Earthquake with magnitude of ML 2.4 on date 26-10-2020 and time 00:22:11 (Italy) in region 6 km E Santo Stefano in Aspromonte (RC)

A magnitude ML 2.4 earthquake occured in region: 6 km E Santo Stefano in Aspromonte (RC), on

  • 25-10-2020 23:22:11 (UTC)
  • 26-10-2020 00:22:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.19, 15.85 at 8 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
Santo Stefano in Aspromonte RC 6 1263 1263
Sant'Eufemia d'Aspromonte RC 8 4120 5383
Delianuova RC 8 3352 8735
Sinopoli RC 8 2089 10824
Sant'Alessio in Aspromonte RC 9 343 11167
Scido RC 9 931 12098
Laganadi RC 10 413 12511
San Roberto RC 11 1750 14261
San Procopio RC 11 534 14795
Cosoleto RC 11 859 15654
Bagnara Calabra RC 11 10255 25909
Calanna RC 12 934 26843
Santa Cristina d'Aspromonte RC 12 929 27772
Melicuccà RC 13 930 28702
Scilla RC 14 4964 33666
Cardeto RC 14 1641 35307
Fiumara RC 14 1018 36325
Oppido Mamertina RC 16 5332 41657
Seminara RC 16 2811 44468
Roccaforte del Greco RC 17 476 44944
Platì RC 17 3812 48756
Campo Calabro RC 17 4536 53292
Varapodio RC 18 2160 55452
Palmi RC 19 18930 74382
Bagaladi RC 19 1039 75421
Villa San Giovanni RC 19 13784 89205
San Luca RC 19 3881 93086
Terranova Sappo Minulio RC 20 523 93609

