Earthquake with magnitude of ML 2.4 on date 18-07-2018 and time 23:36:30 (Italy) in region 10 km N Ragalna (CT)

A magnitude ML 2.4 earthquake occured in region: 10 km N Ragalna (CT), on

  • 18-07-2018 21:36:30 (UTC)
  • 18-07-2018 23:36:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.71, 14.97 at 9 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
Ragalna CT 10 3924 3924
Biancavilla CT 12 24007 27931
Zafferana Etnea CT 12 9517 37448
Nicolosi CT 12 7463 44911
Santa Maria di Licodia CT 13 7641 52552
Milo CT 13 1087 53639
Adrano CT 13 36122 89761
Pedara CT 13 14102 103863
Belpasso CT 14 28108 131971
Trecastagni CT 14 10910 142881
Bronte CT 15 19172 162053
Santa Venerina CT 15 8592 170645
Sant'Alfio CT 16 1582 172227
Maletto CT 16 3920 176147
Viagrande CT 16 8563 184710
Paternò CT 16 48228 232938
San Pietro Clarenza CT 16 7743 240681
Camporotondo Etneo CT 17 5023 245704
Mascalucia CT 17 31958 277662
Aci Bonaccorsi CT 18 3524 281186
Tremestieri Etneo CT 18 20589 301775
Aci Sant'Antonio CT 18 17984 319759
Randazzo CT 19 10900 330659
San Giovanni la Punta CT 19 23060 353719
Gravina di Catania CT 19 25838 379557
Giarre CT 19 27659 407216
Aci Catena CT 20 29851 437067
Sant'Agata li Battiati CT 20 9479 446546

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of Acireale (52622 inhabitants)
26 Km NW of Catania (314555 inhabitants)
74 Km SW of Reggio di Calabria (183035 inhabitants)
74 Km SW of Messina (238439 inhabitants)
78 Km NW of Siracusa (122291 inhabitants)
84 Km E of Caltanissetta (63360 inhabitants)
90 Km N of Ragusa (73313 inhabitants)
93 Km NE of Vittoria (63339 inhabitants)
96 Km NE of Gela (75827 inhabitants)
97 Km N of Modica (54633 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 2.4 2018-07-18
21:36:30
37.71 14.97 9 2019-04-24
14:50:58
Bollettino Sismico Italiano INGV 63421201
Rev 200 ML 2.5 2018-07-18
21:36:31
37.72 14.96 6 2018-07-19
08:15:53
Sala Operativa INGV-OE (Catania) 58869141
Rev 100 ML 2.4 2018-07-18
21:36:30
37.71 14.97 9 2018-07-18
21:53:54
Sala Sismica INGV-Roma 58868541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-07-18 21:36:30 ± 0.06
Latitude 37.71 ± 0.00
Longitude 14.97 ± 0.01
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 63421201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 520
Semi-minor axis of confidence ellipse (meter) 390
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 260
Circular confidence region, given by single value of horizontal uncertainty (meter) 520
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.02068
Epicentral distance of station farthest from the epicenter (degree) 1.90566
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 32
Type of magnitude ML
Reference to an origin 63421201
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-11-27 09:16:17

ML:2.5

Field Value
Value 2.5
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 58869141
Agency INGV
Autore Sala Operativa INGV-OE (Catania)
Time of creation (UTC) 2018-07-18 22:13:46

