Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 07-10-2015 and time 13:22:14 (UTC) in region 1 km SW Riposto (CT)

A magnitude ML 2.2 earthquake occured in region: 1 km SW Riposto (CT), on

  • 07-10-2015 13:22:14 (UTC)
  • 07-10-2015 15:22:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7220, 15.1980 at 1 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Riposto CT 1 14838 14838
Giarre CT 2 27659 42497
Mascali CT 4 14282 56779
Sant'Alfio CT 5 1582 58361
Santa Venerina CT 6 8592 66953
Milo CT 7 1087 68040
Fiumefreddo di Sicilia CT 8 9623 77663
Zafferana Etnea CT 9 9517 87180
Piedimonte Etneo CT 10 3963 91143
Calatabiano CT 12 5308 96451
Acireale CT 12 52622 149073
Aci Catena CT 14 29851 178924
Linguaglossa CT 14 5403 184327
Aci Sant'Antonio CT 14 17984 202311
Giardini-Naxos ME 15 9415 211726
Viagrande CT 15 8563 220289
Trecastagni CT 16 10910 231199
Gaggi ME 16 3184 234383
Aci Bonaccorsi CT 16 3524 237907
Taormina ME 16 10960 248867
Pedara CT 17 14102 262969
Castelmola ME 17 1088 264057
Valverde CT 17 7840 271897
San Giovanni la Punta CT 18 23060 294957
Aci Castello CT 19 18723 313680
San Gregorio di Catania CT 19 11966 325646
Graniti ME 19 1492 327138
Castiglione di Sicilia CT 19 3215 330353
Nicolosi CT 19 7463 337816
Tremestieri Etneo CT 20 20589 358405
Motta Camastra ME 20 845 359250

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km N of Acireale (52622 inhabitants)
26 Km NE of Catania (314555 inhabitants)
58 Km SW of Reggio di Calabria (183035 inhabitants)
61 Km SW of Messina (238439 inhabitants)
74 Km N of Siracusa (122291 inhabitants)
98 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 2.2 2015-10-07
13:22:14		 37.722 15.1982 1 2016-02-19
13:22:16		 Bollettino Sismico Italiano INGV 22429311
Reviewed
Rev100 		ML 2.2 2015-10-07
13:22:14		 37.7257 15.1877 4 2015-10-07
13:50:59		 Sala Sismica INGV-Roma 21734611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-10-07 13:22:14 ± 0.14
Latitude 37.7220 ± 0.0045
Longitude 15.1982 ± 0.0091
Depth (km) 1 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 22429311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 699
Semi-minor axis of confidence ellipse (meter) 430
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 86
Circular confidence region, given by single value of horizontal uncertainty (meter) 700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.83007
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 22429311
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-11-26 11:30:20

