INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of Mwp 6.0 on date 11-11-2017 and time 01:36:15 (Italy) in region Ascension Island region [Sea]

A magnitude Mwp 6.0 earthquake occured in region: Ascension Island region [Sea], on

  • 11-11-2017 00:36:15 (UTC)
  • 11-11-2017 01:36:15 (UTC +01:00) Italian time
  • 11-11-2017 00:36:15 (UTC +00:00) local time in the region of the earthquake (Atlantic/St_Helena)

and geographic coordinates (lat, lon) -11.59, -14.07 at 1 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.

Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Date and Time (UTC) Latitude Longitude Magnitude Depth (km) Published time (UTC) Author Location ID
Rev 100 2017-11-11
00:36:15
-11.59 -14.07 mb 5.2
Mwp 6.0
Mwpd 6.1
1 2017-11-11
00:54:10
Sala Sismica INGV-Roma 51765671
Best location and best magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-11-11 00:36:15
Latitude -11.59
Longitude -14.07
Depth (km) 1 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 51765671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 17805
Semi-minor axis of confidence ellipse (meter) 13913
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 165
Circular confidence region, given by single value of horizontal uncertainty (meter) 14388.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56.6562
Number of associated phases, regardless of their use for origin computation 66
Number of defining phases 66
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 2.18667
Epicentral distance of station closest to the epicenter (degree) 9.18462
Epicentral distance of station farthest from the epicenter (degree) 83.64871
Number of stations at which the event was observed 64
Number of stations from which data was used for origin computation 64
Magnitudes information

Mwpd:6.1

Field Value
Value 6.1
Uncertainty 0.1
Num. used stations 10
Type of magnitude Mwpd
Reference to an origin 51765671
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-11-11 00:54:10

Mwp:6

Field Value
Value 6
Uncertainty 0.1
Num. used stations 13
Type of magnitude Mwp
Reference to an origin 51765671
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-11-11 00:54:10

