Earthquake with magnitude of ML 2.7 on date 22-12-2020 and time 16:26:21 (Italy) in region 7 km N Roccaforte del Greco (RC)

A magnitude ML 2.7 earthquake occured in region: 7 km N Roccaforte del Greco (RC), on

  • 22-12-2020 15:26:21 (UTC)
  • 22-12-2020 16:26:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.1080, 15.9180 at 11 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
Roccaforte del Greco RC 7 476 476
Bagaladi RC 12 1039 1515
Condofuri RC 13 5113 6628
Bova RC 13 448 7076
Samo RC 13 809 7885
San Lorenzo RC 13 2640 10525
Santo Stefano in Aspromonte RC 13 1263 11788
Cardeto RC 14 1641 13429
San Luca RC 14 3881 17310
Sant'Agata del Bianco RC 15 592 17902
Caraffa del Bianco RC 15 539 18441
Delianuova RC 15 3352 21793
Casignana RC 15 759 22552
Scido RC 15 931 23483
Staiti RC 16 248 23731
Sant'Alessio in Aspromonte RC 16 343 24074
Ferruzzano RC 17 772 24846
Platì RC 17 3812 28658
Laganadi RC 17 413 29071
Santa Cristina d'Aspromonte RC 17 929 30000
Sinopoli RC 18 2089 32089
Bruzzano Zeffirio RC 18 1111 33200
Sant'Eufemia d'Aspromonte RC 18 4120 37320
Cosoleto RC 19 859 38179
Calanna RC 19 934 39113
Careri RC 19 2360 41473
Bova Marina RC 19 4235 45708
San Procopio RC 20 534 46242
Africo RC 20 3075 49317
San Roberto RC 20 1750 51067
Montebello Ionico RC 20 6214 57281

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Reggio di Calabria (183035 inhabitants)
33 Km E of Messina (238439 inhabitants)
86 Km NE of Acireale (52622 inhabitants)
99 Km NE of Catania (314555 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is 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 shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is 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 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is 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
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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.7 2020-12-22
15:26:21
38.1082 15.9178 11 2021-02-26
14:56:17
Bollettino Sismico Italiano INGV 86833701
Reviewed
Rev100
ML 2.7 2020-12-22
15:26:21
38.1112 15.9227 10 2020-12-22
15:35:50
Sala Sismica INGV-Roma 85630191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-22 15:26:21 ± 0.08
Latitude 38.1082 ± 0.0054
Longitude 15.9178 ± 0.0046
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86833701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 553
Semi-minor axis of confidence ellipse (meter) 336
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 186
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.11331
Epicentral distance of station farthest from the epicenter (degree) 1.63227
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:2.7

Field Value
Value 2.7
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 86833701
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-04 18:40:44

