Earthquake with magnitude of ML 2.3 on date 22-10-2020 and time 14:24:41 (Italy) in region 8 km N Ragalna (CT)

A magnitude ML 2.3 earthquake occured in region: 8 km N Ragalna (CT), on

  • 22-10-2020 12:24:41 (UTC)
  • 22-10-2020 14:24:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.705, 14.931 at 25 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 8 3924 3924
Biancavilla CT 9 24007 27931
Adrano CT 10 36122 64053
Santa Maria di Licodia CT 10 7641 71694
Bronte CT 13 19172 90866
Nicolosi CT 13 7463 98329
Belpasso CT 13 28108 126437
Paternò CT 14 48228 174665
Pedara CT 15 14102 188767
Maletto CT 15 3920 192687
Zafferana Etnea CT 15 9517 202204
Trecastagni CT 16 10910 213114
Milo CT 17 1087 214201
Camporotondo Etneo CT 17 5023 219224
San Pietro Clarenza CT 17 7743 226967
Viagrande CT 18 8563 235530
Mascalucia CT 18 31958 267488
Santa Venerina CT 19 8592 276080
Tremestieri Etneo CT 19 20589 296669
Centuripe EN 19 5470 302139
Randazzo CT 19 10900 313039
Sant'Alfio CT 19 1582 314621
Aci Bonaccorsi CT 20 3524 318145
Gravina di Catania CT 20 25838 343983

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km W of Acireale (52622 inhabitants)
26 Km NW of Catania (314555 inhabitants)
77 Km SW of Reggio di Calabria (183035 inhabitants)
77 Km SW of Messina (238439 inhabitants)
78 Km NW of Siracusa (122291 inhabitants)
80 Km E of Caltanissetta (63360 inhabitants)
88 Km N of Ragusa (73313 inhabitants)
91 Km NE of Vittoria (63339 inhabitants)
93 Km NE of Gela (75827 inhabitants)
95 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 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. 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 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, 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 from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

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 2019

Earthquakes since 1000 AD until 2019 *

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
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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
Bulletin
Rev1000
ML 2.3 2020-10-22
12:24:41
37.7048 14.9307 25 2021-02-26
14:56:18
Bollettino Sismico Italiano INGV 87051651
Reviewed
Rev200
ML 2.2 2020-10-22
12:24:40
37.725 14.871 21 2021-02-23
10:59:14
Sala Operativa INGV_OE (Catania) 84026831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-22 12:24:41 ± 0.14
Latitude 37.7048 ± 0.0045
Longitude 14.9307 ± 0.0091
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87051651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 669
Semi-minor axis of confidence ellipse (meter) 449
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 271
Circular confidence region, given by single value of horizontal uncertainty (meter) 670
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 44
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.02338
Epicentral distance of station farthest from the epicenter (degree) 0.96227
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 26
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 42
Type of magnitude ML
Reference to an origin 87051651
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-11 16:50:29

