Earthquake with magnitude of ML 3.0 on date 22-12-2020 and time 16:22:37 (Italy) in region 8 km N Roccaforte del Greco (RC)

A magnitude ML 3.0 earthquake occured in region: 8 km N Roccaforte del Greco (RC), on

  • 22-12-2020 15:22:37 (UTC)
  • 22-12-2020 16:22:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.12, 15.91 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Roccaforte del Greco RC 8 476 476
Santo Stefano in Aspromonte RC 12 1263 1739
Delianuova RC 13 3352 5091
Bagaladi RC 13 1039 6130
Cardeto RC 14 1641 7771
Samo RC 14 809 8580
San Luca RC 14 3881 12461
Scido RC 14 931 13392
Condofuri RC 14 5113 18505
Bova RC 14 448 18953
San Lorenzo RC 14 2640 21593
Sant'Alessio in Aspromonte RC 15 343 21936
Sant'Agata del Bianco RC 15 592 22528
Caraffa del Bianco RC 15 539 23067
Santa Cristina d'Aspromonte RC 16 929 23996
Casignana RC 16 759 24755
Platì RC 16 3812 28567
Laganadi RC 16 413 28980
Sinopoli RC 16 2089 31069
Sant'Eufemia d'Aspromonte RC 17 4120 35189
Staiti RC 17 248 35437
Cosoleto RC 17 859 36296
Ferruzzano RC 18 772 37068
Calanna RC 18 934 38002
San Procopio RC 18 534 38536
San Roberto RC 19 1750 40286
Careri RC 19 2360 42646
Bruzzano Zeffirio RC 19 1111 43757

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Reggio di Calabria (183035 inhabitants)
32 Km E of Messina (238439 inhabitants)
87 Km NE of Acireale (52622 inhabitants)
100 Km NE of Catania (314555 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 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 last 90 days

Earthquakes of the last 90 days

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 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

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and adjourned progressively as more data become available. See http://shakemap.rm.ingv.it/ for additional information.

The red star indicates the epicenter. The red triangles show the stations of the INGV Italian National Seismic Network and the blue triangles those of the Nationa Accelerometric Network of the Dipartimento della Protezione Civile.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of the istrumentally derived intensities. To this purpose, it is used a conversion relation between ground acceleration and velocity, and the Mercalli Modificata (MMI - Modified Mercalli Intensity) scale. In general, the Mercalli intensity scale relies on the effects that the ground shaking produces as reported by an observer.
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows This map shows the distribution of peak ground acceleration expressed as per cent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
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
Reviewed
Rev100
ML 3.0 2020-12-22
15:22:37
38.12 15.91 9 2020-12-22
15:35:38
Sala Sismica INGV-Roma 85630181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-22 15:22:37 ± 0.14
Latitude 38.12 ± 0.02
Longitude 15.91 ± 0.01
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85630181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1964
Semi-minor axis of confidence ellipse (meter) 816
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 152
Circular confidence region, given by single value of horizontal uncertainty (meter) 1960
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 141
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.82198
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 11
Magnitude information