ML:2.7

Field Value
Value 2.7
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 85630191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-22 15:35:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2020-12-22T15:27:08.30 1.0 undecidable manual S 235 168.2094 50 -0.59 0
IV.CELI.HHE. 2020-12-22T15:27:05.50 1.0 undecidable manual S 19 152.4363 50 0.83 0
IV.GALF.HHZ. 2020-12-22T15:27:02.56 3.0 undecidable manual S 250 125.7741 90 4.66 0
IV.HCRL.HHN. 2020-12-22T15:26:57.10 1.0 undecidable manual S 221 120.0909 50 1.08 0
XK.GIZZ.HHN. 2020-12-22T15:26:51.10 0.6 undecidable manual S 14 99.9222 50 0.46 17
IV.PETRA.HHN. 2020-12-22T15:26:49.51 3.0 undecidable manual P 160.617 1.83 0
IV.GRIS.HNE. 2020-12-22T15:26:49.36 3.0 undecidable manual P 181.1853 -1.32 0
IV.RAFF.HHZ. 2020-12-22T15:26:49.22 0.1 undecidable manual P 235 168.2094 50 0.36 0
IV.GRI.EHN. 2020-12-22T15:26:48.40 1.0 undecidable manual S 29 90.4428 50 0.29 16
IV.CELI.HHE. 2020-12-22T15:26:46.22 0.6 undecidable manual P 19 152.4363 50 -0.2 0
IV.GALF.HHZ. 2020-12-22T15:26:46.43 3.0 undecidable manual P 250 125.7741 90 3.86 0
MN.TIP.HHN. 2020-12-22T15:26:45.40 0.3 undecidable manual P 31 139.3605 50 0.99 0
IV.SERS.HNN. 2020-12-22T15:26:42.91 0.6 undecidable manual P 33 122.6883 50 1.07 0
IV.AIO.HHZ. 2020-12-22T15:26:40.20 1.0 undecidable manual S 256 61.6938 50 -0.25 24
IV.MILZ.HHN. 2020-12-22T15:26:40.40 0.6 undecidable manual S 287 62.493 50 -0.27 48
IV.HCRL.HHN. 2020-12-22T15:26:40.92 0.6 undecidable manual P 221 120.0909 50 -0.51 0
XK.GIZZ.HHN. 2020-12-22T15:26:39.34 0.3 undecidable manual P 14 99.9222 50 1.01 20
IV.SPS2.HHE. 2020-12-22T15:26:39.32 3.0 undecidable manual P 136.1637 -4.6 0
IV.PLAC.HHZ. 2020-12-22T15:26:39.70 0.6 undecidable manual S 50 59.0964 50 -0.04 50
IV.JOPP.HHZ. 2020-12-22T15:26:38.50 0.3 undecidable manual S 357 55.4001 50 -0.26 73
IV.GRI.EHN. 2020-12-22T15:26:37.28 0.6 undecidable manual P 29 90.4428 50 0.41 31
IV.IVGP.HHN. 2020-12-22T15:26:36.77 0.6 undecidable manual P 291 89.3439 50 0.08 35
IV.IVPL.HNE. 2020-12-22T15:26:36.78 0.1 undecidable manual P 290 86.9463 50 0.45 70
IV.MSRU.HHZ. 2020-12-22T15:26:34.30 0.6 undecidable manual S 296 39.627 50 -0.26 48
IV.AIO.HHZ. 2020-12-22T15:26:33.16 0.6 undecidable manual P 256 61.6938 50 0.71 44
IV.MILZ.HHN. 2020-12-22T15:26:32.49 0.3 undecidable manual P 287 62.493 50 -0.08 75
IV.PLAC.HHZ. 2020-12-22T15:26:32.03 0.3 undecidable manual P 50 59.0964 50 0 76
IV.JOPP.HHZ. 2020-12-22T15:26:31.20 0.1 undecidable manual P 357 55.4001 50 -0.27 97
IV.SICLA.EHZ. 2020-12-22T15:26:30.40 0.6 undecidable manual S 313 24.1536 50 -0.03 51
IV.FERC.HNZ. 2020-12-22T15:26:29.32 0.1 undecidable manual P 26 42.4242 50 -0.14 99
MN.CEL.HHZ. 2020-12-22T15:26:28.70 0.3 undecidable manual S 353 16.9719 50 0.18 69
IV.MSRU.HHZ. 2020-12-22T15:26:28.88 0.6 undecidable manual P 296 39.627 50 -0.17 49
IV.SOI.EHZ. 2020-12-22T15:26:26.90 0.3 undecidable manual S 108 12.5763 131 -0.39 72
IV.SICLA.EHZ. 2020-12-22T15:26:26.70 0.6 undecidable manual P 313 24.1536 50 0.04 51
MN.CEL.HHZ. 2020-12-22T15:26:25.83 0.1 undecidable manual P 353 16.9719 50 0.28 93
IV.SOI.EHZ. 2020-12-22T15:26:24.91 0.1 undecidable manual P 108 12.5763 131 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SOI.EHN. ML:0.0 0.007245 0.22 AML other m 2020-12-22T15:26:27.48
IV.SOI.EHE. ML:0.0 0.0031224020000000003 0.256 AML other m 2020-12-22T15:26:28.43
MN.CEL.HHN. ML:0.0 0.0071066795 0.6272 AML other m 2020-12-22T15:26:29.24
MN.CEL.HNN. ML:0.0 0.00689927 0.6272 AML other m 2020-12-22T15:26:29.24
MN.CEL.HNE. ML:0.0 0.00876 0.44 AML other m 2020-12-22T15:26:29.29
MN.CEL.HHE. ML:0.0 0.008615165499999999 0.4608 AML other m 2020-12-22T15:26:29.28
IV.SICLA.EHN. ML:0.0 0.0041308935 0.32 AML other m 2020-12-22T15:26:31.22
IV.SICLA.EHE. ML:0.0 0.003875795 0.3712 AML other m 2020-12-22T15:26:31.53
IV.PLAC.HHE. ML:0.0 0.0009457754500000001 0.256 AML other m 2020-12-22T15:26:40.79
IV.PLAC.HNN. ML:0.0 0.000901 0.24 AML other m 2020-12-22T15:26:42.20
IV.PLAC.HHN. ML:0.0 0.0007578886000000001 0.32 AML other m 2020-12-22T15:26:44.06
IV.PLAC.HNE. ML:0.0 0.00072990095 0.32 AML other m 2020-12-22T15:26:43.90
IV.AIO.HHN. ML:0.0 0.000337 0.46 AML other m 2020-12-22T15:26:48.42
IV.AIO.HHE. ML:0.0 0.00028300000000000005 0.32 AML other m 2020-12-22T15:26:50.60
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols 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