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 7
Type of magnitude ML
Reference to an origin 21734611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-10-07 13:50:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2015-10-07T13:22:44.50 0.3 undecidable manual S 233 92.1411 50 0.48 62
IV.HAVL.HHZ. 2015-10-07T13:22:42.60 0.3 undecidable manual S 185 84.8484 50 0.52 62
IV.SSY.HHZ. 2015-10-07T13:22:36.40 0.6 undecidable manual S 190 63.5919 50 0 48
IV.HAGA.HHE. 2015-10-07T13:22:32.30 0.6 undecidable manual S 184 48.618 91 0.69 41
IV.RAFF.HHZ. 2015-10-07T13:22:31.09 0.1 undecidable manual P 233 92.1411 50 -0.56 80
IV.SOI.EHN. 2015-10-07T13:22:31.17 1.0 undecidable manual P 62 84.4488 50 0.7 19
IV.HLNI.HHZ. 2015-10-07T13:22:31.40 0.6 undecidable manual S 215 50.4162 91 -0.83 39
IV.MUCR.HHZ. 2015-10-07T13:22:30.60 0.6 undecidable manual S 322 45.5211 91 0.06 49
IV.GMB.BHE. 2015-10-07T13:22:29.47 3.0 undecidable manual P 0.69 0
IV.HAVL.HHZ. 2015-10-07T13:22:29.97 0.3 undecidable manual P 185 84.8484 50 -0.56 61
IV.MSRU.HHE. 2015-10-07T13:22:27.57 0.3 undecidable manual P 24 65.9895 50 -0.04 71
IV.MCSR.HHE. 2015-10-07T13:22:27.60 0.6 undecidable manual S 4 38.1285 91 -0.36 47
IV.NOV.HHZ. 2015-10-07T13:22:26.70 0.6 undecidable manual S 351 34.3434 92 0.04 50
IV.EPZF.HHZ. 2015-10-07T13:22:26.20 0.6 undecidable manual S 291 31.9458 92 0.36 47
IV.SSY.HHZ. 2015-10-07T13:22:26.82 0.1 undecidable manual P 190 63.5919 50 -0.42 88
IV.AGST.EHE. 2015-10-07T13:22:25.92 0.3 undecidable manual P 177 51.7038 91 0.83 58
IV.HAGA.HHE. 2015-10-07T13:22:24.47 0.3 undecidable manual P 184 48.618 91 -0.01 74
IV.HLNI.HHZ. 2015-10-07T13:22:24.12 0.3 undecidable manual P 215 50.4162 91 -0.71 61
IV.MPNC.HHN. 2015-10-07T13:22:24.57 0.3 undecidable manual P 16 49.0176 91 0.02 74
IV.MUCR.HHZ. 2015-10-07T13:22:23.41 0.1 undecidable manual P 322 45.5211 91 -0.45 91
IV.EMSG.HHZ. 2015-10-07T13:22:23.40 0.6 undecidable manual S 297 24.3534 92 0.19 50
IV.MCSR.HHE. 2015-10-07T13:22:22.37 0.3 undecidable manual P 4 38.1285 91 0 76
IV.EPZF.HHZ. 2015-10-07T13:22:21.52 0.3 undecidable manual P 291 31.9458 92 0.37 71
IV.ESML.HHZ. 2015-10-07T13:22:21.07 0.3 undecidable manual P 248 30.2475 92 0.27 73
IV.NOV.HHZ. 2015-10-07T13:22:21.81 0.3 undecidable manual P 351 34.3434 92 0.19 73
IV.ESLN.HHZ. 2015-10-07T13:22:21.50 0.3 undecidable manual S 261 19.869 93 -0.15 76
IV.AIO.HHZ. 2015-10-07T13:22:20.74 3.0 undecidable manual P 0.19 0
IV.EMSG.HHZ. 2015-10-07T13:22:20.02 0.1 undecidable manual P 297 24.3534 92 0.4 95
IV.ESLN.HHZ. 2015-10-07T13:22:18.52 0.1 undecidable manual P 261 19.869 93 -0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AIO.HHE. ML:2.0 0.0005075 0.22 AML other m 2015-10-07T13:22:28.25
IV.AIO.HHN. ML:2.1 0.000718 1.12 AML other m 2015-10-07T13:22:28.17
IV.EMSG.HHN. ML:2.6 0.002505 0.32 AML other m 2015-10-07T13:22:28.57
IV.EMSG.HHE. ML:2.6 0.002565 0.82 AML other m 2015-10-07T13:22:27.58
IV.EPZF.HHE. ML:2.4 0.00115 0.36 AML other m 2015-10-07T13:22:28.64
IV.EPZF.HHN. ML:2.3 0.0009555 1.06 AML other m 2015-10-07T13:22:30.94
IV.HAVL.HHE. ML:2.3 0.00023549999999999998 0.24 AML other m 2015-10-07T13:22:44.94
IV.HAVL.HHN. ML:2.3 0.0002725 0.7 AML other m 2015-10-07T13:22:44.69
IV.HLNI.HHE. ML:1.5 0.0000843 0.94 AML other m 2015-10-07T13:22:33.51
IV.HLNI.HHN. ML:1.5 0.00008779999999999999 0.32 AML other m 2015-10-07T13:22:33.57
IV.MUCR.HHN. ML:1.9 0.0002485 0.4 AML other m 2015-10-07T13:22:35.14
IV.MUCR.HHE. ML:1.9 0.00023050000000000002 0.46 AML other m 2015-10-07T13:22:37.37
IV.SSY.HHE. ML:2.1 0.000223 0.32 AML other m 2015-10-07T13:22:39.15
IV.SSY.HHN. ML:2.4 0.0004665 0.42 AML other m 2015-10-07T13:22:43.73
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
Waveforms Seismic signals in miniseed + resp format Download