Earthquake with magnitude of Mwp 6.3 on date 26-07-2021 and time 14:09:09 (Italy) in region Minahassa Peninsula, Sulawesi, Indonesia [Sea: Indonesia]

A magnitude Mwp 6.3 earthquake occured in region: Minahassa Peninsula, Sulawesi, Indonesia [Sea: Indonesia], on

  • 26-07-2021 12:09:09 (UTC)
  • 26-07-2021 14:09:09 (UTC +02:00) Italian time
  • 26-07-2021 20:09:09 (UTC +08:00) local time in the region of the earthquake (Asia/Makassar)

and geographic coordinates (lat, lon) -0.749, 122.017 at 35 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

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and adjourned progressively as more data become available. See http://shakemap.rm.ingv.it/ for additional information.

The red star indicates the epicenter. The red triangles show the stations of the INGV Italian National Seismic Network and the blue triangles those of the Nationa Accelerometric Network of the Dipartimento della Protezione Civile.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of the istrumentally derived intensities. To this purpose, it is used a conversion relation between ground acceleration and velocity, and the Mercalli Modificata (MMI - Modified Mercalli Intensity) scale. In general, the Mercalli intensity scale relies on the effects that the ground shaking produces as reported by an observer.
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows This map shows the distribution of peak ground acceleration expressed as per cent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
mb 5.6
Mwp 6.3

Mwpd 6.4
2021-07-26
12:09:09
-0.7488 122.017 35 2021-07-26
12:23:09
Sala Sismica INGV-Roma 93236341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-26 12:09:09
Latitude -0.7488
Longitude 122.0170
Depth (km) 35 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 93236341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3331
Semi-minor axis of confidence ellipse (meter) 1455
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
Circular confidence region, given by single value of horizontal uncertainty (meter) 2689.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 40.7934
Number of associated phases, regardless of their use for origin computation 74
Number of defining phases 74
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.5041
Epicentral distance of station closest to the epicenter (degree) 0.80964
Epicentral distance of station farthest from the epicenter (degree) 64.36106
Number of stations at which the event was observed 66
Number of stations from which data was used for origin computation 66
Magnitudes information

Mwpd:6.4

Field Value
Value 6.4
Uncertainty 0.1
Num. used stations 30
Type of magnitude Mwpd
Reference to an origin 93236341
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-07-26 12:23:09

Mwp:6.3

Field Value
Value 6.3
Uncertainty 0.1
Num. used stations 43
Type of magnitude Mwp
Reference to an origin 93236341
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-07-26 12:23:09