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 58868541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-07-18 21:53:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SPS2.HHZ. 2018-07-18T21:37:03.69 0.3 undecidable manual P 34 1.9057 38 -0.32 40
IV.PLAC.HHZ. 2018-07-18T21:36:56.37 0.3 undecidable manual P 57 1.3697 50 0.52 52
IV.JOPP.HHZ. 2018-07-18T21:36:52.47 0.3 undecidable manual P 39 1.1466 50 0.44 56
IV.IACL.HHZ. 2018-07-18T21:36:49.08 0.6 undecidable manual P 330 0.9506 50 0.4 40
IV.SOI.EHZ. 2018-07-18T21:36:48.40 0.6 undecidable manual P 67 0.9281 50 0.11 42
MN.CEL.HHZ. 2018-07-18T21:36:48.24 0.3 undecidable manual P 53 0.9101 50 0.25 62
IV.HMDC.HHZ. 2018-07-18T21:36:45.20 0.3 undecidable manual P 191 0.7689 50 -0.36 62
IV.RAFF.HHZ. 2018-07-18T21:36:44.70 0.1 undecidable manual P 225 0.6871 50 0.53 81
IV.IVPL.HHZ. 2018-07-18T21:36:44.07 0.3 undecidable manual P 1 0.6619 50 0.32 64
IV.MUCR.HHZ. 2018-07-18T21:36:43.39 0.6 undecidable manual S 347 0.3381 50 -0.28 46
IV.HVZN.HHE. 2018-07-18T21:36:42.02 0.1 undecidable manual P 201 0.572 50 -0.17 90
IV.MNO.SHZ. 2018-07-18T21:36:42.73 0.6 undecidable manual S 315 0.3067 50 -0.03 49
IV.SSY.HHZ. 2018-07-18T21:36:41.77 0.3 undecidable manual P 171 0.5621 50 -0.25 67
IV.MPNC.HHN. 2018-07-18T21:36:41.77 0.3 undecidable manual P 35 0.5279 50 0.33 66
IV.AGST.EHE. 2018-07-18T21:36:40.68 0.3 undecidable manual P 156 0.5 50 -0.3 67
IV.HAGA.HHZ. 2018-07-18T21:36:40.00 0.6 undecidable manual P 161 0.4533 50 -0.16 46
IV.GALF.HHZ. 2018-07-18T21:36:38.18 0.3 undecidable manual P 270 0.3184 50 0.31 69
IV.AIO.HHZ. 2018-07-18T21:36:38.11 0.3 undecidable manual P 39 0.331 50 0.03 73
IV.NOV.HHZ. 2018-07-18T21:36:37.89 0.3 undecidable manual P 23 0.3408 50 -0.35 68
IV.EPZF.HHZ. 2018-07-18T21:36:37.26 0.6 undecidable manual S 321 0.1412 119 0.29 48
IV.MUCR.HHZ. 2018-07-18T21:36:37.86 0.1 positive manual P 347 0.3381 50 -0.33 91
IV.MNO.SHZ. 2018-07-18T21:36:37.54 0.3 undecidable manual P 315 0.3067 50 -0.12 72
IV.EVRN.HNZ. 2018-07-18T21:36:36.73 0.6 undecidable manual S 100 0.134 121 0.02 51
IV.EMSG.HHZ. 2018-07-18T21:36:36.10 0.3 undecidable manual S 352 0.1079 126 0.21 74
IV.ESML.HHZ. 2018-07-18T21:36:36.72 0.6 undecidable manual S 217 0.1187 124 0.49 46
IV.EPOZ.HHZ. 2018-07-18T21:36:35.34 0.3 undecidable manual P 103 0.1781 114 0.29 71
IV.ESML.HHZ. 2018-07-18T21:36:34.01 0.3 undecidable manual P 217 0.1187 124 0.11 75
IV.EVRN.HNZ. 2018-07-18T21:36:33.96 0.3 undecidable manual P 100 0.134 121 -0.21 73
IV.EMSG.HHZ. 2018-07-18T21:36:33.41 0.1 undecidable manual P 352 0.1079 126 -0.29 96
IV.EPZF.HHZ. 2018-07-18T21:36:33.89 0.1 positive manual P 321 0.1412 119 -0.43 93
IV.ESLN.HHZ. 2018-07-18T21:36:33.92 0.3 undecidable manual S 169 0.0207 166 0.04 77
IV.ESLN.HHZ. 2018-07-18T21:36:32.34 0.1 positive manual P 169 0.0207 166 -0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.JOPP.HHE. ML:1.9 4.9927885E-5 0.6016 AML other m 2018-07-18T21:37:18.28
