Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 08-08-2021 and time 06:00:23 (Italy) in region Costa Catanese (Catania)

A magnitude ML 2.3 earthquake occured in region: Costa Catanese (Catania), on

  • 08-08-2021 04:00:23 (UTC)
  • 08-08-2021 06:00:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6080, 15.5050 at 18 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
30 Km E of Acireale (52622 inhabitants)
39 Km E of Catania (314555 inhabitants)
57 Km S of Reggio di Calabria (183035 inhabitants)
64 Km N of Siracusa (122291 inhabitants)
65 Km S of Messina (238439 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 2.3 2021-08-08
04:00:23		 37.6082 15.5047 18 2021-12-29
11:12:52		 Bollettino Sismico Italiano INGV 97817191
Reviewed
Rev100 		ML 2.3 2021-08-08
04:00:23		 37.6165 15.4732 10 2021-08-08
04:16:13		 Sala Sismica INGV-Roma 93820411
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-08 04:00:23 ± 0.15
Latitude 37.6082 ± 0.0054
Longitude 15.5047 ± 0.0136
Depth (km) 18 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97817191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1009
Semi-minor axis of confidence ellipse (meter) 557
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 93
Circular confidence region, given by single value of horizontal uncertainty (meter) 1010.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 161
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 45
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) 0.25811
Epicentral distance of station farthest from the epicenter (degree) 1.30492
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 35
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 41
Type of magnitude ML
Reference to an origin 97817191
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-17 15:56:05

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 40
Type of magnitude ML
Reference to an origin 93820411
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-08 04:16:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ISPIC.EHZ. 2021-08-08T04:00:55.32 0.6 undecidable manual S 210 106.116 94 0.96 35
IV.HAVL.HHZ. 2021-08-08T04:00:47.48 0.6 undecidable manual S 205 79.4649 96 0.19 48
IV.CLTA.HHZ. 2021-08-08T04:00:47.61 1.0 undecidable manual P 250 144.8439 93 0.32 20
IV.SSY.HHZ. 2021-08-08T04:00:43.28 0.3 undecidable manual S 217 62.7927 98 0.42 70
IV.HLNI.HHZ. 2021-08-08T04:00:42.72 0.3 undecidable manual S 243 62.6928 98 -0.12 74
IV.NOV.HHE. 2021-08-08T04:00:41.59 0.6 undecidable manual S 325 56.5989 99 0.35 48
IV.ISPIC.EHZ. 2021-08-08T04:00:41.12 0.6 undecidable manual P 210 106.116 94 -0.21 45
IV.RAFF.HHZ. 2021-08-08T04:00:41.61 0.1 negative manual P 247 109.3128 94 -0.22 89
IV.HCRL.HHZ. 2021-08-08T04:00:41.39 0.6 undecidable manual S 229 55.0005 99 0.57 46
IV.HMDC.HHZ. 2021-08-08T04:00:39.74 0.6 undecidable manual P 222 96.126 95 -0.06 47
IV.MSFR.HHZ. 2021-08-08T04:00:39.35 0.6 undecidable manual P 301 92.9403 95 0.04 48
IV.AIO.HHZ. 2021-08-08T04:00:39.70 0.3 undecidable manual S 329 46.8198 101 1.05 56
