Earthquake with magnitude of ML 1.0 on date 22-11-2021 and time 17:43:50 (Italy) in region 4 km SE Reggio di Calabria (RC)

A magnitude ML 1.0 earthquake occured in region: 4 km SE Reggio di Calabria (RC), on

  • 22-11-2021 16:43:50 (UTC)
  • 22-11-2021 17:43:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.078, 15.66 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
Reggio di Calabria RC 4 183035 183035
Motta San Giovanni RC 9 6208 189243
Cardeto RC 9 1641 190884
Calanna RC 13 934 191818
Laganadi RC 13 413 192231
Sant'Alessio in Aspromonte RC 14 343 192574
Montebello Ionico RC 14 6214 198788
Fiumara RC 15 1018 199806
Santo Stefano in Aspromonte RC 15 1263 201069
Bagaladi RC 15 1039 202108
Campo Calabro RC 15 4536 206644
Messina ME 16 238439 445083
Villa San Giovanni RC 16 13784 458867
San Roberto RC 16 1750 460617
San Lorenzo RC 17 2640 463257
Scaletta Zanclea ME 18 2140 465397
Condofuri RC 19 5113 470510
Roghudi RC 19 1104 471614
Itala ME 20 1640 473254

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km SE of Reggio di Calabria (183035 inhabitants)
16 Km SE of Messina (238439 inhabitants)
68 Km NE of Acireale (52622 inhabitants)
81 Km NE of Catania (314555 inhabitants)
Recent and historical seismicity
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 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
Reviewed
Rev100
ML 1.0 2021-11-22
16:43:50
38.0783 15.6603 8 2021-11-22
16:54:20
Sala Sismica INGV-Roma 97693991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-22 16:43:50 ± 0.08
Latitude 38.0783 ± 0.0045
Longitude 15.6603 ± 0.0046
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 97693991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 544
Semi-minor axis of confidence ellipse (meter) 324
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 143
Circular confidence region, given by single value of horizontal uncertainty (meter) 540
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.08184
Epicentral distance of station farthest from the epicenter (degree) 0.55668
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 97693991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-22 16:54:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.JOPP.HHZ. 2021-11-22T16:44:10.01 0.3 undecidable manual S 18 0.5567 50 0.28 67
IV.AIO.HHE. 2021-11-22T16:44:03.32 0.3 undecidable manual S 252 0.3534 50 -0.37 68
IV.JOPP.HHZ. 2021-11-22T16:44:01.58 0.6 negative manual P 18 0.5567 50 0.14 46
IV.MPNC.HHZ. 2021-11-22T16:44:00.24 0.3 undecidable manual S 286 0.2509 106 0.05 75
MN.CEL.HHZ. 2021-11-22T16:44:00.55 0.6 undecidable manual S 45 0.2581 106 0.09 49
IV.AIO.HHE. 2021-11-22T16:43:58.00 0.1 undecidable manual P 252 0.3534 50 0.05 98
IV.MPNC.HHZ. 2021-11-22T16:43:56.00 0.1 positive manual P 286 0.2509 106 0.07 99
TV.GMB1.HHZ. 2021-11-22T16:43:56.44 0.3 undecidable manual S 53 0.1556 115 -0.29 72
MN.CEL.HHZ. 2021-11-22T16:43:55.81 0.3 negative manual P 45 0.2581 106 -0.28 71
IV.MTTG.HHZ. 2021-11-22T16:43:54.36 0.6 undecidable manual S 157 0.0818 132 0.03 52
TV.GMB1.HHZ. 2021-11-22T16:43:53.99 0.6 negative manual P 53 0.1556 115 0.05 51
IV.MTTG.HHZ. 2021-11-22T16:43:52.73 0.1 undecidable manual P 157 0.0818 132 0.18 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTTG.HHN. ML:1.5 0.0004385 0.3 AML other m 2021-11-22T16:43:54.56
IV.MTTG.HHE. ML:1.1 0.000204864195 0.1408 AML other m 2021-11-22T16:43:54.39
IV.MPNC.HHN. ML:1.6 0.0001969214 0.4096 AML other m 2021-11-22T16:44:00.41
IV.MPNC.HHE. ML:1.3 0.00010845 0.36 AML other m 2021-11-22T16:44:01.01
TV.GMB1.HNE. ML:1 7.7927055E-5 0.1408 AML other m 2021-11-22T16:43:56.87
TV.GMB1.HNN. ML:1 9.0260205E-5 0.1408 AML other m 2021-11-22T16:43:58.12
TV.GMB1.HHE. ML:0.4 2.3397285E-5 0.1408 AML other m 2021-11-22T16:43:56.87
TV.GMB1.HHN. ML:0.5 3.043348E-5 0.1408 AML other m 2021-11-22T16:43:58.13
MN.CEL.HNE. ML:0.9 3.913378E-5 0.512 AML other m 2021-11-22T16:44:01.08
MN.CEL.HHE. ML:0.8 3.7109755E-5 0.1664 AML other m 2021-11-22T16:44:00.99
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download