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Reggio di Calabria (183035 inhabitants)
26 Km E of Messina (238439 inhabitants)
88 Km NE of Acireale (52622 inhabitants)
96 Km SW of Lamezia Terme (70714 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
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 2.4 2020-10-25
23:22:11
38.19 15.85 8 2020-10-25
23:29:50
Sala Sismica INGV-Roma 84136051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-25 23:22:11 ± 0.08
Latitude 38.19 ± 0.00
Longitude 15.85 ± 0.00
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84136051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 431
Semi-minor axis of confidence ellipse (meter) 399
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 158
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.78511
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 14
Magnitude information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 15
Type of magnitude ML
Reference to an origin 84136051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-25 23:29:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
HL.VLS.HHZ. 2020-10-25T23:23:46.76 3.0 undecidable manual Sn -4.99 0
IV.MCRV.HHZ. 2020-10-25T23:23:22.20 3.0 undecidable manual Sn -0.41 0
IV.PAOL.HHZ. 2020-10-25T23:23:05.06 3.0 undecidable manual Pg 9.28 0
IV.PTRJ.HHZ. 2020-10-25T23:22:59.82 3.0 undecidable manual Pn -0.37 0
IV.RAFF.HHZ. 2020-10-25T23:22:40.75 3.0 negative manual Pg 1.66 0
IV.PLLN.EHZ. 2020-10-25T23:22:37.21 3.0 negative manual P 1.22 0
IV.HLNI.HHZ. 2020-10-25T23:22:34.63 3.0 positive manual P 0.63 0
IV.AIO.HHZ. 2020-10-25T23:22:30.63 0.6 undecidable manual S 246 0.536 50 0.17 47
IV.MILZ.HHZ. 2020-10-25T23:22:29.31 0.6 undecidable manual S 279 0.4955 50 0.06 49
IV.SPS2.HHZ. 2020-10-25T23:22:29.58 3.0 negative manual P -0.21 0
IV.MUCR.HHZ. 2020-10-25T23:22:27.37 0.6 positive manual P 259 0.7851 50 0.67 39
IV.JOPP.HHZ. 2020-10-25T23:22:26.25 0.3 undecidable manual S 3 0.4155 50 -0.64 64
IV.MPNC.HHZ. 2020-10-25T23:22:26.41 0.6 undecidable manual S 264 0.3966 50 0.08 50
IV.IVPL.HHZ. 2020-10-25T23:22:25.88 1.0 undecidable manual P 285 0.7096 50 0.47 21
IV.ECTS.HHZ. 2020-10-25T23:22:24.69 1.0 positive manual P 242 0.6547 50 0.22 23
IV.AIO.HHZ. 2020-10-25T23:22:22.52 0.1 positive manual P 246 0.536 50 0.09 97
IV.PLAC.HHZ. 2020-10-25T23:22:22.61 0.1 undecidable manual P 60 0.5252 50 0.35 92
IV.MSRU.HHZ. 2020-10-25T23:22:22.15 0.3 undecidable manual S 285 0.2806 105 -0.51 70
IV.MILZ.HHZ. 2020-10-25T23:22:21.86 0.6 negative manual P 279 0.4955 50 0.12 48
IV.MTTG.HHZ. 2020-10-25T23:22:20.23 0.3 undecidable manual S 213 0.2239 108 -0.34 73
IV.JOPP.HHZ. 2020-10-25T23:22:20.23 0.1 undecidable manual P 3 0.4155 50 -0.15 98
IV.SOI.EHZ. 2020-10-25T23:22:19.08 0.3 undecidable manual S 127 0.197 110 -0.5 71
IV.MPNC.HHZ. 2020-10-25T23:22:19.93 0.1 positive manual P 264 0.3966 50 -0.12 99
IV.FERC.HNZ. 2020-10-25T23:22:18.87 0.1 undecidable manual P 39 0.3381 50 -0.18 99
IV.MSRU.HHZ. 2020-10-25T23:22:17.98 0.6 undecidable manual P 285 0.2806 105 0.04 51
IV.SICLA.EHZ. 2020-10-25T23:22:17.26 0.6 undecidable manual S 301 0.1268 120 0.12 52
IV.SOI.EHZ. 2020-10-25T23:22:16.40 0.1 positive manual P 127 0.197 110 0.25 100
IV.MTTG.HHZ. 2020-10-25T23:22:16.84 1.0 undecidable manual P 213 0.2239 108 0.12 26
IV.SICLA.EHZ. 2020-10-25T23:22:15.22 1.0 undecidable manual P 301 0.1268 120 0.48 24
MN.CEL.HHZ. 2020-10-25T23:22:15.90 0.6 undecidable manual S 25 0.0755 134 0.37 50
MN.CEL.HHZ. 2020-10-25T23:22:14.13 1.0 negative manual P 25 0.0755 134 0.32 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MILZ.HHN. ML:2.8 0.00133 0.32 AML other m 2020-10-25T23:22:31.95
IV.SICLA.EHN. ML:2.5 0.00379 0.38 AML other m 2020-10-25T23:22:17.65
IV.SOI.EHN. ML:2.2 0.001205 0.32 AML other m 2020-10-25T23:22:19.23
IV.SOI.EHE. ML:2 0.0007375 0.34 AML other m 2020-10-25T23:22:20.63
IV.MTTG.HHN. ML:2.4 0.001535 1.56 AML other m 2020-10-25T23:22:21.80
IV.MSRU.HHN. ML:2.4 0.0012335 0.28 AML other m 2020-10-25T23:22:22.44
IV.MTTG.HHE. ML:2.2 0.001029 0.42 AML other m 2020-10-25T23:22:22.27
IV.MSRU.HHE. ML:2.5 0.00165 0.3 AML other m 2020-10-25T23:22:23.39
IV.MPNC.HHE. ML:2.4 0.000894 0.18 AML other m 2020-10-25T23:22:27.70
IV.MPNC.HHN. ML:2.6 0.001235 0.52 AML other m 2020-10-25T23:22:27.99
IV.MILZ.HHE. ML:2.9 0.00183 1.66 AML other m 2020-10-25T23:22:30.88
IV.JOPP.HHN. ML:1.8 0.0004325 1 AML other m 2020-10-25T23:22:30.24
IV.JOPP.HHE. ML:1.4 0.0002935 0.42 AML other m 2020-10-25T23:22:30.56
IV.HLNI.HHN. ML:2.2 9.415E-5 1.22 AML other m 2020-10-25T23:22:52.28
IV.PLLN.EHE. ML:2.5 0.0001465 1.02 AML other m 2020-10-25T23:22:59.95
IV.PLLN.EHN. ML:2.5 0.000155 0.7 AML other m 2020-10-25T23:23:09.11
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