IV.HAGA.HHZ. 2021-08-08T04:00:39.10 0.3 undecidable manual S 221 47.2194 101 0.33 74
IV.GALF.HHZ. 2021-08-08T04:00:38.19 0.6 undecidable manual P 278 83.1501 96 0.38 45
IV.MCPD.HHZ. 2021-08-08T04:00:38.44 0.3 undecidable manual P 310 88.3449 95 -0.17 70
IV.HAVL.HHZ. 2021-08-08T04:00:37.33 0.3 undecidable manual P 205 79.4649 96 0.09 73
IV.HVZN.HHZ. 2021-08-08T04:00:37.62 0.3 undecidable manual P 236 84.3489 95 -0.37 68
IV.MUCR.HHZ. 2021-08-08T04:00:36.33 0.3 undecidable manual P 311 73.371 96 0.02 75
IV.MSRU.HHE. 2021-08-08T04:00:36.43 0.3 undecidable manual P 0 72.7716 96 0.22 72
IV.SOI.EHE. 2021-08-08T04:00:36.85 1.0 undecidable manual P 43 70.5738 97 0.97 18
IV.MILZ.HHN. 2021-08-08T04:00:36.81 0.3 undecidable manual P 342 77.367 96 -0.11 73
IV.EFIU.HHZ. 2021-08-08T04:00:35.20 0.6 undecidable manual S 308 32.745 108 0.18 52
IV.EPZF.HHZ. 2021-08-08T04:00:35.07 0.3 undecidable manual P 293 61.6938 98 0.55 68
IV.MPNC.HHE. 2021-08-08T04:00:34.43 0.6 undecidable manual P 347 61.1943 98 -0.02 51
IV.HLNI.HHZ. 2021-08-08T04:00:34.04 0.3 undecidable manual P 243 62.6928 98 -0.64 65
IV.HSRS.HNN. 2021-08-08T04:00:34.68 0.6 undecidable manual P 204 62.3931 98 0.05 51
IV.SSY.HHZ. 2021-08-08T04:00:34.57 0.3 undecidable manual P 217 62.7927 98 -0.12 75
IV.EPOZ.HHE. 2021-08-08T04:00:33.80 0.6 undecidable manual S 284 28.6491 111 -0.19 52
IV.HCRL.HHZ. 2021-08-08T04:00:33.35 0.1 undecidable manual P 229 55.0005 99 -0.16 100
IV.EMNR.HHZ. 2021-08-08T04:00:33.18 0.3 undecidable manual P 299 47.9187 101 0.75 64
IV.NOV.HHE. 2021-08-08T04:00:33.45 0.3 undecidable manual P 325 56.5989 99 -0.3 73
IV.MTTG.HHE. 2021-08-08T04:00:33.12 0.6 undecidable manual P 21 47.0196 101 0.82 41
IV.EMSG.HHZ. 2021-08-08T04:00:33.64 0.6 undecidable manual P 296 54.1014 99 0.27 49
IV.EPIT.HHZ. 2021-08-08T04:00:32.26 0.3 undecidable manual P 300 45.3213 102 0.22 76
IV.ENIC.HHZ. 2021-08-08T04:00:32.17 0.3 undecidable manual P 274 42.5241 103 0.56 70
IV.EMFO.HHE. 2021-08-08T04:00:31.18 0.3 undecidable manual P 291 39.0276 104 0.09 79
IV.ESPC.HHN. 2021-08-08T04:00:31.48 0.3 undecidable manual P 283 42.9237 103 -0.2 76
IV.HAGA.HHZ. 2021-08-08T04:00:31.99 0.3 undecidable manual P 221 47.2194 101 -0.34 73
IV.ECTS.HHE. 2021-08-08T04:00:31.52 0.6 undecidable manual P 312 45.3213 102 -0.52 47
IV.ECBD.HHN. 2021-08-08T04:00:31.51 0.3 undecidable manual P 298 41.3253 103 0.07 79
IV.AIO.HHZ. 2021-08-08T04:00:31.86 0.1 undecidable manual P 329 46.8198 101 -0.4 97
IV.ESAL.HHZ. 2021-08-08T04:00:30.29 0.3 undecidable manual P 297 36.3414 106 -0.4 74
IV.EFIU.HHZ. 2021-08-08T04:00:29.70 0.1 undecidable manual P 308 32.745 108 -0.46 98
IV.EVRN.HHZ. 2021-08-08T04:00:29.52 0.3 undecidable manual P 286 33.6441 107 -0.77 65
IV.EPOZ.HHE. 2021-08-08T04:00:28.83 0.1 undecidable manual P 284 28.6491 111 -0.74 89
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EVRN.HHN. ML:2.5 0.0011413635000000002 0.24 AML other m 2021-08-08T04:00:39.12
IV.EVRN.HNN. ML:2.4 0.001036 0.2112 AML other m 2021-08-08T04:00:39.12
