
SMCO	88.200	46	M	P	2011-08-20 01:37:52.8	0.4	T	NEIR
GSI	88.310	272	M	P	2011-08-20 01:37:53.9	1.5	T	MAD
MCK	88.350	11	M	P	2011-08-20 01:37:50.1	-2.5	T	NEIR
BW06	88.430	42	M	P	2011-08-20 01:37:53.0	-0.3	T	NEIR
PD31	88.430	42	M	P	2011-08-20 01:37:54.0	0.7	T	NEIR
SDCO	88.460	48	M	P	2011-08-20 01:37:53.3	-0.2	T	NEIR
CHMT	88.590	37	M	P	2011-08-20 01:37:56.4	2.4	T	NEIR
BOZ	88.790	39	M	P	2011-08-20 01:37:54.2	-0.7	T	NEIR
WRH	89.180	11	M	P	2011-08-20 01:37:54.9	-1.6	T	NEIR
DOT	89.230	13	M	P	2011-08-20 01:37:55.5	-1.3	T	NEIR
CCB	89.390	11	M	P	2011-08-20 01:37:55.5	-2	T	NEIR
WALA	89.490	35	M	P	2011-08-20 01:37:58.4	0.3	T	NEIR
COLA	89.590	11	M	P	2011-08-20 01:37:56.9	-1.5	T	NEIR
ILB	89.670	12	M	P	2011-08-20 01:37:57.1	-1.7	T	NEIR
DAWY	90.630	15	M	P	2011-08-20 01:38:01.2	-2.2	T	NEIR
EGAK	90.840	14	M	P	2011-08-20 01:38:03.2	-1	T	NEIR
COLD	91.370	9	M	P	2011-08-20 01:38:06.1	-0.6	T	NEIR
EDM	92.220	32	M	P	2011-08-20 01:38:10.8	0.1	T	NEIR
RSSD	92.580	43	M	P	2011-08-20 01:38:14.3	1.7	T	NEIR
CM01	93.580	288	M	P	2011-08-20 01:38:18.2	1.3	T	NEIR
CHTO	93.740	289	M	P	2011-08-20 01:38:18.9	1.3	T	MAD
DGMT	94.590	39	M	P	2011-08-20 01:38:22.6	1	T	NEIR
YAK	95.140	337	M	P	2011-08-20 01:38:21.6	-2.4	T	GSRC
ECSD	97.200	46	M	P	2011-08-20 01:38:32.4	-1	T	NEIR
SONA1	99.260	318	M	P	2011-08-20 01:38:41.7	-1.2	T	NEIR
AAK	119.910	307	M	PKIKP	2011-08-20 01:43:49.2	-2.3	T	GSRC
BRVK	122.630	320	M	PKIKP	2011-08-20 01:43:55.0	-1.5	T	GSRC
KBL	123.490	297	M	PKIKP	2011-08-20 01:43:59.6	1.2	T	MAD
ARU	128.580	325	M	PKIKP	2011-08-20 01:44:06.2	-1.6	T	GSRC
HEF	132.750	351	M	PKIKP	2011-08-20 01:44:18.5	2.7	T	MAD
OBN	139.960	332	M	PKIKP	2011-08-20 01:44:28.8	-0.3	T	GSRC
PTK	146.640	307	M	PKIKP	2011-08-20 01:44:42.9	1.8	T	MAD
MALT	147.540	307	M	PKIKP	2011-08-20 01:44:45.0	2.5	T	MAD
MALT	147.540	307	A	P	2011-08-20 01:44:45.5	3	T	BUC
RSDY	147.580	311	M	PKIKP	2011-08-20 01:44:46.0	3.5	T	MAD
GKP	147.980	346	M	PKIKP	2011-08-20 01:44:46.2	3.1	T	MAD
BSEG	148.420	354	M	PKIKP	2011-08-20 01:44:47.3	3.5	T	MAD
MEZF	154.100	0	A	P	2011-08-20 01:44:55.2	2.7	T	LDG
HAU	154.580	358	A	P	2011-08-20 01:44:56.4	3.2	T	LDG
LOR	155.310	2	A	P	2011-08-20 01:44:56.6	2.4	T	LDG
SSF	155.500	3	A	P	2011-08-20 01:44:57.0	2.6	T	LDG
TCF	156.190	5	A	P	2011-08-20 01:44:57.5	2.1	T	LDG
LPG	157.070	357	A	P	2011-08-20 01:44:59.7	2.8	T	LDG
FNA	157.270	327	M	PKIKP	2011-08-20 01:45:00.2	3.4	T	MAD
ORIF	157.680	359	A	P	2011-08-20 01:45:01.1	3.7	T	LDG
MBDF	157.840	357	A	P	2011-08-20 01:45:00.4	2.8	T	LDG
EPF	159.170	10	A	P	2011-08-20 01:45:02.0	2.9	T	LDG
EBAD	160.750	30	M	PKIKP	2011-08-20 01:45:04.1	3.3	T	MAD
RETOR	160.780	17	M	PKIKP	2011-08-20 01:45:04.5	3.5	T	MAD