Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 11-05-2021 and time 02:30:42 (Italy) in region Mar Ionio Meridionale (MARE)

A magnitude ML 2.5 earthquake occured in region: Mar Ionio Meridionale (MARE), on

  • 11-05-2021 00:30:42 (UTC)
  • 11-05-2021 02:30:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.2240, 15.9460 at 25 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km E of Siracusa (122291 inhabitants)
81 Km SE of Acireale (52622 inhabitants)
82 Km E of Catania (314555 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.5 2021-05-11
00:30:42		 37.224 15.9463 25 2021-12-29
11:11:59		 Bollettino Sismico Italiano INGV 89983061
Reviewed
Rev100 		ML 2.5 2021-05-11
00:30:42		 37.2205 15.9218 11 2021-05-11
00:46:17		 Sala Sismica INGV-Roma 89976601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-11 00:30:42 ± 0.14
Latitude 37.2240 ± 0.0072
Longitude 15.9463 ± 0.0102
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89983061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 804
Semi-minor axis of confidence ellipse (meter) 666
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 289
Circular confidence region, given by single value of horizontal uncertainty (meter) 800.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 218
Number of associated phases, regardless of their use for origin computation 60
Number of defining phases 60
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.59175
Epicentral distance of station farthest from the epicenter (degree) 1.81303
Number of stations at which the event was observed 45
Number of stations from which data was used for origin computation 45
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations 78
Type of magnitude ML
Reference to an origin 89976601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-11 00:46:17

ML:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations 76
Type of magnitude ML
Reference to an origin 89983061
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-08-20 19:28:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CROCE.HHZ. 2021-05-11T00:31:20.02 0.3 undecidable manual S 251 132.3675 54 -0.14 64
IV.MUCR.HHZ. 2021-05-11T00:31:19.92 0.3 undecidable manual S 314 130.869 54 0.08 65
IV.HVIT.HHZ. 2021-05-11T00:31:18.75 0.3 undecidable manual S 259 128.6712 97 -0.55 59
IV.ESCV.HHZ. 2021-05-11T00:31:16.02 0.6 undecidable manual S 301 115.1958 98 0.27 43
IV.HVZN.HHZ. 2021-05-11T00:31:13.49 0.6 undecidable manual S 268 108.9132 98 -0.57 41
IV.HMDC.HHZ. 2021-05-11T00:31:13.26 0.3 undecidable manual S 254 107.0151 98 -0.32 65
