Earthquake with magnitude of ML 3.7 on date 09-10-2021 and time 06:52:45 (UTC) in region Malta [Sea]

A magnitude ML 3.7 earthquake occured in region: Malta [Sea], on

  • 09-10-2021 06:52:45 (UTC)
  • 09-10-2021 08:52:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 34.825, 13.943 at 10 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
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
ML 3.7 2021-10-09
06:52:45
34.8248 13.9428 10 2021-10-09
07:16:58
Sala Sismica INGV-Roma 96371191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-09 06:52:45 ± 0.37
Latitude 34.8248 ± 0.0117
Longitude 13.9428 ± 0.0394
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96371191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3673
Semi-minor axis of confidence ellipse (meter) 926
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 286
Circular confidence region, given by single value of horizontal uncertainty (meter) 3670
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 321
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 2.94078
Number of stations at which the event was observed 43
Number of stations from which data was used for origin computation 12
Magnitude information

ML:3.7

Field Value
Value 3.7
Uncertainty 0.2
Num. used stations 65
Type of magnitude ML
Reference to an origin 96371191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-09 07:16:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.BIOG.HHZ. 2021-10-09T06:55:11.70 3.0 undecidable manual Sg -4.64 0
IV.PAOL.HHZ. 2021-10-09T06:55:09.33 3.0 undecidable manual Sg -2.19 0
IV.NRCA.HHZ. 2021-10-09T06:55:08.22 3.0 positive manual Pg 23.799999 0
IT.FIE.HGZ. 2021-10-09T06:55:04.70 3.0 undecidable manual Pn 2.77 0
CR.STON.BHZ. 2021-10-09T06:54:45.74 3.0 negative manual Pn -4.49 0
IV.GATE.HNZ. 2021-10-09T06:54:39.49 3.0 undecidable manual Pg 14.13 0
IX.SCL3.EHZ.02 2021-10-09T06:54:26.04 3.0 positive manual Pg 10.98 0
OT.OT15.EHZ. 2021-10-09T06:54:20.00 3.0 undecidable manual Pn -4.68 0
IV.PIPA.HHZ. 2021-10-09T06:54:03.75 3.0 positive manual Pn -0.74 0
IV.CELI.HHZ. 2021-10-09T06:54:02.49 3.0 negative manual Pn 0.62 0
IV.HAGA.HHZ. 2021-10-09T06:54:00.39 0.6 undecidable manual S 21 2.6458 38 0.12 43
IV.TDS.HHZ. 2021-10-09T06:53:59.53 3.0 negative manual Pn -4.67 0
IV.RAFF.HHZ. 2021-10-09T06:53:55.23 0.6 undecidable manual S 8 2.4201 38 0.37 44
IV.HAVL.HHZ. 2021-10-09T06:53:52.55 0.6 undecidable manual S 24 2.3373 38 -0.32 46
IV.HVIT.HHZ. 2021-10-09T06:53:50.16 0.6 undecidable manual S 12 2.2159 38 0.17 49
IV.PLAC.HHZ. 2021-10-09T06:53:50.37 3.0 positive manual Pn -0.13 0
IV.HMDC.HHZ. 2021-10-09T06:53:50.20 0.6 undecidable manual S 17 2.2384 38 -0.32 47
IV.ISPIC.EHZ. 2021-10-09T06:53:47.23 0.6 undecidable manual S 21 2.1035 38 -0.06 52
IV.MILZ.HHZ. 2021-10-09T06:53:43.36 3.0 positive manual Pg 1.25 0
IV.SOI.EHZ. 2021-10-09T06:53:43.47 3.0 negative manual Pn -0.41 0
IV.MPNC.HHZ. 2021-10-09T06:53:41.66 3.0 negative manual Pn 0.7 0
IV.MCPD.HHZ. 2021-10-09T06:53:39.87 3.0 negative manual Pg 1 0
IV.MUCR.HHZ. 2021-10-09T06:53:39.02 3.0 positive manual Pg 0.94 0
IV.SOLUN.HHZ. 2021-10-09T06:53:38.42 3.0 negative manual Pn -1.92 0
IV.MSFR.HHZ. 2021-10-09T06:53:37.92 3.0 positive manual Pn 0.37 0
IV.GIB.HHZ. 2021-10-09T06:53:37.38 3.0 negative manual Pn 0 0