ML:3

Field Value
Value 3
Uncertainty 0.3
Num. used stations 56
Type of magnitude ML
Reference to an origin 85630181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-22 15:35:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RMP.HHZ. 2020-12-22T15:24:30.09 3.0 undecidable manual Sn -6.08 0
AC.VLO.HHZ. 2020-12-22T15:24:16.00 3.0 undecidable manual Sn -1 0
MN.KEK.HHZ. 2020-12-22T15:24:08.00 3.0 undecidable manual Sn -3.89 0
IV.MCRV.HHZ. 2020-12-22T15:23:57.86 3.0 undecidable manual Sg 3.63 0
IV.TREM.HHZ. 2020-12-22T15:23:50.72 3.0 negative manual Pg 12.16 0
IV.RMP.HHZ. 2020-12-22T15:23:49.89 3.0 negative manual Pn 5.46 0
IV.VIVA.HHZ. 2020-12-22T15:23:48.97 3.0 negative manual Pn 5.61 0
IV.SCHR.EHZ. 2020-12-22T15:23:45.17 3.0 undecidable manual Sg 6.57 0
IV.AMUR.HHZ. 2020-12-22T15:23:24.13 3.0 negative manual Pn 1.67 0
IV.IACL.HHZ. 2020-12-22T15:23:20.40 3.0 undecidable manual S 0.7 0
IV.HCRL.HHZ. 2020-12-22T15:23:15.14 3.0 undecidable manual S -0.39 0
IV.IFIL.HHZ. 2020-12-22T15:23:12.97 3.0 undecidable manual S -2.99 0
IV.BULG.HHZ. 2020-12-22T15:23:10.73 3.0 positive manual Pn -0.23 0
IV.PLLN.EHZ. 2020-12-22T15:23:06.86 3.0 negative manual P 3.72 0
IV.RAFF.HHZ. 2020-12-22T15:23:04.66 3.0 positive manual Pn -0.33 0
IV.CELI.HHZ. 2020-12-22T15:23:03.02 3.0 negative manual P 0.73 0
IV.CET2.HHZ. 2020-12-22T15:23:02.28 3.0 negative manual P -0.57 0
IV.IFIL.HHZ. 2020-12-22T15:23:01.09 3.0 positive manual P 1.72 0
IV.HAGA.HHZ. 2020-12-22T15:22:58.28 3.0 negative manual P -0.04 0
IV.HCRL.HHZ. 2020-12-22T15:22:58.48 3.0 positive manual P -0.65 0
IV.HLNI.HHZ. 2020-12-22T15:22:58.51 3.0 positive manual P -1.13 0
IV.MILZ.HHZ. 2020-12-22T15:22:57.26 0.6 undecidable manual S 286 0.5567 50 -0.05 46
IV.EPZF.HHZ. 2020-12-22T15:22:57.77 3.0 undecidable manual P 0
IV.PLAC.HHZ. 2020-12-22T15:22:56.94 0.6 undecidable manual S 51 0.5261 50 0.53 37
IV.JOPP.HHZ. 2020-12-22T15:22:55.13 0.6 undecidable manual S 357 0.4856 50 -0.08 45
IV.IST3.HHZ. 2020-12-22T15:22:54.86 3.0 negative manual P 0.12 0
IV.MUCR.HHZ. 2020-12-22T15:22:54.13 0.1 undecidable manual P 265 0.822 50 0.46 77
IV.EVRN.HHZ. 2020-12-22T15:22:53.46 3.0 undecidable manual P 0
IV.MSRU.HHZ. 2020-12-22T15:22:51.41 0.6 undecidable manual S 294 0.3489 50 0.25 45
IV.PLAC.HHZ. 2020-12-22T15:22:48.36 0.1 positive manual P 51 0.5261 50 -0.25 90
IV.MILZ.HHZ. 2020-12-22T15:22:48.89 0.3 negative manual P 286 0.5567 50 -0.24 65
IV.AIO.HHZ. 2020-12-22T15:22:48.94 0.1 undecidable manual P 255 0.5567 50 -0.19 90
IV.MPNC.HHE. 2020-12-22T15:22:47.08 0.1 undecidable manual P 273 0.4416 50 -0.09 93
IV.JOPP.HHZ. 2020-12-22T15:22:47.58 0.1 positive manual P 357 0.4856 50 -0.34 86
IV.SICLA.EHZ. 2020-12-22T15:22:47.04 0.6 undecidable manual S 311 0.2059 112 0.52 49
IV.MSRU.HHZ. 2020-12-22T15:22:45.45 0.3 negative manual P 294 0.3489 50 -0.13 69
MN.CEL.HHZ. 2020-12-22T15:22:45.13 0.6 undecidable manual S 354 0.1394 121 0.92 49
IV.FERC.HNZ. 2020-12-22T15:22:45.81 0.1 undecidable manual P 27 0.3714 50 -0.15 93
IV.SICLA.EHZ. 2020-12-22T15:22:43.18 0.1 undecidable manual P 311 0.2059 112 0.28 98
IV.SOI.EHZ. 2020-12-22T15:22:43.57 0.6 undecidable manual S 114 0.1205 125 -0.02 49
MN.CEL.HHZ. 2020-12-22T15:22:42.22 0.1 negative manual P 354 0.1394 121 0.66 96
IV.SOI.EHZ. 2020-12-22T15:22:41.29 0.1 undecidable manual P 114 0.1205 125 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SOI.EHN. ML:3.1 0.01545 1.66 AML other m 2020-12-22T15:22:43.86
IV.SOI.EHE. ML:2.9 0.00863 1.24 AML other m 2020-12-22T15:22:44.03
MN.CEL.HHE. ML:3.2 0.01475 0.5 AML other m 2020-12-22T15:22:45.68
MN.CEL.HNE. ML:3.2 0.01495 0.5 AML other m 2020-12-22T15:22:45.68