IV.EVRN.HHE. ML:2.4 0.00105983625 0.2208 AML other m 2021-08-08T04:00:39.40
IV.HAGA.HHN. ML:2.0 0.00026909625 0.32 AML other m 2021-08-08T04:00:40.09
IV.EFIU.HHN. ML:2.3 0.0007624999999999999 1.24 AML other m 2021-08-08T04:00:40.96
IV.EVRN.HNE. ML:2.4 0.0010481535000000002 0.2304 AML other m 2021-08-08T04:00:41.56
IV.HAGA.HHE. ML:2.0 0.000263 0.3 AML other m 2021-08-08T04:00:42.18
IV.ENIC.HNN. ML:2.6 0.00110657545 0.3104 AML other m 2021-08-08T04:00:42.40
IV.HCRL.HHE. ML:2.1 0.00029538435 0.2016 AML other m 2021-08-08T04:00:43.49
IV.HCRL.HHN. ML:2.1 0.00027223545000000006 0.3616 AML other m 2021-08-08T04:00:43.67
IV.AIO.HHE. ML:2.1 0.00033712255 0.3808 AML other m 2021-08-08T04:00:44.15
IV.EFIU.HHE. ML:2.3 0.0007855 0.52 AML other m 2021-08-08T04:00:44.44
IV.ENIC.HHE. ML:2.6 0.001316 0.22 AML other m 2021-08-08T04:00:44.35
IV.ENIC.HNE. ML:2.7 0.001495 0.24 AML other m 2021-08-08T04:00:44.25
IV.AIO.HHN. ML:2.1 0.00035239905000000006 0.2976 AML other m 2021-08-08T04:00:44.40
IV.HLNI.HHN. ML:2.0 0.00019535275000000002 0.2784 AML other m 2021-08-08T04:00:45.13
IV.ENIC.HHN. ML:2.6 0.0011033490000000002 0.2624 AML other m 2021-08-08T04:00:45.22
IV.SSY.HHN. ML:2.8 0.0012549999999999998 0.3 AML other m 2021-08-08T04:00:45.76
IV.EPZF.HHN. ML:2.5 0.0006039708500000001 0.5024 AML other m 2021-08-08T04:00:46.30
IV.EPZF.HHE. ML:2.3 0.00042118185 0.3392 AML other m 2021-08-08T04:00:47.24
IV.SSY.HHE. ML:2.5 0.00066545275 0.4384 AML other m 2021-08-08T04:00:47.79
IV.MUCR.HHE. ML:2.0 0.0001665 0.56 AML other m 2021-08-08T04:00:48.28
IV.MCPD.HHN. ML:1.8 0.00006523601 0.3776 AML other m 2021-08-08T04:00:53.18
IV.HAVL.HHE. ML:2.3 0.000258 0.22 AML other m 2021-08-08T04:00:53.37
IV.HAVL.HHN. ML:2.3 0.00027232069999999996 0.24 AML other m 2021-08-08T04:00:54.71
IV.HMDC.HHN. ML:2.2 0.0001565 1 AML other m 2021-08-08T04:00:55.67
IV.MSFR.HHE. ML:1.4 0.000027412875000000005 0.3616 AML other m 2021-08-08T04:00:55.61
IV.MUCR.HHN. ML:1.9 0.000127 0.4 AML other m 2021-08-08T04:00:56.32
IV.HVZN.HHN. ML:2.5 0.0004145 0.36 AML other m 2021-08-08T04:00:56.64
IV.HVZN.HNN. ML:2.5 0.0003989568 0.3712 AML other m 2021-08-08T04:00:56.65
IV.HMDC.HNE. ML:2.1 0.00014163385 0.2784 AML other m 2021-08-08T04:00:57.00
IV.ISPIC.EHN. ML:2.3 0.00016874440000000002 0.5408 AML other m 2021-08-08T04:00:56.90
IV.ISPIC.EHE. ML:2.1 0.00010747585500000001 0.2816 AML other m 2021-08-08T04:00:57.02
IV.MSFR.HHN. ML:1.5 0.0000346442 0.4608 AML other m 2021-08-08T04:00:57.40
IV.ISPIC.HNN. ML:2.2 0.00015603489999999997 0.2912 AML other m 2021-08-08T04:00:57.62
IV.RAFF.HHE. ML:2.1 0.000101825155 0.3008 AML other m 2021-08-08T04:00:58.03
IV.MCPD.HHE. ML:1.9 0.00008485 0.46 AML other m 2021-08-08T04:00:58.24
IV.HVZN.HHE. ML:2.5 0.0003632413 0.3808 AML other m 2021-08-08T04:00:58.25
IV.HVZN.HNE. ML:2.4 0.0003372208 0.3904 AML other m 2021-08-08T04:00:58.25
IV.HMDC.HHE. ML:2.1 0.00012211855 0.4416 AML other m 2021-08-08T04:00:58.62
IV.RAFF.HHN. ML:2.0 0.00007415944 0.4608 AML other m 2021-08-08T04:01:00.99
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