IV.IACL.HHZ. 2021-05-11T00:31:12.34 0.3 undecidable manual P 317 201.243 54 -0.39 46
IV.HPAC.HHZ. 2021-05-11T00:31:11.79 0.3 undecidable manual S 235 98.8233 99 0.38 67
IV.IFIL.HHZ. 2021-05-11T00:31:11.33 0.3 undecidable manual P 322 191.0643 54 -0.13 51
IV.ESML.HHZ. 2021-05-11T00:31:11.68 0.3 undecidable manual S 295 103.6185 98 -1.01 53
IV.MTTG.HHZ. 2021-05-11T00:31:09.16 0.3 undecidable manual S 346 89.1441 100 0.31 67
IV.HLNI.HHZ. 2021-05-11T00:31:09.72 0.6 undecidable manual S 279 95.8263 99 -0.9 37
IV.SOI.EHN. 2021-05-11T00:31:09.32 0.6 undecidable manual S 6 94.6386 99 -1 36
IV.CPTP.HHZ. 2021-05-11T00:31:08.92 0.3 undecidable manual P 278 158.7189 54 1.49 35
IV.ILOS.HHZ. 2021-05-11T00:31:07.98 0.3 undecidable manual P 327 161.3163 54 0.23 58
IV.MSFR.HHZ. 2021-05-11T00:31:06.56 0.3 undecidable manual P 307 149.1396 54 0.32 60
IV.HAVL.HHZ. 2021-05-11T00:31:06.16 0.6 undecidable manual S 248 78.6657 102 0.05 50
IV.JOPP.HHZ. 2021-05-11T00:31:06.32 0.3 undecidable manual P 358 153.5352 54 -0.46 58
IV.IVPL.HHZ. 2021-05-11T00:31:06.77 0.1 undecidable manual P 327 153.3354 54 0.01 84
IV.HCRL.HHZ. 2021-05-11T00:31:06.57 0.6 undecidable manual S 275 80.9523 101 -0.15 48
IV.RAFF.HHZ. 2021-05-11T00:31:05.11 0.1 undecidable manual P 270 139.9488 54 0.02 88
IV.SSY.HHZ. 2021-05-11T00:31:05.55 0.3 undecidable manual S 265 77.4669 102 -0.25 71
IV.MCPD.HHZ. 2021-05-11T00:31:05.71 0.3 undecidable manual P 313 145.8429 54 -0.12 64
IV.CROCE.HHZ. 2021-05-11T00:31:04.45 0.1 undecidable manual P 251 132.3675 54 0.3 84
IV.GALF.HHZ. 2021-05-11T00:31:04.85 0.6 undecidable manual P 294 132.9669 54 0.62 38
IV.PLAC.HHE. 2021-05-11T00:31:04.57 0.3 undecidable manual P 17 142.6461 54 -0.86 51
IV.MUCR.HHZ. 2021-05-11T00:31:03.92 0.3 undecidable manual P 314 130.869 54 -0.05 67
IV.HAGA.HHZ. 2021-05-11T00:31:03.46 0.6 undecidable manual S 276 70.1742 103 -0.45 46
IV.HVIT.HHZ. 2021-05-11T00:31:03.09 0.1 undecidable manual P 259 128.6712 97 -0.57 78
IV.EPZF.HHZ. 2021-05-11T00:31:02.40 0.1 undecidable manual P 305 116.6943 97 0.57 80
IV.MSRU.HHZ. 2021-05-11T00:31:02.18 0.3 undecidable manual P 342 121.5894 97 -0.4 63
IV.ESCV.HHZ. 2021-05-11T00:31:01.85 0.3 undecidable manual P 301 115.1958 98 0.24 66
IV.MPNC.HHZ. 2021-05-11T00:31:01.11 0.1 undecidable manual P 333 114.7962 98 -0.44 85
IV.EMSG.HHZ. 2021-05-11T00:31:01.04 0.3 undecidable manual P 307 109.9122 98 0.25 66
IV.HMDC.HHZ. 2021-05-11T00:31:00.02 0.1 positive manual P 254 107.0151 98 -0.34 87
IV.EMNR.HHZ. 2021-05-11T00:31:00.37 0.1 negative manual P 309 104.3178 98 0.43 86
IV.ESVO.HHE. 2021-05-11T00:31:00.72 0.6 undecidable manual P 305 107.0151 98 0.37 43
