Earthquake with magnitude of ML 2.1 on date 30-04-2021 and time 01:08:36 (Italy) in region 1 km SW Giarre (CT)

A magnitude ML 2.1 earthquake occured in region: 1 km SW Giarre (CT), on

  • 29-04-2021 23:08:36 (UTC)
  • 30-04-2021 01:08:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.722, 15.174 at 19 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Giarre CT 1 27659 27659
Riposto CT 3 14838 42497
Sant'Alfio CT 4 1582 44079
Mascali CT 5 14282 58361
Santa Venerina CT 5 8592 66953
Milo CT 5 1087 68040
Zafferana Etnea CT 7 9517 77557
Fiumefreddo di Sicilia CT 9 9623 87180
Piedimonte Etneo CT 10 3963 91143
Acireale CT 12 52622 143765
Calatabiano CT 12 5308 149073
Aci Catena CT 13 29851 178924
Aci Sant'Antonio CT 13 17984 196908
Linguaglossa CT 14 5403 202311
Viagrande CT 14 8563 210874
Trecastagni CT 14 10910 221784
Aci Bonaccorsi CT 15 3524 225308
Pedara CT 15 14102 239410
Giardini-Naxos ME 16 9415 248825
Gaggi ME 16 3184 252009
Valverde CT 16 7840 259849
Taormina ME 17 10960 270809
San Giovanni la Punta CT 17 23060 293869
Nicolosi CT 18 7463 301332
Castelmola ME 18 1088 302420
San Gregorio di Catania CT 18 11966 314386
Tremestieri Etneo CT 18 20589 334975
Aci Castello CT 19 18723 353698
Castiglione di Sicilia CT 19 3215 356913
Motta Camastra ME 19 845 357758
Graniti ME 20 1492 359250
Mascalucia CT 20 31958 391208
Sant'Agata li Battiati CT 20 9479 400687

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km N of Acireale (52622 inhabitants)
25 Km N of Catania (314555 inhabitants)
60 Km SW of Reggio di Calabria (183035 inhabitants)
62 Km SW of Messina (238439 inhabitants)
74 Km N of Siracusa (122291 inhabitants)
97 Km NE of Ragusa (73313 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 2.1 2021-04-29
23:08:36
37.722 15.1743 19 2021-07-12
16:55:16
Bollettino Sismico Italiano INGV 91664091
Reviewed
Rev200
ML 1.6 2021-04-29
23:08:37
37.754 15.128 10 2021-06-21
16:17:14
Sala Operativa INGV_OE (Catania) 89613351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-29 23:08:36 ± 0.15
Latitude 37.7220 ± 0.0054
Longitude 15.1743 ± 0.0114
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 91664091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 812
Semi-minor axis of confidence ellipse (meter) 551
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 88
Circular confidence region, given by single value of horizontal uncertainty (meter) 810
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 144
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.04497
Epicentral distance of station farthest from the epicenter (degree) 0.81479
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 91664091
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-21 16:16:52

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 89613351