IV.EPIT.HHZ. 2021-10-09T06:53:36.30 3.0 negative manual Pg 0.77 0
IV.SCIAR.HHZ. 2021-10-09T06:53:36.50 3.0 positive manual Pn -1.05 0
IV.CSLB.HHZ. 2021-10-09T06:53:36.37 3.0 positive manual Pn -0.24 0
IV.EMSG.HHZ. 2021-10-09T06:53:36.73 3.0 negative manual Pg 1.42 0
IV.PETRA.HHZ. 2021-10-09T06:53:35.22 3.0 negative manual Pn 0.13 0
IV.EPZF.HHZ. 2021-10-09T06:53:35.87 3.0 positive manual Pg 0.76 0
IV.ESCV.HHZ. 2021-10-09T06:53:35.80 3.0 positive manual Pg 1.82 0
IV.ALJA.HHZ. 2021-10-09T06:53:34.40 3.0 negative manual Pn -0.68 0
IV.EMPL.HHZ. 2021-10-09T06:53:34.63 3.0 negative manual Pg 1.12 0
IV.GALF.HHZ. 2021-10-09T06:53:34.56 3.0 negative manual Pg 1.45 0
IV.MMGO.HHE. 2021-10-09T06:53:32.22 0.3 undecidable manual P 345 2.9408 38 -0.4 54
IV.SCIAC.HHE. 2021-10-09T06:53:29.78 0.3 undecidable manual P 346 2.7744 38 -0.55 55
IV.HAGA.HHZ. 2021-10-09T06:53:28.41 0.3 undecidable manual P 21 2.6458 38 -0.14 64
IV.HSRS.HHE. 2021-10-09T06:53:26.51 0.3 undecidable manual P 24 2.4911 38 0.09 68
IV.SSY.HHZ. 2021-10-09T06:53:26.94 0.3 undecidable manual P 21 2.5037 38 0.35 65
IV.HVZN.HHZ. 2021-10-09T06:53:26.14 0.3 undecidable manual P 15 2.4336 38 0.53 63
IV.RAFF.HHZ. 2021-10-09T06:53:25.52 0.3 undecidable manual P 8 2.4201 38 0.09 70
IV.CLTA.HHZ. 2021-10-09T06:53:25.20 0.3 undecidable manual P 0 2.3319 38 0.99 54
IV.HAVL.HHZ. 2021-10-09T06:53:24.06 0.3 undecidable manual P 24 2.3373 38 -0.22 70
IV.WDD.HHZ. 2021-10-09T06:53:22.76 3.0 undecidable manual S 0
IV.HMDC.HHZ. 2021-10-09T06:53:22.67 0.3 undecidable manual P 17 2.2384 38 -0.25 72
IV.HVIT.HHZ. 2021-10-09T06:53:22.52 0.1 undecidable manual P 12 2.2159 38 -0.1 100
IV.ISPIC.EHZ. 2021-10-09T06:53:20.88 0.3 undecidable manual P 21 2.1035 38 -0.18 76
IV.WDD.HHZ. 2021-10-09T06:53:07.03 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ISPIC.HNN. ML:0 0.0010141838 0.6912 AML other m 2021-10-09T06:53:58.30
IV.ISPIC.EHN. ML:0 0.00117223305 0.7808 AML other m 2021-10-09T06:54:00.52
IV.ISPIC.EHE. ML:0 0.0011854417 0.5792 AML other m 2021-10-09T06:54:00.25
IV.ISPIC.HNE. ML:0 0.001361051 0.6016 AML other m 2021-10-09T06:54:00.26
IV.MPNC.HHE. ML:3.8 0.000428 0.46 AML other m 2021-10-09T06:53:49.35
IV.HMDC.HHN. ML:0 0.001484473 0.3392 AML other m 2021-10-09T06:53:58.91
IV.HMDC.HNE. ML:0 0.0013891775 0.3712 AML other m 2021-10-09T06:54:04.09
IV.HMDC.HHE. ML:0 0.001422224 0.3616 AML other m 2021-10-09T06:54:04.09
IV.HVIT.HHE. ML:0 0.00142662 0.4416 AML other m 2021-10-09T06:54:04.10
IV.HVIT.HHN. ML:0 0.0013598895 0.4192 AML other m 2021-10-09T06:54:01.65
IV.HMDC.HNN. ML:0 0.0014144365 0.3392 AML other m 2021-10-09T06:53:58.92
IV.HAVL.HHN. ML:0 0.002637241 1.2192 AML other m 2021-10-09T06:54:11.35
IV.SSY.HHN. ML:0 0.004138642 0.2784 AML other m 2021-10-09T06:54:00.74
IV.HAVL.HHE. ML:0 0.0015347615 0.24 AML other m 2021-10-09T06:54:04.87
IV.HAGA.HHE. ML:0 0.0011414725 0.5184 AML other m 2021-10-09T06:54:19.08
IV.RAFF.HHN. ML:0 0.0013575415 0.5824 AML other m 2021-10-09T06:54:15.56
IV.HVZN.HHN. ML:0 0.0007952458 0.3808 AML other m 2021-10-09T06:53:59.39
IV.HVZN.HNN. ML:0 0.00072758905 0.3904 AML other m 2021-10-09T06:53:59.39
IV.HVZN.HNE. ML:0 0.00098892925 0.4096 AML other m 2021-10-09T06:54:00.07
IV.HVZN.HHE. ML:0 0.001040244 0.4192 AML other m 2021-10-09T06:54:00.07
IV.CLTA.HHE. ML:3.6 0.0007395 0.66 AML other m 2021-10-09T06:54:03.14