MN.CEL.HNN. ML:3.2 0.0141 0.5 AML other m 2020-12-22T15:22:45.70
MN.CEL.HHN. ML:3.2 0.01455 0.48 AML other m 2020-12-22T15:22:45.70
IV.SICLA.EHN. ML:3.4 0.0154 0.66 AML other m 2020-12-22T15:22:48.26
IV.SICLA.EHE. ML:3.4 0.01545 0.82 AML other m 2020-12-22T15:22:49.03
IV.MSRU.HHE. ML:3.2 0.005575 0.48 AML other m 2020-12-22T15:22:52.48
IV.MSRU.HHN. ML:3.1 0.004395 0.56 AML other m 2020-12-22T15:22:53.05
IV.JOPP.HHE. ML:3.3 0.00513 0.26 AML other m 2020-12-22T15:22:55.38
IV.PLAC.HHE. ML:2.9 0.001585 0.6 AML other m 2020-12-22T15:22:58.58
IV.PLAC.HNN. ML:2.9 0.001585 0.6 AML other m 2020-12-22T15:22:58.58
IV.JOPP.HHN. ML:3.3 0.00498 0.44 AML other m 2020-12-22T15:22:58.76
IV.PLAC.HHN. ML:2.9 0.00172 0.72 AML other m 2020-12-22T15:22:59.77
IV.PLAC.HNE. ML:2.9 0.00161 0.72 AML other m 2020-12-22T15:22:59.77
IV.AIO.HHN. ML:2.8 0.00136 0.2 AML other m 2020-12-22T15:23:00.24
IV.AIO.HHE. ML:2.6 0.000865 0.34 AML other m 2020-12-22T15:23:00.25
IV.MILZ.HHE. ML:3.4 0.00457 1.66 AML other m 2020-12-22T15:23:00.84
IV.MILZ.HHN. ML:3.1 0.00269 1.14 AML other m 2020-12-22T15:23:00.86
IV.EVRN.HNE. ML:3 0.001256 0.62 AML other m 2020-12-22T15:23:10.18
IV.EVRN.HNN. ML:3 0.001365 1.28 AML other m 2020-12-22T15:23:11.21
IV.EVRN.HHE. ML:3.1 0.001645 1.32 AML other m 2020-12-22T15:23:11.19
IV.IST3.HHE. ML:3.3 0.002075 0.26 AML other m 2020-12-22T15:23:12.59
IV.IST3.HHN. ML:3.4 0.002805 1.06 AML other m 2020-12-22T15:23:12.25
IV.MUCR.HHN. ML:2.9 0.000994 0.84 AML other m 2020-12-22T15:23:15.58
IV.EPZF.HHN. ML:3.2 0.001575 0.54 AML other m 2020-12-22T15:23:15.63
IV.EPZF.HHE. ML:3.2 0.00145 0.34 AML other m 2020-12-22T15:23:15.76
IV.MUCR.HHE. ML:2.7 0.0005535 1.52 AML other m 2020-12-22T15:23:16.84
IV.HCRL.HHN. ML:2.8 0.000523 0.22 AML other m 2020-12-22T15:23:16.96
IV.HCRL.HHE. ML:2.8 0.000483 0.38 AML other m 2020-12-22T15:23:16.96
IV.IFIL.HHE. ML:3.3 0.001425 0.5 AML other m 2020-12-22T15:23:17.29
IV.IFIL.HHN. ML:2.9 0.000604 1.72 AML other m 2020-12-22T15:23:20.86
IV.HAGA.HHN. ML:2.4 0.000208 0.42 AML other m 2020-12-22T15:23:20.72
IV.HAGA.HHE. ML:2.5 0.0002745 0.44 AML other m 2020-12-22T15:23:21.30
IV.EVRN.HHN. ML:3 0.00126 0.52 AML other m 2020-12-22T15:23:21.33
IV.CET2.HHE. ML:3.1 0.000614 0.54 AML other m 2020-12-22T15:23:25.60
IV.CET2.HHN. ML:3.4 0.001265 0.42 AML other m 2020-12-22T15:23:26.54
IV.CELI.HHN. ML:2.5 0.0001735 0.46 AML other m 2020-12-22T15:23:26.65
IV.IACL.HHN. ML:2.8 0.000365 0.34 AML other m 2020-12-22T15:23:26.89
IV.IACL.HHE. ML:2.8 0.000357 1.14 AML other m 2020-12-22T15:23:29.68
IV.PLLN.EHN. ML:3 0.000533 1.08 AML other m 2020-12-22T15:23:31.57
IV.RAFF.HHE. ML:2.9 0.000348 0.56 AML other m 2020-12-22T15:23:31.38
IV.CELI.HHE. ML:2.6 0.0001935 0.66 AML other m 2020-12-22T15:23:32.36
IV.PLLN.EHE. ML:3 0.0005255 0.74 AML other m 2020-12-22T15:23:36.37
IV.BULG.HNE. ML:2.7 0.000118 0.6 AML other m 2020-12-22T15:23:36.75
IV.RAFF.HHN. ML:2.8 0.0002315 0.82 AML other m 2020-12-22T15:23:38.76
IV.BULG.HHE. ML:2.6 9.73E-5 0.52 AML other m 2020-12-22T15:23:40.38
IV.BULG.HHN. ML:2.9 0.0001865 1.68 AML other m 2020-12-22T15:23:44.89
IV.BULG.HNN. ML:2.9 0.0001785 1.68 AML other m 2020-12-22T15:23:44.90
IV.MCRV.HHE. ML:2.4 2.93E-5 0.28 AML other m 2020-12-22T15:23:58.19
IV.MCRV.HHN. ML:2.4 3.175E-5 0.56 AML other m 2020-12-22T15:23:59.41
IV.AMUR.HHE. ML:2.4 2.775E-5 0.74 AML other m 2020-12-22T15:24:06.11
IV.AMUR.HHN. ML:2.5 3.27E-5 1.6 AML other m 2020-12-22T15:24:09.02
AC.VLO.HHN. ML:4.3 0.00125 0.06 AML other m 2020-12-22T15:24:19.03
AC.VLO.HHE. ML:4.2 0.000887 0.06 AML other m 2020-12-22T15:24:19.06
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