mb:5.6

Field Value
Value 5.6
Uncertainty 0.2
Num. used stations 50
Type of magnitude mb
Reference to an origin 93236341
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-07-26 12:23:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IU.MA2.BHZ.00 2021-07-26T12:19:40.32 10.0 positive automatic P 16 64.3611 -0.960612 0.335314
NZ.URZ.HHZ.10 2021-07-26T12:19:32.55 10.0 negative automatic P 134 62.7796 1.75142 0.365538
IU.YAK.BHZ.00 2021-07-26T12:19:30.27 10.0 negative automatic P 4 63.0466 -2.30876 0.352108
IU.SNZO.BHZ.00 2021-07-26T12:19:28.70 10.0 positive automatic P 138 62.3573 0.703679 0.382832
IU.PET.BHZ.00 2021-07-26T12:19:23.32 10.0 negative automatic P 24 61.8203 -1.06275 0.352141
NZ.OUZ.HHZ.10 2021-07-26T12:19:08.77 10.0 negative automatic P 132 58.9892 3.73523 0.404695
II.MSVF.BHZ.00 2021-07-26T12:18:58.02 10.0 negative automatic P 111 57.5837 2.66978 0.436215
AU.MILA.BHZ.00 2021-07-26T12:17:14.95 10.0 negative automatic P 148 44.1072 1.01911 0.678171
II.TLY.BHZ.00 2021-07-26T12:18:33.27 10.0 negative automatic P 346 54.6783 -1.29349 0.420826
IU.YSS.BHZ.00 2021-07-26T12:18:05.30 10.0 negative automatic P 18 51.0454 -2.38112 0.490944
IU.ULN.BHZ.00 2021-07-26T12:18:01.22 10.0 positive automatic P 347 50.3265 -1.29457 0.575031
ND.ONTNC.BHZ.00 2021-07-26T12:17:49.20 10.0 positive automatic P 120 48.2783 2.58984 0.582233
II.ERM.BHZ.00 2021-07-26T12:17:34.02 10.0 negative automatic P 22 46.8283 -1.3188 0.543663
ND.KOUNC.BHZ.00 2021-07-26T12:17:28.75 10.0 positive automatic P 118 45.7769 1.66323 0.62507
JP.JTM.BHZ. 2021-07-26T12:17:19.80 10.0 negative automatic P 20 45.0017 -1.15463 0.301782
AU.RIV.BHZ. 2021-07-26T12:17:06.57 10.0 positive automatic P 144 42.8796 2.66228 0.676591
GE.MALK.BHZ. 2021-07-26T12:17:00.12 10.0 positive automatic P 283 42.3305 0.654452 0.602513
GE.HALK.BHZ. 2021-07-26T12:16:56.00 10.0 positive automatic P 280 41.8251 0.655809 0.712418
II.PALK.BHZ.00 2021-07-26T12:16:56.00 10.0 negative automatic P 282 41.9818 0.310388 0.573032
AU.ARMA.BHZ. 2021-07-26T12:16:48.55 10.0 positive automatic P 139 40.8617 0.934703 0.563087
IU.MAJO.BHZ.00 2021-07-26T12:16:39.12 10.0 negative automatic P 20 40.2081 -2.96996 0.725904
IU.HNR.BHZ.00 2021-07-26T12:16:30.45 10.0 negative automatic P 104 38.7237 0.781364 0.356311
JP.JGF.BHZ. 2021-07-26T12:16:29.85 10.0 positive automatic P 20 39.0637 -2.74338 0.683938
JP.JSG.BHZ. 2021-07-26T12:16:28.15 10.0 positive automatic P 22 38.5225 0.175342 0.775956
G.INU.BHZ.00 2021-07-26T12:16:27.36 10.0 positive automatic P 20 38.7224 -2.29647 0.689902
AU.EIDS.BHZ. 2021-07-26T12:16:18.25 10.0 negative automatic P 134 37.3136 0.446029 0.754956
AU.HTT.BHZ. 2021-07-26T12:16:08.97 10.0 positive automatic P 156 36.3279 -0.527239 0.839672
JP.JTU.BHZ. 2021-07-26T12:16:07.55 10.0 positive automatic P 10 35.9461 1.42734 0
JP.JCJ.BHZ. 2021-07-26T12:15:47.40 10.0 positive automatic P 33 33.9368 -1.41098 0.848481
AU.QLP.BHZ. 2021-07-26T12:15:44.82 10.0 negative automatic P 142 33.522 -0.394672 0.783995
IU.NWAO.BHZ.00 2021-07-26T12:15:35.10 10.0 positive automatic P 187 32.4899 -1.13657 0.899026
IU.CTAO.BHZ.00 2021-07-26T12:15:20.47 10.0 negative automatic P 131 30.5929 0.931872 0.730798
