Earthquake with magnitude of ML 2.0 on date 21-09-2020 and time 09:43:39 (Italy) in region 9 km NE Roccaforte del Greco (RC)

A magnitude ML 2.0 earthquake occured in region: 9 km NE Roccaforte del Greco (RC), on

  • 21-09-2020 07:43:39 (UTC)
  • 21-09-2020 09:43:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.12, 15.95 at 45 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 9 476 476
Samo RC 11 809 1285
San Luca RC 11 3881 5166
Sant'Agata del Bianco RC 12 592 5758
Caraffa del Bianco RC 12 539 6297
Casignana RC 13 759 7056
Bova RC 13 448 7504
Delianuova RC 14 3352 10856
Condofuri RC 14 5113 15969
Scido RC 15 931 16900
Platì RC 15 3812 20712
Staiti RC 15 248 20960
Bagaladi RC 15 1039 21999
Ferruzzano RC 15 772 22771
Santo Stefano in Aspromonte RC 15 1263 24034
San Lorenzo RC 15 2640 26674
Santa Cristina d'Aspromonte RC 16 929 27603
Cardeto RC 16 1641 29244
Bruzzano Zeffirio RC 16 1111 30355
Careri RC 17 2360 32715
Africo RC 18 3075 35790
Sant'Alessio in Aspromonte RC 18 343 36133
Sinopoli RC 18 2089 38222
Bianco RC 18 4273 42495
Cosoleto RC 18 859 43354
Sant'Eufemia d'Aspromonte RC 18 4120 47474
Benestare RC 19 2556 50030
Laganadi RC 19 413 50443
San Procopio RC 19 534 50977

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km E of Reggio di Calabria (183035 inhabitants)
35 Km E of Messina (238439 inhabitants)
88 Km NE of Acireale (52622 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

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 2.0 2020-09-21
07:43:39
38.12 15.95 45 2020-09-21
07:53:11
Sala Sismica INGV-Roma 83093781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-21 07:43:39 ± 0.23
Latitude 38.12 ± 0.02
Longitude 15.95 ± 0.02
Depth (km) 45 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83093781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2034
Semi-minor axis of confidence ellipse (meter) 995
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 151
Circular confidence region, given by single value of horizontal uncertainty (meter) 2030
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.09443
Epicentral distance of station farthest from the epicenter (degree) 0.64391
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:2

Field Value
Value 2
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 83093781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-21 07:53:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MPNC.HHZ. 2020-09-21T07:43:58.48 0.3 undecidable manual S 274 0.4685 114 0.42 65
IV.MTTG.HHZ. 2020-09-21T07:43:53.82 0.3 undecidable manual S 240 0.2248 143 0.35 69
MN.CEL.HHZ. 2020-09-21T07:43:52.66 0.3 undecidable manual S 344 0.1511 154 0.13 75
IV.NOV.HHZ. 2020-09-21T07:43:52.60 0.1 undecidable manual P 262 0.6439 103 0.21 85
IV.SOI.EHZ. 2020-09-21T07:43:52.00 0.3 undecidable manual S 117 0.0944 163 -0.04 76
IV.GMB.BHZ. 2020-09-21T07:43:52.24 0.3 undecidable manual S 300 0.107 161 0.11 76
IV.PLAC.HHZ. 2020-09-21T07:43:51.31 0.3 undecidable manual P 49 0.5099 111 0.69 57
IV.JOPP.HHZ. 2020-09-21T07:43:50.37 0.1 undecidable manual P 354 0.4937 112 -0.04 92
IV.MPNC.HHZ. 2020-09-21T07:43:49.81 0.1 undecidable manual P 274 0.4685 114 -0.28 89
IV.MSRU.HHZ. 2020-09-21T07:43:48.69 0.1 undecidable manual P 293 0.375 123 -0.28 90
IV.MTTG.HHZ. 2020-09-21T07:43:47.28 0.1 undecidable manual P 240 0.2248 143 -0.16 97
IV.GMB.BHZ. 2020-09-21T07:43:46.48 0.1 undecidable manual P 300 0.107 161 -0.19 97
MN.CEL.HHZ. 2020-09-21T07:43:46.69 0.1 undecidable manual P 344 0.1511 154 -0.21 95
IV.SOI.EHZ. 2020-09-21T07:43:46.49 0.1 undecidable manual P 117 0.0944 163 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SOI.EHE. ML:2 0.0002845 0.24 AML other m 2020-09-21T07:43:52.09
IV.GMB.BHN. ML:2.7 0.001405 0.56 AML other m 2020-09-21T07:43:52.52
IV.GMB.BHE. ML:2.6 0.001165 0.56 AML other m 2020-09-21T07:43:52.32
MN.CEL.HHN. ML:1.4 6.92E-5 0.64 AML other m 2020-09-21T07:43:52.61
IV.SOI.EHN. ML:1.8 0.0001965 0.66 AML other m 2020-09-21T07:43:52.72
IV.MTTG.HHE. ML:1.8 0.0001615 0.46 AML other m 2020-09-21T07:43:53.82
IV.MTTG.HHN. ML:1.9 0.0002 0.38 AML other m 2020-09-21T07:43:54.18
MN.CEL.HHE. ML:1.4 8.005E-5 0.98 AML other m 2020-09-21T07:43:54.05
IV.MSRU.HHE. ML:2 0.0002185 0.62 AML other m 2020-09-21T07:43:56.29
IV.MSRU.HHN. ML:2.1 0.000257 0.64 AML other m 2020-09-21T07:43:57.32
IV.MPNC.HHN. ML:2.2 0.0002515 0.3 AML other m 2020-09-21T07:43:58.60
IV.MPNC.HHE. ML:2.2 0.000251 0.48 AML other m 2020-09-21T07:43:59.38
IV.JOPP.HHE. ML:1.2 2.42E-5 0.7 AML other m 2020-09-21T07:44:00.45
IV.JOPP.HHN. ML:1.2 2.57E-5 0.26 AML other m 2020-09-21T07:44:00.44
IV.MILZ.HHN. ML:2 0.0001445 0.28 AML other m 2020-09-21T07:44:00.75
IV.MILZ.HHE. ML:2.2 0.000205 1.38 AML other m 2020-09-21T07:44:00.79
IV.NOV.HHE. ML:2.2 0.000209 0.72 AML other m 2020-09-21T07:44:04.80
IV.NOV.HHN. ML:2.2 0.0001985 1.58 AML other m 2020-09-21T07:44:05.86
IV.HLNI.HHN. ML:1.7 3.035E-5 0.26 AML other m 2020-09-21T07:44:12.48
IV.HLNI.HHE. ML:1.8 4.735E-5 0.56 AML other m 2020-09-21T07:44:12.77
IV.ORI.HHE. ML:3 0.0002095 0.08 AML other m 2020-09-21T07:44:37.62
IV.ORI.HHN. ML:0 0.0001455 1.92 AML other m 2020-09-21T07:44:43.98
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