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 84026831
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-10-22 12:37:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2020-10-22T12:25:06.56 0.3 undecidable manual S 168 0.7599 101 0.15 66
IV.HMDC.HHZ. 2020-10-22T12:25:06.88 0.3 undecidable manual S 189 0.7545 101 0.63 58
IV.MSRU.HHZ. 2020-10-22T12:25:06.03 0.3 undecidable manual S 39 0.7204 101 0.78 54
IV.SSY.HHZ. 2020-10-22T12:25:01.25 0.1 undecidable manual S 168 0.5585 105 0.67 80
IV.SCIAR.HHZ. 2020-10-22T12:25:00.56 0.3 undecidable manual P 285 0.9623 98 1.45 37
IV.CAGR.HHE. 2020-10-22T12:24:59.07 0.3 undecidable manual S 256 0.3507 116 4.28 3
IV.HCRL.HHZ. 2020-10-22T12:24:57.34 0.3 undecidable manual S 169 0.429 111 0.41 67
IV.HAGA.HHZ. 2020-10-22T12:24:57.89 0.3 undecidable manual S 157 0.456 109 0.22 69
IV.MSFR.HHZ. 2020-10-22T12:24:56.84 0.6 undecidable manual S 321 0.4236 111 0.06 48
IT.LNT.HGZ. 2020-10-22T12:24:56.86 0.3 undecidable manual S 172 0.42 111 0.18 70
IV.MSRU.HHZ. 2020-10-22T12:24:55.36 0.1 undecidable manual P 39 0.7204 101 0.32 85
IV.HLNI.HHZ. 2020-10-22T12:24:55.08 0.3 undecidable manual S 187 0.3588 115 0.06 73
IV.HAVL.HHZ. 2020-10-22T12:24:55.43 0.1 undecidable manual P 168 0.7599 101 -0.28 85
IV.AIO.HHZ. 2020-10-22T12:24:55.48 0.6 undecidable manual S 42 0.3579 115 0.51 44
IV.HMDC.HHZ. 2020-10-22T12:24:55.28 0.1 undecidable manual P 189 0.7545 101 -0.33 84
IV.MUCR.HHZ. 2020-10-22T12:24:54.92 0.6 undecidable manual S 352 0.3408 116 0.39 45
IV.PETRA.HHZ. 2020-10-22T12:24:53.89 0.6 undecidable manual P 282 0.6574 103 -0.09 45
IV.SSY.HHZ. 2020-10-22T12:24:52.24 0.1 undecidable manual P 168 0.5585 105 -0.1 92
IV.AGST.EHZ. 2020-10-22T12:24:51.31 0.1 undecidable manual P 152 0.5063 107 -0.17 92
IV.ECTS.HHZ. 2020-10-22T12:24:51.89 0.3 undecidable manual S 40 0.232 128 0.09 74
IV.EPIT.HHZ. 2020-10-22T12:24:50.43 0.3 undecidable manual S 43 0.1457 143 0.44 70
IV.HAGA.HHZ. 2020-10-22T12:24:50.49 0.1 undecidable manual P 157 0.456 109 -0.17 93
IV.EPZF.HHZ. 2020-10-22T12:24:50.48 0.3 undecidable manual S 334 0.1322 145 0.73 64
IV.EVRN.HNN. 2020-10-22T12:24:50.05 0.3 undecidable manual S 95 0.1628 139 -0.25 72
IT.LNT.HGZ. 2020-10-22T12:24:49.84 0.1 undecidable manual P 172 0.42 111 -0.25 92
IV.AIO.HHZ. 2020-10-22T12:24:49.21 0.1 undecidable manual P 42 0.3579 115 0.11 95
IV.CAGR.HHE. 2020-10-22T12:24:49.86 0.3 undecidable manual P 256 0.3507 116 0.86 57
IV.MSFR.HHZ. 2020-10-22T12:24:49.86 0.6 positive manual P 321 0.4236 111 -0.29 46
IV.HCRL.HHZ. 2020-10-22T12:24:49.99 0.1 undecidable manual P 169 0.429 111 -0.25 92
IV.HLNI.HHZ. 2020-10-22T12:24:48.69 0.1 undecidable manual P 187 0.3588 115 -0.44 89
IV.MUCR.HHZ. 2020-10-22T12:24:48.33 0.3 undecidable manual P 352 0.3408 116 -0.52 66
IV.GALF.HHZ. 2020-10-22T12:24:47.84 0.1 negative manual P 271 0.2878 121 -0.21 95
IV.ECTS.HHZ. 2020-10-22T12:24:47.05 0.3 undecidable manual P 40 0.232 128 -0.22 72
IV.EPOZ.HNZ. 2020-10-22T12:24:47.18 0.3 undecidable manual P 99 0.2068 132 0.25 72
IV.EPIT.HHZ. 2020-10-22T12:24:46.33 0.1 undecidable manual P 43 0.1457 143 0.1 100
IV.EVRN.HNN. 2020-10-22T12:24:46.04 0.3 undecidable manual P 95 0.1628 139 -0.37 70
IV.ESLN.HHZ. 2020-10-22T12:24:45.24 0.3 undecidable manual P 108 0.0369 170 -0.22 74
IV.EPZF.HHZ. 2020-10-22T12:24:45.57 0.1 positive manual P 334 0.1322 145 -0.52 91
IV.ECHR.HNZ. 2020-10-22T12:24:45.15 0.1 positive manual P 217 0.0234 173 -0.27 98