AU.RABL.BHZ.00 2021-07-26T12:15:18.65 10.0 negative automatic P 97 30.3085 1.63872 0.902769
AU.FORT.BHZ.00 2021-07-26T12:15:17.78 10.0 positive automatic P 170 30.5708 -1.53526 0.940075
IU.CHTO.BHZ.00 2021-07-26T12:15:14.37 10.0 positive automatic P 312 29.9369 0.616933 0.952381
AU.MORW.BHZ. 2021-07-26T12:15:02.72 10.0 positive automatic P 191 28.8863 -1.6982 0.888889
RM.SLV.BHZ. 2021-07-26T12:15:00.07 10.0 negative automatic P 322 28.2893 0.897934 0.952381
IU.GUMO.BHZ.00 2021-07-26T12:14:48.97 10.0 positive automatic P 57 26.801 3.20331 0
GE.LHMI.BHZ. 2021-07-26T12:14:36.87 10.0 negative automatic P 284 25.7412 0.70611 0.714286
AU.MANU.BHZ.00 2021-07-26T12:14:35.88 10.0 negative automatic P 93 25.3731 3.02286 0.898876
IU.TATO.BHZ.00 2021-07-26T12:14:34.42 10.0 positive automatic P 359 25.7262 -1.63526 0.816327
JP.YOJ.BHZ. 2021-07-26T12:14:31.60 10.0 positive automatic P 2 25.2334 0.0388126 0.952381
AU.WRKA.BHZ.00 2021-07-26T12:14:28.65 10.0 negative automatic P 166 25.0339 -1.20092 0.909091
GE.GSI.BHZ. 2021-07-26T12:14:24.37 10.0 positive automatic P 275 24.5246 -0.759982 0.769231
AU.GIRL.BHZ.00 2021-07-26T12:14:12.13 10.0 negative automatic P 199 23.1643 -0.280074 0.952381
II.WRAB.BHZ.00 2021-07-26T12:14:05.60 10.0 positive automatic P 149 22.6697 -1.63823 0.898876
GE.BKNI.BHZ. 2021-07-26T12:13:50.42 10.0 negative automatic P 273 21.0034 1.04758 0.888889
IU.MBWA.BHZ.00 2021-07-26T12:13:43.10 10.0 negative automatic P 186 20.5308 -1.19162 0.869565
GE.MNAI.BHZ. 2021-07-26T12:13:33.07 10.0 negative automatic P 259 19.3774 1.34109 0.43956
AU.XMI.BHZ. 2021-07-26T12:13:26.25 10.0 positive automatic P 239 18.9075 -0.354598 0.677966
GE.GENI.BHZ. 2021-07-26T12:13:20.42 10.0 negative automatic P 96 18.2351 1.25413 0.851064
AU.KDU.BHZ.00 2021-07-26T12:12:47.88 10.0 positive automatic P 139 15.8087 -1.01694 0.952381
AU.MTN.BHZ.00 2021-07-26T12:12:38.63 10.0 positive automatic P 144 15.0956 -1.01316 0.97561
GE.JAGI.BHZ. 2021-07-26T12:11:44.62 10.0 positive automatic P 225 10.9985 0.72572 0.952381
GE.FAKI.BHZ. 2021-07-26T12:11:35.62 10.0 negative automatic P 102 10.4535 -0.813824 0.714286
GE.SOEI.BHZ. 2021-07-26T12:11:22.47 10.0 positive automatic P 166 9.2801 1.95354 0.909091
MY.KKM.BHZ. 2021-07-26T12:11:17.02 10.0 positive automatic P 320 8.9271 1.37779 0.909091
GE.BNDI.BHZ. 2021-07-26T12:11:15.27 10.0 negative automatic P 116 8.7347 2.40385 0.43956
IU.DAV.BHZ.00 2021-07-26T12:11:13.15 10.0 positive automatic P 24 8.588 2.26511 0.43956
GE.MMRI.BHZ. 2021-07-26T12:11:00.42 10.0 positive automatic P 178 7.8896 -0.877672 0.930233
MY.LDM.BHZ. 2021-07-26T12:10:48.72 10.0 positive automatic P 329 6.89 1.13015 0.909091
GE.TNTI.BHZ. 2021-07-26T12:10:30.02 10.0 negative automatic P 74 5.5614 0.69743 0.43956
GE.BKB.BHZ. 2021-07-26T12:10:23.92 10.0 negative automatic P 266 5.1236 0.596964 0.615385
II.KAPI.BHZ.00 2021-07-26T12:10:18.47 10.0 negative automatic P 208 4.8277 -0.821105 0.941176
GE.SANI.BHZ. 2021-07-26T12:10:09.87 10.0 negative automatic P 108 4.1775 -0.439234 0.869565
GE.LUWI.BHZ. 2021-07-26T12:09:23.22 10.0 positive automatic P 111 0.8096 -0.793892 0.952381
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download