IV.CAR1.HHE. ML:0 6.62E-5 0.6 AML other m 2018-07-18T21:37:31.91
IV.CAR1.HHN. ML:0 7.37E-5 0.5 AML other m 2018-07-18T21:37:34.61
IV.ESLN.HHN. ML:0 0.039296465 0.2816 AML other m 2018-07-18T21:36:34.26
IV.ESLN.HHE. ML:0 0.03556825 0.3072 AML other m 2018-07-18T21:36:34.31
IV.EMSG.HHN. ML:2.8 0.008046432 0.32 AML other m 2018-07-18T21:36:39.34
IV.EMSG.HHE. ML:2.9 0.010558008 0.32 AML other m 2018-07-18T21:36:37.03
IV.EPZF.HHN. ML:2.8 0.0060556345 0.2944 AML other m 2018-07-18T21:36:39.08
IV.EPZF.HHE. ML:2.9 0.0073404505 0.3328 AML other m 2018-07-18T21:36:38.58
IV.ESML.HHN. ML:2.7 0.0059667405 0.3712 AML other m 2018-07-18T21:36:38.88
IV.ESML.HHE. ML:2.8 0.0078868835 0.2688 AML other m 2018-07-18T21:36:38.63
IV.EPOZ.HHE. ML:2.8 0.0054660645 0.6016 AML other m 2018-07-18T21:36:40.99
IV.EPOZ.HHN. ML:2.8 0.0047287525 0.6912 AML other m 2018-07-18T21:36:40.26
IV.MNO.SHN. ML:0 0.0027266065 0.5632 AML other m 2018-07-18T21:36:47.30
IV.MNO.SHE. ML:0 0.00107889635 0.3584 AML other m 2018-07-18T21:36:47.72
IV.MUCR.HHN. ML:2.5 0.0012975155 0.8064 AML other m 2018-07-18T21:36:51.79
IV.MUCR.HHE. ML:2.4 0.000940423 0.7424 AML other m 2018-07-18T21:36:53.14
IV.NOV.HHN. ML:2.2 0.0005834092 0.64 AML other m 2018-07-18T21:36:47.97
IV.NOV.HHE. ML:2.2 0.0006974421 0.3968 AML other m 2018-07-18T21:36:48.31
IV.AIO.HHE. ML:2 0.00042407355 0.4224 AML other m 2018-07-18T21:36:46.19
IV.AIO.HHN. ML:2.1 0.0004725697 0.5376 AML other m 2018-07-18T21:36:48.23
IV.GALF.HNN. ML:2.2 0.00062281985 0.9088 AML other m 2018-07-18T21:36:47.17
IV.GALF.HHN. ML:2.7 0.00191178 0.3712 AML other m 2018-07-18T21:36:47.60
IV.GALF.HNE. ML:2 0.00044239795 0.4992 AML other m 2018-07-18T21:36:54.33
IV.GALF.HHE. ML:2.5 0.0014400465 0.512 AML other m 2018-07-18T21:36:48.79
IV.IVPL.HHE. ML:2.8 0.0009255321 0.512 AML other m 2018-07-18T21:36:58.09
IV.IVPL.HHN. ML:2.8 0.0009145084 0.4864 AML other m 2018-07-18T21:36:59.87
IV.RAFF.HHN. ML:2.2 0.0002307798 0.6016 AML other m 2018-07-18T21:37:07.58
IV.RAFF.HHE. ML:2.4 0.00034111835 0.384 AML other m 2018-07-18T21:36:58.34
MN.CEL.HHN. ML:2 9.512632E-5 1.1136 AML other m 2018-07-18T21:37:04.42
MN.CEL.HHE. ML:1.8 6.210506E-5 0.5376 AML other m 2018-07-18T21:37:11.32
MN.CEL.HNE. ML:2 9.2885125E-5 0.7168 AML other m 2018-07-18T21:37:11.83
MN.CEL.HNN. ML:2 0.00011081325 0.9728 AML other m 2018-07-18T21:37:04.42
IV.IACL.HHE. ML:2.6 0.0004095151 0.5632 AML other m 2018-07-18T21:37:06.12
IV.IACL.HHN. ML:2.6 0.00036984485 0.5248 AML other m 2018-07-18T21:37:05.29
IV.JOPP.HHN. ML:2 6.25905E-5 0.448 AML other m 2018-07-18T21:37:10.41
IV.PLAC.HHN. ML:2.1 5.8084095E-5 0.6912 AML other m 2018-07-18T21:37:31.81
IV.PLAC.HNE. ML:2.1 6.129691E-5 0.5632 AML other m 2018-07-18T21:37:25.86
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