Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mw 2.3 on date 22-10-2015 and time 13:25:25 (Italy) in region 6 km W Linguaglossa (CT)

A magnitude Mw 2.3 earthquake occured in region: 6 km W Linguaglossa (CT), on

  • 22-10-2015 11:25:25 (UTC)
  • 22-10-2015 13:25:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8390, 15.0720 at 0 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Linguaglossa CT 6 5403 5403
Castiglione di Sicilia CT 7 3215 8618
Moio Alcantara ME 7 717 9335
Francavilla di Sicilia ME 9 3945 13280
Malvagna ME 9 733 14013
Piedimonte Etneo CT 10 3963 17976
Motta Camastra ME 11 845 18821
Roccella Valdemone ME 12 666 19487
Randazzo CT 12 10900 30387
Sant'Alfio CT 12 1582 31969
Santa Domenica Vittoria ME 13 980 32949
Fiumefreddo di Sicilia CT 13 9623 42572
Milo CT 13 1087 43659
Gaggi ME 13 3184 46843
Calatabiano CT 14 5308 52151
Mascali CT 14 14282 66433
Graniti ME 15 1492 67925
Giarre CT 16 27659 95584
Zafferana Etnea CT 16 9517 105101
Riposto CT 17 14838 119939
Santa Venerina CT 18 8592 128531
Maletto CT 18 3920 132451
Giardini-Naxos ME 18 9415 141866
Castelmola ME 18 1088 142954
Fondachelli-Fantina ME 19 1019 143973
Taormina ME 19 10960 154933
Mongiuffi Melia ME 19 600 155533

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NW of Acireale (52622 inhabitants)
37 Km N of Catania (314555 inhabitants)
58 Km SW of Messina (238439 inhabitants)
59 Km SW of Reggio di Calabria (183035 inhabitants)
89 Km N of Siracusa (122291 inhabitants)
97 Km E of Caltanissetta (63360 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 2015-10-22
11:25:25		 37.8392 15.0718 1 2016-02-19
13:22:16		 Bollettino Sismico Italiano INGV 23237491
Reviewed
Rev200 		Mw 2.3 2015-10-22
11:25:23		 37.82 15.07 1 2016-01-25
15:45:07		 Sala Operativa INGV-OE (Catania) 21909281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-10-22 11:25:25 ± 0.13
Latitude 37.8392 ± 0.0081
Longitude 15.0718 ± 0.0102
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 23237491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1070
Semi-minor axis of confidence ellipse (meter) 650
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 138
Circular confidence region, given by single value of horizontal uncertainty (meter) 1070.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.09803
Epicentral distance of station farthest from the epicenter (degree) 0.52161
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

Mw:2.3

Field Value
Value 2.3
Uncertainty 0.0
Num. used stations
Type of magnitude Mw
Reference to an origin 21909281
Agency INGV
Autore Sala Operativa INGV-OE (Catania)
Time of creation (UTC) 2015-10-22 11:45:51

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 23237491
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2016-01-25 15:44:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTTG.HHE. 2015-10-22T11:25:37.12 0.6 undecidable manual P 72 57.8976 90 0.41 44
IV.CAGR.HHE. 2015-10-22T11:25:37.09 1.0 undecidable manual P 245 55.6998 91 0.82 19
IV.MSFR.HHZ. 2015-10-22T11:25:34.23 0.3 undecidable manual P 297 47.2194 91 -0.35 68
IV.GALF.HHZ. 2015-10-22T11:25:34.90 0.6 undecidable manual P 252 46.5201 91 0.45 44
IV.NOV.HHZ. 2015-10-22T11:25:32.70 0.6 undecidable manual S 15 21.6672 91 0.06 50
IV.MPNC.HHZ. 2015-10-22T11:25:32.93 0.3 undecidable manual P 36 42.0246 91 -0.61 64
IV.ESML.HHZ. 2015-10-22T11:25:31.98 0.6 undecidable manual P 215 29.748 91 0.9 38
IV.MUCR.HHZ. 2015-10-22T11:25:30.94 0.3 undecidable manual P 323 28.4493 91 0.12 74
IV.MCSR.HHZ. 2015-10-22T11:25:30.81 0.1 undecidable manual P 29 28.5492 91 -0.04 100
IV.NOV.HHZ. 2015-10-22T11:25:29.87 0.1 undecidable manual P 15 21.6672 91 0.41 94
IV.EMSG.HHZ. 2015-10-22T11:25:29.36 0.6 undecidable manual S 259 10.878 93 0.46 47
IV.AIO.HHZ. 2015-10-22T11:25:29.13 0.3 undecidable manual P 44 20.3685 91 -0.06 76
IV.EPOZ.HHZ. 2015-10-22T11:25:29.45 0.3 undecidable manual P 151 21.1677 91 0.09 75
IV.ESLN.HHZ. 2015-10-22T11:25:28.03 0.3 undecidable manual P 208 18.2706 92 -0.75 63
IV.EPZF.HHZ. 2015-10-22T11:25:28.65 0.1 undecidable manual P 265 18.87 92 -0.26 97
IV.EMSG.HHZ. 2015-10-22T11:25:27.07 0.1 positive manual P 259 10.878 93 -0.23 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AIO.HHE. ML:1.9 0.0006575 0.62 AML other m 2015-10-22T11:25:36.82
IV.AIO.HHN. ML:2.0 0.0009165 0.62 AML other m 2015-10-22T11:25:37.22
IV.EMSG.HHN. ML:2.7 0.00967 0.66 AML other m 2015-10-22T11:25:43.14
IV.EMSG.HHE. ML:2.9 0.01275 0.7 AML other m 2015-10-22T11:25:50.24
IV.EPZF.HHN. ML:2.7 0.00418 1.58 AML other m 2015-10-22T11:25:44.67
IV.EPZF.HHE. ML:2.5 0.00269 0.72 AML other m 2015-10-22T11:25:54.97
IV.MCSR.HHN. ML:2.2 0.0009699999999999999 0.98 AML other m 2015-10-22T11:25:43.62
IV.MCSR.HHE. ML:2.1 0.000776 1.34 AML other m 2015-10-22T11:25:41.34
IV.NOV.HHE. ML:2.0 0.000883 0.48 AML other m 2015-10-22T11:25:37.15
IV.NOV.HHN. ML:2.1 0.0010945 0.46 AML other m 2015-10-22T11:25:38.85
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