Earthquake with magnitude of ML 2.2 on date 07-10-2015 and time 15:22:14 (Italy) 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) 37.72, 15.2 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.

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

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the last three days (72 hours)

Earthquakes of the last three days (72 hours) *

This map reports the earthquake epicenters located in the past 72 hours (3 days) from the time this page has been generated. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the last 90 days

Earthquakes of the last 90 days *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Earthquakes since 1985

Earthquakes since 1985 *

This map reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows the epicenter of the current earthquake.
Significant earthquakes since 1000 AD until 2006

Significant earthquakes since 1000 AD until 2006 *

This map shows the epicenters of the historical earthquakes catalogue CPT11 (Catalogo Parametrico dei Terremoti Italiani, 2011 version) with estimated magnitude ≥ 5.0 since 1000 AD until 2006. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire *

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 1000 ML 2.2 2015-10-07
13:22:14
37.72 15.2 1 2016-02-19
13:22:16
Bollettino Sismico Italiano INGV 22429311
Rev 100 ML 2.2 2015-10-07
13:22:14
37.73 15.19 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 37.72 ± 0.00
Longitude 15.20 ± 0.01
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
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
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 Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2015-10-07T13:22:44.50 0.3 undecidable manual S 233 0.8301 50 0.48 62
IV.HAVL.HHZ. 2015-10-07T13:22:42.60 0.3 undecidable manual S 185 0.7644 50 0.52 62
IV.SSY.HHZ. 2015-10-07T13:22:36.40 0.6 undecidable manual S 190 0.5729 50 0 48
IV.HAGA.HHE. 2015-10-07T13:22:32.30 0.6 undecidable manual S 184 0.438 91 0.69 41
IV.RAFF.HHZ. 2015-10-07T13:22:31.09 0.1 undecidable manual P 233 0.8301 50 -0.56 80
IV.SOI.EHN. 2015-10-07T13:22:31.17 1.0 undecidable manual P 62 0.7608 50 0.7 19
IV.HLNI.HHZ. 2015-10-07T13:22:31.40 0.6 undecidable manual S 215 0.4542 91 -0.83 39
IV.MUCR.HHZ. 2015-10-07T13:22:30.60 0.6 undecidable manual S 322 0.4101 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 0.7644 50 -0.56 61
IV.MSRU.HHE. 2015-10-07T13:22:27.57 0.3 undecidable manual P 24 0.5945 50 -0.04 71
IV.MCSR.HHE. 2015-10-07T13:22:27.60 0.6 undecidable manual S 4 0.3435 91 -0.36 47
IV.NOV.HHZ. 2015-10-07T13:22:26.70 0.6 undecidable manual S 351 0.3094 92 0.04 50
IV.EPZF.HHZ. 2015-10-07T13:22:26.20 0.6 undecidable manual S 291 0.2878 92 0.36 47
IV.SSY.HHZ. 2015-10-07T13:22:26.82 0.1 undecidable manual P 190 0.5729 50 -0.42 88
IV.AGST.EHE. 2015-10-07T13:22:25.92 0.3 undecidable manual P 177 0.4658 91 0.83 58
IV.HAGA.HHE. 2015-10-07T13:22:24.47 0.3 undecidable manual P 184 0.438 91 -0.01 74
IV.HLNI.HHZ. 2015-10-07T13:22:24.12 0.3 undecidable manual P 215 0.4542 91 -0.71 61
IV.MPNC.HHN. 2015-10-07T13:22:24.57 0.3 undecidable manual P 16 0.4416 91 0.02 74
IV.EMSG.HHZ. 2015-10-07T13:22:23.40 0.6 undecidable manual S 297 0.2194 92 0.19 50
IV.MUCR.HHZ. 2015-10-07T13:22:23.41 0.1 undecidable manual P 322 0.4101 91 -0.45 91
IV.MCSR.HHE. 2015-10-07T13:22:22.37 0.3 undecidable manual P 4 0.3435 91 0 76
IV.NOV.HHZ. 2015-10-07T13:22:21.81 0.3 undecidable manual P 351 0.3094 92 0.19 73
IV.ESLN.HHZ. 2015-10-07T13:22:21.50 0.3 undecidable manual S 261 0.179 93 -0.15 76
IV.EPZF.HHZ. 2015-10-07T13:22:21.52 0.3 undecidable manual P 291 0.2878 92 0.37 71
IV.ESML.HHZ. 2015-10-07T13:22:21.07 0.3 undecidable manual P 248 0.2725 92 0.27 73
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 0.2194 92 0.4 95
IV.ESLN.HHZ. 2015-10-07T13:22:18.52 0.1 undecidable manual P 261 0.179 93 -0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AIO.HHE. ML:2 0.0005075 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 0.0002355 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 8.43E-5 0.94 AML other m 2015-10-07T13:22:33.51
IV.HLNI.HHN. ML:1.5 8.78E-5 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 0.0002305 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
Focal Mechanism in the area
Focal Mechanisms

Focal Mechanisms *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol scales with the calculated moment magnitude, Mw.
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 full SEED format Download