Earthquake with magnitude of Mwp 6.0 on date 05-05-2021 and time 03:24:36 (Italy) in region Southern Sumatera, Indonesia [Sea: Indonesia]

A magnitude Mwp 6.0 earthquake occured in region: Southern Sumatera, Indonesia [Sea: Indonesia], on

  • 05-05-2021 01:24:36 (UTC)
  • 05-05-2021 03:24:36 (UTC +02:00) Italian time
  • 05-05-2021 09:24:36 (UTC +08:00) local time in the region of the earthquake (Asia/Singapore)

and geographic coordinates (lat, lon) -1.948, 99.794 at 20 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 5.5
Mwp 6.0

Mwpd 6.1
2021-05-05
01:24:36
-1.9477 99.7945 20 2021-05-05
01:38:06
Sala Sismica INGV-Roma 89781671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-05 01:24:36
Latitude -1.9477
Longitude 99.7945
Depth (km) 20 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 89781671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 15445
Semi-minor axis of confidence ellipse (meter) 3787
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 41
Circular confidence region, given by single value of horizontal uncertainty (meter) 12635.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 45.0716
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) 1.77881
Epicentral distance of station closest to the epicenter (degree) 3.93623
Epicentral distance of station farthest from the epicenter (degree) 79.3781
Number of stations at which the event was observed 63
Number of stations from which data was used for origin computation 63
Magnitudes information

Mwpd:6.1

Field Value
Value 6.1
Uncertainty 0.1
Num. used stations 23
Type of magnitude Mwpd
Reference to an origin 89781671
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-05-05 01:38:06

Mwp:6

Field Value
Value 6
Uncertainty 0.1
Num. used stations 28
Type of magnitude Mwp
Reference to an origin 89781671
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-05-05 01:38:06