IV.EPIT.HHZ. 2021-05-11T00:31:00.13 0.3 negative manual P 310 101.8203 99 0.57 62
IV.ECHR.HHE. 2021-05-11T00:31:00.06 0.1 negative manual P 300 104.4177 98 0.1 92
IV.ECZM.HHN. 2021-05-11T00:31:00.96 0.3 undecidable manual P 302 107.6145 98 0.51 63
IV.HVZN.HHZ. 2021-05-11T00:31:00.38 0.3 undecidable manual P 268 108.9132 98 -0.26 66
IV.SICLA.EHN. 2021-05-11T00:31:00.94 0.6 undecidable manual P 350 116.2947 97 -0.83 37
MN.CEL.HHZ. 2021-05-11T00:31:00.89 0.6 undecidable manual P 358 115.0959 98 -0.69 39
IV.EMPL.HHZ. 2021-05-11T00:30:59.72 0.3 undecidable manual P 301 99.7224 99 0.49 64
IV.AIO.HHZ. 2021-05-11T00:30:59.73 0.1 undecidable manual P 323 103.9182 98 -0.15 92
IV.ESML.HHZ. 2021-05-11T00:30:59.67 0.3 undecidable manual P 295 103.6185 98 -0.17 69
IV.HPAC.HHZ. 2021-05-11T00:30:59.18 0.1 undecidable manual P 235 98.8233 99 0.08 95
IV.ENIC.HHZ. 2021-05-11T00:30:58.61 0.3 undecidable manual P 299 93.1401 100 0.37 67
IV.HLNI.HHZ. 2021-05-11T00:30:58.30 0.1 negative manual P 279 95.8263 99 -0.35 89
IV.EVRN.HHZ. 2021-05-11T00:30:58.22 0.3 undecidable manual P 306 88.0452 100 0.75 59
IV.EFIU.HHZ. 2021-05-11T00:30:58.10 0.1 undecidable manual P 314 90.1431 100 0.31 91
IV.EMFO.HHE. 2021-05-11T00:30:58.82 0.1 negative manual P 307 94.3389 99 0.4 88
IV.ESAL.HHZ. 2021-05-11T00:30:58.78 0.3 undecidable manual P 310 92.6406 100 0.62 62
IV.MTTG.HHZ. 2021-05-11T00:30:57.59 0.1 undecidable manual P 346 89.1441 100 -0.04 97
IV.SOI.EHN. 2021-05-11T00:30:57.99 0.3 undecidable manual P 6 94.6386 99 -0.49 66
IV.HAVL.HHZ. 2021-05-11T00:30:56.17 0.1 positive manual P 248 78.6657 102 0.13 98
IV.HCRL.HHZ. 2021-05-11T00:30:56.55 0.1 positive manual P 275 80.9523 101 0.16 96
IV.SSY.HHZ. 2021-05-11T00:30:55.88 0.1 undecidable manual P 265 77.4669 102 0.01 99
IV.HSRS.HNN. 2021-05-11T00:30:54.22 0.3 undecidable manual P 257 65.6898 104 0.12 75
IV.HAGA.HHZ. 2021-05-11T00:30:54.83 0.1 undecidable manual P 276 70.1742 103 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HAGA.HHE. ML:2.1 0.00020700000000000002 0.64 AML other m 2021-05-11T00:31:06.62
IV.HAVL.HHE. ML:2.5 0.0004615 1.24 AML other m 2021-05-11T00:31:07.63
IV.HAGA.HHN. ML:2.1 0.000214 0.58 AML other m 2021-05-11T00:31:09.26
IV.SSY.HHN. ML:3.0 0.001285 1.02 AML other m 2021-05-11T00:31:11.57
IV.HAVL.HHN. ML:2.6 0.0006445 0.38 AML other m 2021-05-11T00:31:11.08
IV.MTTG.HHN. ML:2.0 0.00010545 0.42 AML other m 2021-05-11T00:31:11.48
IV.HCRL.HHE. ML:2.5 0.000383 0.5 AML other m 2021-05-11T00:31:11.66
IV.HCRL.HHN. ML:2.3 0.000246 0.8 AML other m 2021-05-11T00:31:12.57
IV.ESAL.HHN. ML:2.3 0.000195 0.32 AML other m 2021-05-11T00:31:12.30