mb:5.2

Field Value
Value 5.2
Uncertainty 0.1
Num. used stations 43
Type of magnitude mb
Reference to an origin 51765671
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-11-11 00:54:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IU.WCI.BHZ.00 2017-11-11T00:48:45.82 10.0 positive automatic P 311 83.6487 1.77437 0.136115
US.LRAL.BHZ.00 2017-11-11T00:48:39.88 10.0 negative automatic P 306 82.4403 2.10227 0.139658
US.BRAL.BHZ.00 2017-11-11T00:48:37.45 10.0 negative automatic P 304 81.8728 2.66995 0
US.ACSO.BHZ.00 2017-11-11T00:48:37.85 10.0 negative automatic P 314 81.991 2.40638 0.149771
US.TZTN.BHZ.00 2017-11-11T00:48:33.33 10.0 positive automatic P 310 81.0094 3.05563 0.161842
US.GOGA.BHZ.00 2017-11-11T00:48:27.00 10.0 positive automatic P 307 79.797 3.30391 0.174807
US.BLA.BHZ.00 2017-11-11T00:48:18.08 10.0 positive automatic P 312 78.9617 -1.14937 0.0772347
US.BINY.BHZ.00 2017-11-11T00:48:16.63 10.0 negative automatic P 318 78.0719 2.3338 0.176623
PL.SUW.BHZ. 2017-11-11T00:47:58.57 10.0 positive automatic PcP 22 72.8054 -2.62001 0
IU.GNI.BHZ.00 2017-11-11T00:47:57.87 10.0 negative automatic P 43 75.0345 0.5881 0.196343
KO.SIRT.BHZ. 2017-11-11T00:47:41.00 10.0 negative automatic P 44 72.1494 0.780439 0.2535
IU.KIEV.BHZ.00 2017-11-11T00:47:39.42 10.0 positive automatic P 27 72.7762 -4.38495 0.243102
PL.OJC.BHZ. 2017-11-11T00:47:18.26 10.0 negative automatic P 23 68.529 0.31347 0.291461
KO.BNN.BHZ. 2017-11-11T00:47:18.72 10.0 negative automatic P 40 68.5813 0.274597 0.271871
KO.GAZ.BHZ. 2017-11-11T00:47:18.56 10.0 negative automatic P 42 68.4772 0.835065 0.255271
GE.TIRR.BHZ. 2017-11-11T00:47:13.97 10.0 positive automatic P 31 67.9802 -0.483782 0.278593
GE.PSZ.BHZ. 2017-11-11T00:47:07.10 10.0 negative automatic P 24 66.7103 0.54161 0.306384
IS.GEM.BHZ. 2017-11-11T00:46:57.93 10.0 negative automatic P 45 65.1839 1.32476 0.321422
IU.OTAV.BHZ.00 2017-11-11T00:46:54.87 10.0 positive automatic P 276 64.9904 -1.03949 0.327483
GB.MCH1.BHZ. 2017-11-11T00:46:53.08 10.0 negative automatic P 8 64.305 2.20806 0.352093
GE.WLF.BHZ. 2017-11-11T00:46:53.05 10.0 negative automatic PKPdf 14 63.7807 5.62023 0.335128
HL.RDO.HHZ. 2017-11-11T00:46:49.45 10.0 negative automatic P 32 64.1414 -0.32522 0.324868
IS.AMAZ.BHZ. 2017-11-11T00:46:48.01 10.0 negative automatic P 46 63.7127 1.01386 0.30855
KO.ELL.BHZ. 2017-11-11T00:46:47.00 10.0 negative automatic P 38 63.6006 0.597558 0
OE.ARSA.BHZ. 2017-11-11T00:46:46.79 10.0 positive automatic P 22 64.4905 -5.35427 0.282402
HU.KOVH.BHZ. 2017-11-11T00:46:44.10 10.0 positive automatic PKPdf 24 64.5105 -8.12597 0.341252
MN.DIVS.BHZ. 2017-11-11T00:46:44.57 10.0 negative automatic PKPdf 27 63.7057 -2.48408 0.321764
MN.BLY.BHZ. 2017-11-11T00:46:42.87 10.0 positive automatic P 24 63.0446 0.315029 0.360391
II.BFO.BHZ.00 2017-11-11T00:46:42.57 10.0 negative automatic P 16 63.1251 -0.574303 0.321897
IV.PTCC.BHZ. 2017-11-11T00:46:42.55 10.0 negative automatic P 21 62.9976 0.232508 0.344969
GE.EIL.BHZ. 2017-11-11T00:46:41.35 10.0 positive automatic P 48 62.6947 1.13294 0.373729
G.ECH.BHZ.00 2017-11-11T00:46:39.80 10.0 negative automatic P 16 62.7027 -0.534274 0.348711
HL.ARG.HHZ. 2017-11-11T00:46:38.72 10.0 positive automatic PKPdf 38 62.1678 2.04334 0
OE.DAVA.BHZ. 2017-11-11T00:46:38.72 10.0 positive automatic P 18 62.6359 -1.34829 0.357507
HT.FNA.HHZ. 2017-11-11T00:46:33.85 10.0 negative automatic P 30 61.7718 -0.269543 0.312109
MN.TUE.BHZ. 2017-11-11T00:46:32.82 10.0 positive automatic P 18 61.7444 -1.3169 0.353166
GE.KARP.BHZ. 2017-11-11T00:46:30.20 10.0 negative automatic P 38 61.144 0.357493 0.255344
HT.AGG.HHZ. 2017-11-11T00:46:29.95 10.0 positive automatic P 32 60.9202 1.61796 0.392709
GE.SANT.BHZ. 2017-11-11T00:46:26.02 10.0 negative automatic P 36 60.7099 -0.872754 0.358596
GE.SNAA.BHZ. 2017-11-11T00:46:23.21 10.0 positive automatic P 176 60.4628 -2.03887 0.386386
MN.BNI.BHZ. 2017-11-11T00:46:20.70 10.0 negative automatic P 17 59.6712 0.784836 0.397185
MN.IDI.BHZ. 2017-11-11T00:46:20.02 10.0 negative automatic P 37 59.6226 0.56008 0.380555
MN.AQU.BHZ. 2017-11-11T00:46:19.27 10.0 positive automatic P 23 59.5422 0.369843 0.381612
IV.MGAB.BHZ. 2017-11-11T00:46:18.82 10.0 positive automatic P 22 59.5339 -0.00118707 0.390205
C1.LL02.BHZ. 2017-11-11T00:46:14.83 10.0 negative automatic P 226 58.7746 1.29936 0.419121
C1.CO02.BHZ. 2017-11-11T00:45:54.45 10.0 negative automatic P 240 55.8504 1.44293 0.441367
G.PEL.BHZ.00 2017-11-11T00:45:54.40 10.0 negative automatic P 238 55.8491 1.487 0.422603
C.GO04.BHZ. 2017-11-11T00:45:50.93 10.0 negative automatic P 241 55.5533 -0.111406 0.450639
IU.LCO.BHZ.00 2017-11-11T00:45:48.72 10.0 negative automatic P 243 55.3396 -0.805672 0.438957
C.GO03.BHZ. 2017-11-11T00:45:46.80 10.0 positive automatic P 244 54.7931 1.49529 0.501186
C.GO02.BHZ. 2017-11-11T00:45:41.60 10.0 negative automatic PP 247 54.0256 1.56338 0.478514
GE.KMBO.BHZ.00 2017-11-11T00:45:27.67 10.0 negative automatic P 82 51.9714 2.90021 0.534269
GT.LPAZ.BHZ.00 2017-11-11T00:45:27.50 10.0 positive automatic P 258 52.5352 -1.95381 0.474299
G.TRIS.BHZ.00 2017-11-11T00:45:04.20 10.0 negative automatic PcP 177 25.5212 -11.099 0
IU.SAML.BHZ.00 2017-11-11T00:44:56.52 10.0 positive automatic P 268 48.3411 -0.396686 0.543355
II.MBAR.BHZ.00 2017-11-11T00:44:40.22 10.0 negative automatic P 79 45.8058 2.88428 0.596896
GT.CPUP.BHZ.00 2017-11-11T00:44:15.65 10.0 negative automatic P 244 43.2364 -0.927594 0.62652
G.MPG.BHZ.00 2017-11-11T00:44:04.15 10.0 positive automatic P 291 41.8479 -1.13311 0.61036
IU.LSZ.BHZ.00 2017-11-11T00:44:01.57 10.0 positive automatic P 100 41.2031 1.39651 0.691352
GE.WIN.BHZ. 2017-11-11T00:42:38.90 10.0 negative automatic P 114 31.6568 0.0973475 0.916843
IU.TSUM.BHZ.00 2017-11-11T00:42:36.07 10.0 positive automatic P 108 31.3957 -0.34982 0.842217
IU.RCBR.BHZ.00 2017-11-11T00:41:10.87 10.0 positive automatic P 283 22.3237 -1.97311 0.851064
GT.DBIC.BHZ.00 2017-11-11T00:40:52.13 10.0 positive automatic P 27 20.4344 -0.332364 0.909091
II.SHEL.BHZ.00 2017-11-11T00:38:24.77 10.0 positive automatic P 119 9.1846 -2.66839 0.952381
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download