Earthquake with magnitude of ML 2.1 on date 13-10-2018 and time 02:31:29 (Italy) in region 4 km NW Milo (CT)

A magnitude ML 2.1 earthquake occured in region: 4 km NW Milo (CT), on

  • 13-10-2018 00:31:29 (UTC)
  • 13-10-2018 02:31:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.74, 15.08 at 8 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
Milo CT 4 1087 1087
Zafferana Etnea CT 6 9517 10604
Sant'Alfio CT 6 1582 12186
Santa Venerina CT 8 8592 20778
Giarre CT 10 27659 48437
Mascali CT 11 14282 62719
Riposto CT 11 14838 77557
Piedimonte Etneo CT 12 3963 81520
Linguaglossa CT 12 5403 86923
Fiumefreddo di Sicilia CT 13 9623 96546
Trecastagni CT 14 10910 107456
Pedara CT 14 14102 121558
Viagrande CT 15 8563 130121
Nicolosi CT 15 7463 137584
Aci Sant'Antonio CT 16 17984 155568
Castiglione di Sicilia CT 16 3215 158783
Calatabiano CT 16 5308 164091
Aci Bonaccorsi CT 16 3524 167615
Acireale CT 17 52622 220237
Aci Catena CT 17 29851 250088
Ragalna CT 17 3924 254012
Moio Alcantara ME 17 717 254729
Gaggi ME 18 3184 257913
Francavilla di Sicilia ME 18 3945 261858
San Giovanni la Punta CT 19 23060 284918
Tremestieri Etneo CT 19 20589 305507
Randazzo CT 19 10900 316407
Valverde CT 19 7840 324247
Motta Camastra ME 19 845 325092
Mascalucia CT 19 31958 357050
Belpasso CT 19 28108 385158
San Pietro Clarenza CT 20 7743 392901
Malvagna ME 20 733 393634
San Gregorio di Catania CT 20 11966 405600

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NW of Acireale (52622 inhabitants)
27 Km N of Catania (314555 inhabitants)
64 Km SW of Reggio di Calabria (183035 inhabitants)
66 Km SW of Messina (238439 inhabitants)
78 Km N of Siracusa (122291 inhabitants)
94 Km E of Caltanissetta (63360 inhabitants)
96 Km NE of Ragusa (73313 inhabitants)
100 Km NE of Vittoria (63339 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.
Earthquakes since 1000 AD until 2014

Earthquakes since 1000 AD until 2014 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. 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 2.1 2018-10-13
00:31:29
37.74 15.08 9 2019-06-04
09:16:08
Bollettino Sismico Italiano INGV 65122541
Rev 100 ML 2.0 2018-10-13
00:31:30
37.74 15.07 9 2018-10-13
00:46:56
Sala Sismica INGV-Roma 61893111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-10-13 00:31:29 ± 0.11
Latitude 37.74 ± 0.01
Longitude 15.08 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 65122541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 910
Semi-minor axis of confidence ellipse (meter) 338
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 70
Circular confidence region, given by single value of horizontal uncertainty (meter) 910
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.05756
Epicentral distance of station farthest from the epicenter (degree) 0.76982
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 61893111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-10-13 00:46:56