IV.ENIC.HHN. ML:2.5 0.0003305 0.34 AML other m 2021-05-11T00:31:12.53
IV.SSY.HHE. ML:2.6 0.000639 0.6 AML other m 2021-05-11T00:31:12.65
IV.ILOS.HNE. ML:2.8 0.00028300000000000005 0.26 AML other m 2021-05-11T00:31:13.15
IV.ILOS.HHE. ML:2.8 0.0003075 0.28 AML other m 2021-05-11T00:31:13.17
IV.ESML.HHE. ML:2.3 0.000186 0.94 AML other m 2021-05-11T00:31:13.70
IV.AIO.HHE. ML:2.0 0.00008824999999999999 1.02 AML other m 2021-05-11T00:31:13.83
IV.HMDC.HNE. ML:2.5 0.000298 0.92 AML other m 2021-05-11T00:31:13.84
IV.HMDC.HHE. ML:2.6 0.00034899999999999997 0.94 AML other m 2021-05-11T00:31:13.84
IV.HMDC.HNN. ML:2.5 0.00027800000000000004 1.22 AML other m 2021-05-11T00:31:14.19
IV.EVRN.HHE. ML:2.4 0.00028100000000000005 0.54 AML other m 2021-05-11T00:31:14.43
IV.EVRN.HNE. ML:2.4 0.000288 0.52 AML other m 2021-05-11T00:31:14.70
IV.EVRN.HHN. ML:2.4 0.000308 0.52 AML other m 2021-05-11T00:31:14.58
IV.EVRN.HNN. ML:2.5 0.0003345 0.52 AML other m 2021-05-11T00:31:14.58
IV.AIO.HHN. ML:2.3 0.000176 0.3 AML other m 2021-05-11T00:31:14.60
IV.EMPL.HHN. ML:2.6 0.0004165 0.24 AML other m 2021-05-11T00:31:14.81
IV.HMDC.HHN. ML:2.5 0.00027449999999999995 1.58 AML other m 2021-05-11T00:31:15.84
IV.HVZN.HHN. ML:2.9 0.0006805 0.6 AML other m 2021-05-11T00:31:15.36
IV.MTTG.HHE. ML:2.0 0.00011360000000000001 0.5 AML other m 2021-05-11T00:31:16.43
MN.CEL.HNN. ML:2.3 0.00016035 0.38 AML other m 2021-05-11T00:31:16.54
IV.HPAC.HHN. ML:2.6 0.000376 1.02 AML other m 2021-05-11T00:31:17.46
MN.CEL.HHE. ML:2.5 0.000225 0.5 AML other m 2021-05-11T00:31:17.58
MN.CEL.HNE. ML:2.5 0.00023315 0.28 AML other m 2021-05-11T00:31:17.58
MN.CEL.HHN. ML:2.3 0.00013925 0.68 AML other m 2021-05-11T00:31:17.50
IV.MSRU.HHE. ML:2.6 0.000248 0.9 AML other m 2021-05-11T00:31:17.48
IV.ESCV.HHN. ML:2.7 0.00035299999999999996 1.66 AML other m 2021-05-11T00:31:18.00
IV.HPAC.HHE. ML:2.4 0.000258 0.86 AML other m 2021-05-11T00:31:18.64
IV.HVZN.HHE. ML:2.8 0.0005215 0.74 AML other m 2021-05-11T00:31:18.45
IV.HVZN.HNE. ML:2.8 0.00048699999999999997 0.52 AML other m 2021-05-11T00:31:18.45
IV.MSRU.HHN. ML:2.4 0.0001715 0.48 AML other m 2021-05-11T00:31:18.50
IV.ESML.HHN. ML:2.3 0.00016399999999999997 0.3 AML other m 2021-05-11T00:31:18.36
IV.EPIT.HHN. ML:2.6 0.00038749999999999993 0.38 AML other m 2021-05-11T00:31:18.68
IV.EPZF.HHE. ML:2.8 0.0005124999999999999 0.34 AML other m 2021-05-11T00:31:19.00
IV.MPNC.HHN. ML:2.5 0.000264 0.84 AML other m 2021-05-11T00:31:19.49
IV.EPZF.HHN. ML:2.8 0.0004185 0.66 AML other m 2021-05-11T00:31:19.28
IV.EPIT.HHE. ML:2.3 0.00019700000000000002 1.5 AML other m 2021-05-11T00:31:19.20