mb:5.5

Field Value
Value 5.5
Uncertainty 0.1
Num. used stations 37
Type of magnitude mb
Reference to an origin 89781671
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-05-05 01:38:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IU.KIEV.BHZ.00 2021-05-05T01:36:37.62 10.0 positive automatic P 323 79.3781 -1.31684 0.180838
KO.BALB.HHZ. 2021-05-05T01:36:27.82 10.0 positive automatic P 311 77.4498 -0.455411 0.189658
IU.SNZO.BHZ.00 2021-05-05T01:36:28.17 10.0 negative automatic P 132 77.4121 0.105762 0.19997
GE.KARP.BHZ. 2021-05-05T01:36:26.70 10.0 positive automatic P 307 77.1138 0.232832 0.185308
GT.LBTB.BHZ.00 2021-05-05T01:36:15.15 10.0 negative automatic P 245 74.8673 1.38609 0.22616
NZ.KHZ.HHZ.10 2021-05-05T01:36:24.69 10.0 positive automatic P 133 76.7312 0.463672 0
GT.LBTB.BHZ.00 2021-05-05T01:36:24.50 10.0 positive automatic sP 245 74.8673 3.08908 0
HL.ARG.HHZ. 2021-05-05T01:36:22.76 10.0 positive automatic P 308 76.4953 -0.145181 0.188566
NZ.OUZ.HHZ.10 2021-05-05T01:36:20.10 10.0 positive automatic P 126 75.675 1.88159 0.218714
GT.BOSA.BHZ.00 2021-05-05T01:36:18.23 10.0 positive automatic P 241 75.5094 0.74474 0.211834
IU.ANTO.BHZ.00 2021-05-05T01:36:06.90 10.0 positive automatic P 313 73.8605 -0.996613 0.236966
KO.BZK.BHZ. 2021-05-05T01:36:05.98 10.0 positive automatic P 315 73.6154 -0.313755 0.201294
IU.PET.BHZ.00 2021-05-05T01:36:05.07 10.0 positive automatic P 32 73.5121 -0.606177 0.235167
GE.CSS.BHZ. 2021-05-05T01:35:57.15 10.0 positive automatic P 308 72.0818 -0.0852882 0.256675
IS.KZIT.BHZ. 2021-05-05T01:35:45.66 10.0 positive automatic P 304 70.147 0.177527 0.266325
GE.SALP.BHZ. 2021-05-05T01:35:43.92 10.0 positive automatic P 305 69.8036 0.50046 0.273307
IS.GEM.BHZ. 2021-05-05T01:35:43.75 10.0 positive automatic P 307 69.7408 0.76283 0.259135
II.MBAR.BHZ.00 2021-05-05T01:35:41.40 10.0 negative automatic P 270 69.0453 2.50858 0
GE.EIL.BHZ. 2021-05-05T01:35:40.95 10.0 positive automatic P 303 69.3673 0.270289 0.281565
IU.YAK.BHZ.00 2021-05-05T01:35:29.52 10.0 positive automatic P 15 67.8877 -1.90791 0.292342
II.ARTI.BHZ.00 2021-05-05T01:35:25.87 10.0 positive automatic P 337 67.2519 -1.57881 0.314162
ND.KOUNC.BHZ.00 2021-05-05T01:35:16.65 10.0 positive automatic P 112 65.4818 0.57729 0.294599
IU.GNI.BHZ.00 2021-05-05T01:35:15.77 10.0 positive automatic P 316 65.435 -0.261298 0.321959
AF.ZOMB.BHZ. 2021-05-05T01:35:12.73 10.0 positive automatic P 254 64.8651 0.517413 0.321732
IU.YSS.BHZ.00 2021-05-05T01:34:50.60 10.0 positive automatic P 32 61.6824 -0.393673 0.387658
JP.JKA.BHZ. 2021-05-05T01:34:37.70 10.0 positive automatic sP 37 57.9853 4.69786 0
II.ERM.BHZ.00 2021-05-05T01:34:31.47 10.0 positive automatic P 37 58.8598 -0.185158 0.427853
JP.JTM.BHZ. 2021-05-05T01:34:16.95 10.0 positive automatic P 37 56.8688 -0.745438 0.392055
G.CAN.BHZ.00 2021-05-05T01:34:15.45 10.0 positive automatic P 132 56.4603 0.55664 0.4528
II.KURK.BHZ.00 2021-05-05T01:34:08.25 10.0 positive automatic P 344 55.68 -0.978854 0.481236
GE.VOI.BHZ. 2021-05-05T01:34:07.15 10.0 positive automatic P 244 55.1984 1.22693 0.413953
II.ABPO.BHZ.00 2021-05-05T01:34:00.42 10.0 positive automatic P 248 54.1651 1.92632 0.455697
II.TLY.BHZ.00 2021-05-05T01:33:54.22 10.0 positive automatic P 3 53.7254 -0.899883 0.494281
IU.MAJO.BHZ.00 2021-05-05T01:33:44.52 10.0 positive automatic P 39 52.4862 -1.44038 0.513676
JP.JGF.BHZ. 2021-05-05T01:33:36.20 10.0 positive automatic P 39 51.3618 -1.40788 0.531595
IU.MAKZ.BHZ.00 2021-05-05T01:33:35.50 10.0 positive automatic P 344 51.2081 -0.96477 0.560119
G.INU.BHZ.00 2021-05-05T01:33:33.46 10.0 positive automatic P 39 50.9963 -1.32706 0.537487
IU.ULN.BHZ.00 2021-05-05T01:33:28.17 10.0 positive automatic P 6 50.2124 -0.955809 0.563333
II.AAK.BHZ.00 2021-05-05T01:33:27.92 10.0 positive automatic P 336 50.0802 -0.205575 0.516369
IU.CTAO.BHZ.00 2021-05-05T01:33:17.85 10.0 positive automatic P 115 48.831 -0.529706 0.579795
JP.JMN.BHZ. 2021-05-05T01:33:11.70 10.0 positive automatic P 39 47.9669 -0.0432649 0.587566
JP.JSU.BHZ. 2021-05-05T01:32:42.80 10.0 positive automatic P 38 44.3382 -0.357712 0.665975
JP.JOW.BHZ. 2021-05-05T01:32:06.30 10.0 positive automatic P 42 39.7754 0.414577 0.734148
IU.NWAO.BHZ.00 2021-05-05T01:31:26.12 10.0 positive automatic P 154 35.0371 0.35492 0.846059
IO.EVN.BHZ. 2021-05-05T01:31:03.70 10.0 positive automatic P 338 32.4042 0.0402993 0.922919
GE.FAKI.BHZ. 2021-05-05T01:31:02.02 10.0 positive automatic P 92 32.437 -1.08894 0.879313
IN.SHL.HHZ. 2021-05-05T01:30:28.17 10.0 positive automatic P 345 28.5662 -0.728364 0.970874
GE.KAAM.BHZ. 2021-05-05T01:30:24.17 10.0 negative automatic sP 275 26.9051 2.99297 0
GE.SANI.BHZ. 2021-05-05T01:30:06.62 10.0 positive automatic P 91 26.1763 -0.848175 0.930233
RM.SLV.BHZ. 2021-05-05T01:29:41.32 10.0 positive automatic P 10 23.6171 -2.96212 0.43956
GE.MALK.BHZ. 2021-05-05T01:29:27.12 10.0 positive automatic P 299 21.8038 1.95399 0.930233
II.PALK.BHZ.00 2021-05-05T01:29:20.22 10.0 positive automatic P 296 21.1639 1.87211 0.952381
GE.HALK.BHZ. 2021-05-05T01:29:16.00 10.0 negative automatic P 293 20.7072 2.64577 0.909091
IU.CHTO.BHZ.00 2021-05-05T01:29:10.17 10.0 positive automatic P 358 20.7777 -4.00435 0.64
MY.KKM.BHZ. 2021-05-05T01:28:47.87 10.0 positive automatic P 64 18.2395 1.46327 0.930233
RM.DLV.BHZ. 2021-05-05T01:28:23.77 10.0 positive automatic P 32 16.3612 0.719094 0.769231
GE.JAGI.BHZ. 2021-05-05T01:28:12.32 10.0 positive automatic P 115 15.7075 -2.14592 0.952381
MY.SBM.BHZ. 2021-05-05T01:27:45.02 10.0 positive automatic P 71 13.1724 4.71002 0.930233
GE.SMRI.BHZ. 2021-05-05T01:27:22.62 10.0 positive automatic P 116 11.7719 1.46336 0.740741
II.COCO.BHZ.00 2021-05-05T01:27:02.20 10.0 negative automatic P 196 10.6536 -3.62585 0.963855
GE.LHMI.BHZ. 2021-05-05T01:26:23.22 10.0 positive automatic P 338 7.7192 -2.3771 0.421053
MY.KUM.BHZ. 2021-05-05T01:26:20.27 10.0 positive automatic P 7 7.2877 0.582772 0.930233
GE.MNAI.BHZ. 2021-05-05T01:25:35.42 10.0 positive automatic P 127 3.9726 1.2602 0.909091
GE.GSI.BHZ. 2021-05-05T01:25:33.97 10.0 positive automatic P 326 3.9362 0.32049 0.97561
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