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 13
Type of magnitude ML
Reference to an origin 65122541
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-05-06 10:26:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.AGST.EHZ. 2018-10-13T00:31:48.02 0.6 undecidable manual S 166 0.5018 50 0.17 45
IV.HAGA.HHN. 2018-10-13T00:31:46.67 0.6 undecidable manual S 172 0.4632 50 -0.04 47
IV.RAFF.HHZ. 2018-10-13T00:31:45.06 0.3 undecidable manual P 228 0.7698 50 0.19 63
IV.MUCR.HHZ. 2018-10-13T00:31:43.33 0.6 undecidable manual S 332 0.3381 50 0.33 45
IV.MNO.SHZ. 2018-10-13T00:31:42.85 0.6 undecidable manual S 302 0.3543 50 -0.62 41
IV.SSY.HHZ. 2018-10-13T00:31:41.40 0.6 undecidable manual P 180 0.5864 50 -0.33 43
IV.NOV.HHZ. 2018-10-13T00:31:41.65 0.6 undecidable manual S 10 0.2869 105 0.25 46
IV.MILZ.HHZ. 2018-10-13T00:31:41.32 0.3 undecidable manual P 13 0.5405 50 0.37 64
IV.GALF.HHZ. 2018-10-13T00:31:39.17 0.6 undecidable manual P 265 0.4047 50 0.55 42
IV.HAGA.HHN. 2018-10-13T00:31:39.08 0.3 undecidable manual P 172 0.4632 50 -0.55 62
IV.AGST.EHZ. 2018-10-13T00:31:39.65 0.3 undecidable manual P 166 0.5018 50 -0.64 60
IV.ESML.HHZ. 2018-10-13T00:31:38.59 0.6 undecidable manual S 231 0.2005 111 0.37 46
IV.MNO.SHZ. 2018-10-13T00:31:38.40 0.3 undecidable manual P 302 0.3543 50 0.64 61
IV.EPZF.HHZ. 2018-10-13T00:31:38.23 0.3 undecidable manual S 295 0.1907 112 0.36 69
IV.MUCR.HHZ. 2018-10-13T00:31:37.38 0.1 positive manual P 332 0.3381 50 -0.11 94
IV.NOV.HHZ. 2018-10-13T00:31:36.37 0.3 undecidable manual P 10 0.2869 105 -0.19 70
IV.EPZF.HHZ. 2018-10-13T00:31:34.03 0.1 negative manual P 295 0.1907 112 -0.49 89
IV.ESML.HHZ. 2018-10-13T00:31:34.83 0.1 undecidable manual P 231 0.2005 111 0.1 97
IV.EMCN.HNZ. 2018-10-13T00:31:33.55 0.6 undecidable manual S 324 0.0576 143 -0.1 50
IV.EPOZ.HHZ. 2018-10-13T00:31:33.77 0.1 undecidable manual P 129 0.1142 124 0.75 82
IV.EVRN.HNN. 2018-10-13T00:31:32.24 0.1 undecidable manual P 140 0.0728 137 -0.06 100
IV.EMCN.HNZ. 2018-10-13T00:31:31.48 0.1 undecidable manual P 324 0.0576 143 -0.61 88
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EMCN.HNE. ML:2.7 0.00971 1.88 AML other m 2018-10-13T00:31:34.99
IV.EPOZ.HHN. ML:2.7 0.006045 1.44 AML other m 2018-10-13T00:31:38.79
IV.EPOZ.HHE. ML:2.7 0.005695 1.46 AML other m 2018-10-13T00:31:38.18
IV.EPZF.HHE. ML:0 0.000966 0.32 AML other m 2018-10-13T00:31:41.51
IV.EPZF.HHN. ML:0 0.00079 0.32 AML other m 2018-10-13T00:31:42.36
IV.NOV.HHN. ML:2.3 0.000933 0.68 AML other m 2018-10-13T00:31:42.43
IV.MUCR.HHE. ML:1.8 0.0002545 0.46 AML other m 2018-10-13T00:31:44.91
IV.MUCR.HHN. ML:1.7 0.000175 0.44 AML other m 2018-10-13T00:31:45.19
IV.AGST.EHE. ML:0 0.0001535 1.5 AML other m 2018-10-13T00:31:45.16
IV.MNO.SHE. ML:0 0.0002385 0.56 AML other m 2018-10-13T00:31:46.28
IV.NOV.HHE. ML:2.3 0.0008845 0.7 AML other m 2018-10-13T00:31:46.13
IV.MNO.SHN. ML:0 0.0002775 1.36 AML other m 2018-10-13T00:31:46.94
IV.AGST.EHN. ML:0 0.0002 0.42 AML other m 2018-10-13T00:31:49.31
IV.MILZ.HHE. ML:0 0.000194 0.4 AML other m 2018-10-13T00:31:52.05
IV.MILZ.HHN. ML:1.6 8.645E-5 1.2 AML other m 2018-10-13T00:31:52.83
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