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-04-29 23:36:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2021-04-29T23:09:03.07 0.6 undecidable manual S 183 0.7635 96 1.19 29
IV.RAFF.HHZ. 2021-04-29T23:08:52.41 0.3 undecidable manual P 232 0.8148 96 0.29 62
IV.HAVL.HHZ. 2021-04-29T23:08:51.08 0.3 undecidable manual P 183 0.7635 96 -0.16 64
IV.SSY.HHZ. 2021-04-29T23:08:47.88 0.3 undecidable manual P 188 0.5693 99 -0.07 68
IV.AIO.HHZ. 2021-04-29T23:08:47.65 0.6 undecidable manual S 10 0.2536 115 0.5 45
IV.HLNI.HHZ. 2021-04-29T23:08:45.39 0.3 undecidable manual P 213 0.4434 102 -0.44 65
IV.EMNR.HHZ. 2021-04-29T23:08:45.47 0.6 undecidable manual S 309 0.1511 132 0.87 39
IV.HCRL.HHZ. 2021-04-29T23:08:45.86 0.3 undecidable manual P 194 0.4533 102 -0.13 69
IV.EMCN.HHN. 2021-04-29T23:08:44.60 0.6 undecidable manual S 302 0.1313 136 0.43 46
IV.EMPL.HHZ. 2021-04-29T23:08:44.10 0.6 undecidable manual S 255 0.1673 128 -0.86 39
IV.ECBD.HHN. 2021-04-29T23:08:44.00 0.6 undecidable manual S 310 0.0908 148 0.56 44
IV.ECTS.HHZ. 2021-04-29T23:08:44.71 0.6 undecidable manual S 345 0.1655 129 -0.22 47
IV.ENIC.HHZ. 2021-04-29T23:08:44.58 0.6 undecidable manual S 233 0.1511 132 -0.02 49
IV.ESML.HHZ. 2021-04-29T23:08:43.35 0.3 undecidable manual P 246 0.2554 115 0.58 64
IV.EFIU.HHZ. 2021-04-29T23:08:43.34 0.6 undecidable manual S 23 0.0728 153 0.16 49
IV.ESCV.HHZ. 2021-04-29T23:08:43.57 0.3 undecidable manual P 275 0.2851 111 0.34 68
IV.EMFO.HHE. 2021-04-29T23:08:43.30 0.6 undecidable manual S 282 0.0683 155 0.18 48
IV.EVRN.HHZ. 2021-04-29T23:08:43.06 0.6 undecidable manual S 223 0.045 163 0.19 48
IV.ESPC.HHN. 2021-04-29T23:08:43.23 0.6 undecidable manual S 256 0.1196 139 -0.73 42
IV.EPZF.HHZ. 2021-04-29T23:08:43.40 0.3 undecidable manual P 292 0.2707 113 0.39 68
IV.AIO.HHZ. 2021-04-29T23:08:42.73 0.3 undecidable manual P 10 0.2536 115 -0.01 72
IV.ESAL.HHZ. 2021-04-29T23:08:42.62 0.6 undecidable manual S 316 0.0459 163 -0.26 48
IV.EMSG.HHZ. 2021-04-29T23:08:42.00 0.3 undecidable manual P 299 0.2032 122 0.02 74
IV.ECTS.HHZ. 2021-04-29T23:08:41.17 0.1 undecidable manual P 345 0.1655 129 -0.28 93
IV.ENIC.HHZ. 2021-04-29T23:08:41.93 0.3 undecidable manual P 233 0.1511 132 0.67 63
IV.EMCN.HHN. 2021-04-29T23:08:41.02 0.1 undecidable manual P 302 0.1313 136 0.01 100
IV.EMNR.HHZ. 2021-04-29T23:08:41.13 0.3 undecidable manual P 309 0.1511 132 -0.12 73
IV.EMPL.HHZ. 2021-04-29T23:08:41.05 0.3 undecidable manual P 255 0.1673 128 -0.42 68
IV.EVRN.HHZ. 2021-04-29T23:08:40.22 0.3 undecidable manual P 223 0.045 163 -0.04 76
IV.ESPC.HHN. 2021-04-29T23:08:40.51 0.1 undecidable manual P 256 0.1196 139 -0.38 93
IV.EPIT.HHZ. 2021-04-29T23:08:40.89 0.3 undecidable manual P 314 0.1286 137 -0.1 73
IV.EPOZ.HHZ. 2021-04-29T23:08:40.49 0.3 undecidable manual P 167 0.0513 161 0.2 73
IV.ESAL.HHZ. 2021-04-29T23:08:40.00 0.3 undecidable manual P 316 0.0459 163 -0.26 72
IV.EFIU.HHZ. 2021-04-29T23:08:40.26 0.1 undecidable manual P 23 0.0728 153 -0.18 97
