Earthquake with magnitude of ML 1.8 on date 17-10-2021 and time 08:30:07 (Italy) in region 1 km SE Oppido Mamertina (RC)

A magnitude ML 1.8 earthquake occured in region: 1 km SE Oppido Mamertina (RC), on

  • 17-10-2021 06:30:07 (UTC)
  • 17-10-2021 08:30:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.288, 15.991 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
Oppido Mamertina RC 1 5332 5332
Varapodio RC 3 2160 7492
Santa Cristina d'Aspromonte RC 4 929 8421
Terranova Sappo Minulio RC 4 523 8944
Molochio RC 4 2564 11508
Cosoleto RC 6 859 12367
Scido RC 7 931 13298
Taurianova RC 8 15636 28934
Delianuova RC 8 3352 32286
Platì RC 9 3812 36098
San Procopio RC 9 534 36632
Melicuccà RC 10 930 37562
Sinopoli RC 10 2089 39651
Cittanova RC 11 10410 50061
Seminara RC 12 2811 52872
Sant'Eufemia d'Aspromonte RC 12 4120 56992
Antonimina RC 14 1317 58309
Ciminà RC 14 568 58877
Rizziconi RC 14 7829 66706
Palmi RC 15 18930 85636
San Giorgio Morgeto RC 15 3058 88694
Polistena RC 15 10496 99190
Careri RC 16 2360 101550
Bagnara Calabra RC 17 10255 111805
Cinquefrondi RC 17 6539 118344
San Luca RC 17 3881 122225
Benestare RC 17 2556 124781
Melicucco RC 18 5101 129882
Gioia Tauro RC 18 19864 149746
Anoia RC 19 2212 151958
Canolo RC 19 746 152704
Ardore RC 19 5088 157792
Sant'Ilario dello Ionio RC 19 1377 159169
Portigliola RC 20 1201 160370
Maropati RC 20 1524 161894

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NE of Reggio di Calabria (183035 inhabitants)
39 Km E of Messina (238439 inhabitants)
82 Km SW of Lamezia Terme (70714 inhabitants)
87 Km SW of Catanzaro (90612 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 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 1.8 2021-10-17
06:30:07
38.2875 15.9912 9 2021-10-17
06:39:16
Sala Sismica INGV-Roma 96675001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-17 06:30:07 ± 0.1
Latitude 38.2875 ± 0.0054
Longitude 15.9912 ± 0.0092
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96675001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 780
Semi-minor axis of confidence ellipse (meter) 375
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 115
Circular confidence region, given by single value of horizontal uncertainty (meter) 780
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.28873
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 18
Type of magnitude ML
Reference to an origin 96675001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-17 06:39:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PTRP.HHZ. 2021-10-17T06:31:12.90 3.0 undecidable manual Sn 0.55 0
IV.CMDO.HHZ. 2021-10-17T06:31:06.93 3.0 undecidable manual Sg 2.91 0
AC.VLO.HHZ. 2021-10-17T06:31:01.08 3.0 undecidable manual Pn -0.04 0
IV.RESU.HHZ. 2021-10-17T06:30:55.95 3.0 undecidable manual Sg -2.05 0
IV.HLNI.HHZ. 2021-10-17T06:30:30.99 0.3 undecidable manual P 224 1.2887 50 0.22 57
IV.CAR1.HHZ. 2021-10-17T06:30:25.65 0.3 undecidable manual P 10 0.9803 50 0.16 62
IV.MPNC.HHZ. 2021-10-17T06:30:25.95 0.3 undecidable manual S 254 0.5207 50 0.6 61
IV.PLAC.HHZ. 2021-10-17T06:30:21.56 0.3 undecidable manual S 65 0.3858 50 0.2 70
IV.MTTG.HHZ. 2021-10-17T06:30:20.99 0.6 undecidable manual S 219 0.3651 50 0.26 46
IV.JOPP.HHZ. 2021-10-17T06:30:19.08 0.3 undecidable manual S 346 0.3292 50 -0.61 64
IV.MILZ.HHZ. 2021-10-17T06:30:18.65 0.3 undecidable manual P 269 0.5963 50 -0.27 66
IV.MPNC.HHZ. 2021-10-17T06:30:17.53 0.3 undecidable manual P 254 0.5207 50 -0.1 70
IV.FERC.HHZ.00 2021-10-17T06:30:15.61 0.3 undecidable manual S 33 0.197 113 0.27 72
IV.SOI.EHZ. 2021-10-17T06:30:15.82 0.3 undecidable manual S 167 0.2194 111 -0.34 70
IV.PLAC.HHZ. 2021-10-17T06:30:15.16 0.3 undecidable manual P 65 0.3858 50 -0.17 71
IV.MTTG.HHZ. 2021-10-17T06:30:14.92 0.3 undecidable manual P 219 0.3651 50 -0.05 73
IV.JOPP.HHZ. 2021-10-17T06:30:14.18 0.1 undecidable manual P 346 0.3292 50 -0.18 95
IV.SOI.EHZ. 2021-10-17T06:30:12.30 0.1 undecidable manual P 167 0.2194 111 -0.03 100
IV.FERC.HHZ.00 2021-10-17T06:30:12.04 0.1 undecidable manual P 33 0.197 113 0.19 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FERC.HHE.00 ML:3.1 0.009505 1.4 AML other m 2021-10-17T06:30:15.02
IV.SOI.EHE. ML:1.7 0.0003005 1.56 AML other m 2021-10-17T06:30:16.17
IV.FERC.HHN.00 ML:3.3 0.015 1.54 AML other m 2021-10-17T06:30:16.95
IV.SOI.EHN. ML:1.7 0.000325 0.6 AML other m 2021-10-17T06:30:16.31
IV.JOPP.HHN. ML:1.8 0.000245 0.42 AML other m 2021-10-17T06:30:19.99
IV.JOPP.HNN. ML:1.7 0.0002035 0.7 AML other m 2021-10-17T06:30:20.00
IV.JOPP.HNE. ML:1.6 0.000162 1.16 AML other m 2021-10-17T06:30:21.58
IV.JOPP.HHE. ML:1.5 0.00013 0.48 AML other m 2021-10-17T06:30:21.37
IV.MTTG.HHN. ML:1.6 0.0001245 0.76 AML other m 2021-10-17T06:30:21.61
IV.PLAC.HHE. ML:1.3 6.265E-5 0.48 AML other m 2021-10-17T06:30:22.59
IV.MTTG.HHE. ML:1.6 0.0001235 1.72 AML other m 2021-10-17T06:30:24.05
IV.PLAC.HHN. ML:1.5 0.000108 1.4 AML other m 2021-10-17T06:30:26.73
IV.MPNC.HHN. ML:2.2 0.000383 0.24 AML other m 2021-10-17T06:30:28.19
IV.MPNC.HHE. ML:2.3 0.0004165 1.36 AML other m 2021-10-17T06:30:28.85
IV.MILZ.HHE. ML:2.6 0.0008175 0.4 AML other m 2021-10-17T06:30:29.24
IV.MILZ.HHN. ML:2.3 0.000371 0.42 AML other m 2021-10-17T06:30:29.46
IV.CAR1.HHE. ML:1.7 3.915E-5 0.78 AML other m 2021-10-17T06:30:42.56
IV.CAR1.HHN. ML:1.8 6.185E-5 0.42 AML other m 2021-10-17T06:30:43.74
AC.VLO.HHE. ML:4 0.000611 0.18 AML other m 2021-10-17T06:32:04.58
AC.VLO.HHN. ML:4.2 0.000961 0.06 AML other m 2021-10-17T06:32:04.61
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