IV.HVIT.HHN. ML:2.7 0.00032199999999999997 0.44 AML other m 2021-05-11T00:31:20.01
IV.EMPL.HHE. ML:2.7 0.000438 0.5 AML other m 2021-05-11T00:31:20.44
IV.MPNC.HHE. ML:2.5 0.00022649999999999998 0.44 AML other m 2021-05-11T00:31:20.33
IV.HVIT.HHE. ML:2.5 0.00020750000000000003 1.26 AML other m 2021-05-11T00:31:20.15
IV.CROCE.HHE. ML:2.4 0.00016399999999999997 1.16 AML other m 2021-05-11T00:31:21.06
IV.MUCR.HHE. ML:2.4 0.00017449999999999999 1.64 AML other m 2021-05-11T00:31:21.90
IV.EMSG.HHE. ML:2.6 0.000301 0.28 AML other m 2021-05-11T00:31:21.02
IV.ESAL.HHE. ML:2.4 0.0002635 1.64 AML other m 2021-05-11T00:31:21.98
IV.MUCR.HHN. ML:2.4 0.00015050000000000003 0.86 AML other m 2021-05-11T00:31:21.56
IV.EMSG.HHN. ML:2.5 0.00027749999999999997 0.36 AML other m 2021-05-11T00:31:21.73
IV.ENIC.HHE. ML:2.5 0.00036199999999999996 0.32 AML other m 2021-05-11T00:31:22.16
IV.RAFF.HHN. ML:2.4 0.0001325 0.52 AML other m 2021-05-11T00:31:22.99
IV.RAFF.HHE. ML:2.6 0.00020150000000000002 0.46 AML other m 2021-05-11T00:31:23.54
IV.ESCV.HHE. ML:2.6 0.00030000000000000003 0.32 AML other m 2021-05-11T00:31:23.59
IV.GALF.HHE. ML:2.8 0.00041700000000000005 0.36 AML other m 2021-05-11T00:31:25.32
IV.GALF.HHN. ML:2.7 0.0003095 0.42 AML other m 2021-05-11T00:31:25.15
IV.HVZN.HNN. ML:3.1 0.001145 0.42 AML other m 2021-05-11T00:31:25.72
IV.MCPD.HHN. ML:2.4 0.000135 0.44 AML other m 2021-05-11T00:31:25.53
IV.MCPD.HHE. ML:2.3 0.0000963 1.06 AML other m 2021-05-11T00:31:26.31
IV.IVPL.HHN. ML:3.0 0.0004795 0.42 AML other m 2021-05-11T00:31:26.61
IV.CROCE.HHN. ML:2.3 0.0001171 0.46 AML other m 2021-05-11T00:31:27.48
IV.MSFR.HHE. ML:2.0 0.000046299999999999994 1.18 AML other m 2021-05-11T00:31:28.64
IV.MSFR.HHN. ML:2.0 0.00004514999999999999 1.2 AML other m 2021-05-11T00:31:28.26
IV.IVPL.HHE. ML:3.0 0.0005110000000000001 0.44 AML other m 2021-05-11T00:31:28.75
IV.JOPP.HHE. ML:2.2 0.00007675000000000001 0.6 AML other m 2021-05-11T00:31:29.30
IV.JOPP.HHN. ML:2.2 0.00007515 1.56 AML other m 2021-05-11T00:31:32.15
IV.IFIL.HHN. ML:2.7 0.00016299999999999998 0.5 AML other m 2021-05-11T00:31:33.69
IV.IFIL.HHE. ML:3.0 0.000299 0.3 AML other m 2021-05-11T00:31:36.21
IV.ILOS.HNN. ML:3.0 0.0004935 0.56 AML other m 2021-05-11T00:31:40.58
IV.ILOS.HHN. ML:3.1 0.0005095 0.52 AML other m 2021-05-11T00:31:40.59
IV.IACL.HHE. ML:2.3 0.00006130000000000001 1.46 AML other m 2021-05-11T00:31:45.11
IV.IACL.HHN. ML:2.4 0.00007875 0.44 AML other m 2021-05-11T00:31:45.86
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
Waveforms Seismic signals in miniseed + resp format Download