IV.ECBD.HHN. 2021-04-29T23:08:40.42 0.1 undecidable manual P 310 0.0908 148 -0.17 97
IV.EMFO.HHE. 2021-04-29T23:08:40.19 0.1 undecidable manual P 282 0.0683 155 -0.21 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EVRN.HNN. ML:2.7 0.0046 0.24 AML other m 2021-04-29T23:08:43.31
IV.EVRN.HNE. ML:2.7 0.004505 0.86 AML other m 2021-04-29T23:08:43.43
IV.EVRN.HHE. ML:2.8 0.00565 0.24 AML other m 2021-04-29T23:08:43.43
IV.ESAL.HHE. ML:2.6 0.003085 0.4 AML other m 2021-04-29T23:08:43.54
IV.EFIU.HHE. ML:1.9 0.0006695 1.34 AML other m 2021-04-29T23:08:43.85
IV.EFIU.HHN. ML:2 0.0009375 0.36 AML other m 2021-04-29T23:08:43.97
IV.ENIC.HHE. ML:2.2 0.0010245 1 AML other m 2021-04-29T23:08:45.08
IV.EPOZ.HHN. ML:2.1 0.00102 0.88 AML other m 2021-04-29T23:08:45.59
IV.ECTS.HHE. ML:2.5 0.00192 0.34 AML other m 2021-04-29T23:08:45.25
IV.ECTS.HHN. ML:2.2 0.0010845 1.02 AML other m 2021-04-29T23:08:45.22
IV.EMPL.HHN. ML:2.4 0.001435 0.16 AML other m 2021-04-29T23:08:46.46
IV.EPIT.HHN. ML:2.5 0.00213 0.36 AML other m 2021-04-29T23:08:46.49
IV.EPOZ.HHE. ML:2 0.000952 0.32 AML other m 2021-04-29T23:08:47.22
IV.ESAL.HHN. ML:2.2 0.00153 0.42 AML other m 2021-04-29T23:08:47.06
IV.EVRN.HHN. ML:2.5 0.00269 1.2 AML other m 2021-04-29T23:08:47.88
IV.ENIC.HHN. ML:2.2 0.001001 0.18 AML other m 2021-04-29T23:08:48.12
IV.EPIT.HHE. ML:2.3 0.001425 0.38 AML other m 2021-04-29T23:08:48.01
IV.AIO.HHE. ML:1.9 0.0003225 0.22 AML other m 2021-04-29T23:08:48.75
IV.AIO.HHN. ML:1.7 0.0002125 0.22 AML other m 2021-04-29T23:08:48.91
IV.EPZF.HHN. ML:2.1 0.000487 0.5 AML other m 2021-04-29T23:08:50.25
IV.ESML.HHE. ML:1.8 0.000279 0.92 AML other m 2021-04-29T23:08:50.65
IV.ESCV.HHE. ML:1.8 0.0002715 1.22 AML other m 2021-04-29T23:08:50.02
IV.EMPL.HHE. ML:2.2 0.0010455 0.18 AML other m 2021-04-29T23:08:51.24
IV.EPZF.HHE. ML:1.9 0.000339 0.32 AML other m 2021-04-29T23:08:51.58
IV.EMSG.HHE. ML:2.1 0.000608 0.6 AML other m 2021-04-29T23:08:51.88
IV.EMSG.HHN. ML:2.1 0.000691 0.84 AML other m 2021-04-29T23:08:52.49
IV.ESCV.HHN. ML:1.9 0.000304 0.24 AML other m 2021-04-29T23:08:53.26
IV.HCRL.HHE. ML:1.6 9.935E-5 0.94 AML other m 2021-04-29T23:08:54.51
IV.ESML.HHN. ML:1.5 0.000152 0.56 AML other m 2021-04-29T23:08:56.09
IV.HCRL.HHN. ML:1.6 9.865E-5 1.46 AML other m 2021-04-29T23:08:56.97
IV.HLNI.HHN. ML:1.5 8.07E-5 0.88 AML other m 2021-04-29T23:08:56.92
IV.HLNI.HHE. ML:1.3 5.735E-5 1.58 AML other m 2021-04-29T23:08:56.85
IV.SSY.HHE. ML:2 0.000204 0.34 AML other m 2021-04-29T23:09:00.21
IV.SSY.HHN. ML:2.4 0.000542 1.5 AML other m 2021-04-29T23:09:02.02
IV.HAVL.HHE. ML:2.2 0.000204 0.3 AML other m 2021-04-29T23:09:04.31
IV.RAFF.HHE. ML:2.1 0.0001362 1.56 AML other m 2021-04-29T23:09:06.04
IV.RAFF.HHN. ML:1.9 8.725E-5 0.36 AML other m 2021-04-29T23:09:06.14
IV.HAVL.HHN. ML:2.2 0.00022 0.42 AML other m 2021-04-29T23:09:09.55
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