IV.ECBD.HHZ. 2020-10-22T12:24:45.66 0.3 undecidable manual P 59 0.1448 143 -0.55 67
IV.EMSG.HHZ. 2020-10-22T12:24:45.61 0.1 positive manual P 7 0.1169 149 -0.34 95
IV.ESML.HHZ. 2020-10-22T12:24:45.24 0.3 undecidable manual P 205 0.0953 154 -0.54 68
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESLN.HHE. ML:2.4 0.001472501 0.4608 AML other m 2020-10-22T12:24:49.95
IV.EPZF.HHE. ML:2.7 0.00269 0.5 AML other m 2020-10-22T12:24:50.98
IV.EPZF.HHN. ML:2.6 0.00198 1.16 AML other m 2020-10-22T12:24:50.30
IV.EMSG.HHE. ML:2.5 0.00184 0.58 AML other m 2020-10-22T12:24:50.89
IV.ESML.HHE. ML:2.4 0.001475 0.26 AML other m 2020-10-22T12:24:52.21
IV.ESLN.HHN. ML:2.3 0.001335 0.3 AML other m 2020-10-22T12:24:53.08
IV.EMSG.HHN. ML:2.4 0.001385 0.24 AML other m 2020-10-22T12:24:55.04
IV.HLNI.HHN. ML:2.2 0.000424 0.3 AML other m 2020-10-22T12:24:55.85
IV.GALF.HHN. ML:2.5 0.001138 0.3 AML other m 2020-10-22T12:24:55.78
IV.GALF.HHE. ML:2.7 0.001615 0.62 AML other m 2020-10-22T12:24:55.93
IV.HLNI.HHE. ML:2.1 0.00034 1.9 AML other m 2020-10-22T12:24:56.95
IV.AIO.HHE. ML:2.3 0.000599 1.58 AML other m 2020-10-22T12:24:56.89
IV.AIO.HHN. ML:2.1 0.000358 1.14 AML other m 2020-10-22T12:24:56.27
IV.ESML.HHN. ML:2.3 0.001166689 0.576 AML other m 2020-10-22T12:24:56.92
IV.MUCR.HHN. ML:1.9 0.0002395 1.2 AML other m 2020-10-22T12:24:57.74
IV.HAGA.HHE. ML:2.1 0.0003005 0.4 AML other m 2020-10-22T12:24:58.36
IV.MSFR.HHN. ML:1.6 0.00010785 0.76 AML other m 2020-10-22T12:24:58.60
IV.HAGA.HHN. ML:2.1 0.0003125 0.52 AML other m 2020-10-22T12:24:59.13
IV.HCRL.HHE. ML:2.2 0.0004005 1.24 AML other m 2020-10-22T12:24:59.66
IV.MSFR.HHE. ML:1.7 0.0001285 1.3 AML other m 2020-10-22T12:24:59.12
IV.CAGR.HHE. ML:2.7 0.00142 1.38 AML other m 2020-10-22T12:25:00.82
IV.CAGR.HHN. ML:2.5 0.0008655 1.26 AML other m 2020-10-22T12:25:00.21
IV.AGST.EHN. ML:2.4 0.000489 0.94 AML other m 2020-10-22T12:25:00.00
IV.AGST.EHE. ML:2.4 0.000453 1.38 AML other m 2020-10-22T12:25:00.02
IV.HCRL.HHN. ML:2.1 0.0003165 1.56 AML other m 2020-10-22T12:25:01.99
IV.SSY.HHE. ML:2.9 0.001385 0.6 AML other m 2020-10-22T12:25:01.42
IV.MUCR.HHE. ML:1.8 0.0002025 0.38 AML other m 2020-10-22T12:25:01.42
IV.SSY.HHN. ML:3.2 0.002665 0.42 AML other m 2020-10-22T12:25:05.44
IV.HAVL.HHN. ML:3 0.00111 0.78 AML other m 2020-10-22T12:25:07.90
IV.HMDC.HNN. ML:2.4 0.0003415 1.66 AML other m 2020-10-22T12:25:07.12
IV.HAVL.HHE. ML:2.7 0.0006745 1.4 AML other m 2020-10-22T12:25:08.78
IV.HMDC.HHE. ML:2.5 0.0004135 1.5 AML other m 2020-10-22T12:25:08.22
IV.HMDC.HNE. ML:2.5 0.000398 1.5 AML other m 2020-10-22T12:25:08.22
IV.HMDC.HHN. ML:2.4 0.0003285 0.24 AML other m 2020-10-22T12:25:08.27
IV.MSRU.HHN. ML:2.1 0.000157 0.28 AML other m 2020-10-22T12:25:09.20
IV.PETRA.HHN. ML:1.9 0.0001125 1.24 AML other m 2020-10-22T12:25:09.81
IV.PETRA.HHE. ML:1.9 0.0001275 0.6 AML other m 2020-10-22T12:25:10.48
IV.MSRU.HHE. ML:2.1 0.0001745 1.58 AML other m 2020-10-22T12:25:11.96
IV.SCIAR.HHN. ML:2.2 0.000126 0.84 AML other m 2020-10-22T12:25:18.56
IV.SCIAR.HHE. ML:1.9 7.215E-5 0.66 AML other m 2020-10-22T12:25:21.63
MN.TIP.HNE. ML:2.6 7.765E-5 1.58 AML other m 2020-10-22T12:25:48.94
MN.TIP.HNN. ML:2.5 6.42E-5 0.42 AML other m 2020-10-22T12:25:52.34
IV.MRB1.HHN. ML:0 0.0002615 1.66 AML other m 2020-10-22T12:25:56.10
IV.MRB1.HHE. ML:0 0.000235 0.32 AML other m 2020-10-22T12:25:57.49
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

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 miniseed + resp format Download