IV.RAFF.HHE. ML:0 0.001477496 0.8608 AML other m 2021-10-09T06:54:09.91
IV.SSY.HHE. ML:0 0.00137771585 0.6592 AML other m 2021-10-09T06:54:00.48
IV.CLTA.HHN. ML:3.5 0.0006235 0.96 AML other m 2021-10-09T06:54:05.70
IV.EMSG.HHE. ML:0 0.00044907475 0.88 AML other m 2021-10-09T06:54:07.73
IV.HAGA.HHN. ML:0 0.0011827055 0.5216 AML other m 2021-10-09T06:54:18.80
IV.GALF.HHN. ML:0 0.00102218225 0.8224 AML other m 2021-10-09T06:54:14.21
IV.EMPL.HHN. ML:0 0.0015522355 0.2816 AML other m 2021-10-09T06:54:16.28
IV.SCIAR.HHN. ML:0 0.0002865663 0.6976 AML other m 2021-10-09T06:54:17.88
IV.CSLB.HHN. ML:0 0.0002700274 1.2576 AML other m 2021-10-09T06:54:18.04
IV.ESCV.HHN. ML:0 0.00074844455 0.8416 AML other m 2021-10-09T06:54:23.97
IV.SCIAR.HNN. ML:0 0.00032257945 0.6272 AML other m 2021-10-09T06:54:17.93
IV.SOLUN.HHN. ML:0 0.0003942233 0.96 AML other m 2021-10-09T06:54:18.36
IV.CSLB.HHE. ML:0 0.0003321285 0.72 AML other m 2021-10-09T06:54:19.69
IV.EPZF.HHN. ML:0 0.0005855159 0.3616 AML other m 2021-10-09T06:54:20.13
IV.EPZF.HHE. ML:0 0.0006061991 1.3216 AML other m 2021-10-09T06:54:20.97
IV.GALF.HHE. ML:3.9 0.000803 0.52 AML other m 2021-10-09T06:54:20.50
IV.ALJA.HHE. ML:0 0.0003029809 0.8416 AML other m 2021-10-09T06:54:20.84
IV.SCIAR.HHE. ML:0 0.0002269911 0.5792 AML other m 2021-10-09T06:54:20.73
IV.EPIT.HHE. ML:3.7 0.000401 0.42 AML other m 2021-10-09T06:54:21.57
IV.GIB.HHN. ML:0 0.00096814815 1.0784 AML other m 2021-10-09T06:54:21.47
IV.EMPL.HHE. ML:0 0.001162108 0.4992 AML other m 2021-10-09T06:54:20.08
IV.PETRA.HHN. ML:0 0.0005753802 1.0592 AML other m 2021-10-09T06:54:21.55
IV.ESCV.HHE. ML:0 0.000550729 0.5408 AML other m 2021-10-09T06:54:22.12
IV.EPIT.HHN. ML:0 0.0005274535 0.6208 AML other m 2021-10-09T06:54:22.49
IV.GIB.HHE. ML:0 0.001162602 0.96 AML other m 2021-10-09T06:54:23.03
IV.PETRA.HHE. ML:0 0.00059829125 0.5984 AML other m 2021-10-09T06:54:22.57
IV.MCPD.HHN. ML:0 0.00021147125 0.3616 AML other m 2021-10-09T06:54:22.13
IV.MSFR.HHN. ML:0 0.00016511005 1.2384 AML other m 2021-10-09T06:54:22.86
IV.ALJA.HHN. ML:3.2 0.000162 0.86 AML other m 2021-10-09T06:54:23.92
IV.SOLUN.HHE. ML:0 0.00049788445 0.5216 AML other m 2021-10-09T06:54:24.12
IV.MUCR.HHE. ML:0 0.0002767269 0.4384 AML other m 2021-10-09T06:54:24.45
IV.EMSG.HHN. ML:0 0.00059968365 0.64 AML other m 2021-10-09T06:54:25.87
IV.SCIAR.HNE. ML:0 0.0002229132 0.6688 AML other m 2021-10-09T06:54:21.06
IV.MUCR.HHN. ML:0 0.00028953745 1.36 AML other m 2021-10-09T06:54:27.94
IV.SOI.EHN. ML:0 0.0001351203 0.4608 AML other m 2021-10-09T06:54:28.66
IV.MSFR.HHE. ML:0 0.000109827055 1.6992 AML other m 2021-10-09T06:54:20.22
IV.MILZ.HHN. ML:0 0.0004969628 1.1808 AML other m 2021-10-09T06:54:31.25
IV.MCPD.HHE. ML:0 0.0001722899 0.6816 AML other m 2021-10-09T06:54:21.81
IV.MILZ.HHE. ML:0 0.0009961056 0.88 AML other m 2021-10-09T06:54:36.72
IV.MPNC.HHN. ML:0 0.00044476465 0.7424 AML other m 2021-10-09T06:54:32.34
IV.SOI.EHE. ML:0 0.00012357595 0.4384 AML other m 2021-10-09T06:54:29.26
IV.PLAC.HHN. ML:0 0.0001147009 0.6784 AML other m 2021-10-09T06:54:49.88
IV.PLAC.HNE. ML:3.5 0.000128783525 0.4608 AML other m 2021-10-09T06:54:40.35
IV.PLAC.HNN. ML:3.4 0.000100371595 0.88 AML other m 2021-10-09T06:54:37.73
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