Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 30-08-2021 and time 02:53:43 (Italy) in region Maropati (RC)

A magnitude ML 1.7 earthquake occured in region: Maropati (RC), on

  • 30-08-2021 00:53:43 (UTC)
  • 30-08-2021 02:53:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.4430, 16.0950 at 16 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Maropati RC 0 1524 1524
Anoia RC 1 2212 3736
Galatro RC 2 1709 5445
Cinquefrondi RC 3 6539 11984
Melicucco RC 3 5101 17085
Feroleto della Chiesa RC 3 1695 18780
Polistena RC 4 10496 29276
Giffone RC 5 1907 31183
Laureana di Borrello RC 5 5174 36357
San Giorgio Morgeto RC 6 3058 39415
Candidoni RC 7 416 39831
Serrata RC 8 845 40676
San Pietro di Caridà RC 10 1195 41871
Cittanova RC 10 10410 52281
Dinami VV 11 2168 54449
Rosarno RC 11 14841 69290
Taurianova RC 12 15636 84926
Rizziconi RC 12 7829 92755
Acquaro VV 15 2484 95239
Terranova Sappo Minulio RC 15 523 95762
Mammola RC 16 2847 98609
San Calogero VV 16 4315 102924
Molochio RC 16 2564 105488
San Ferdinando RC 16 4490 109978
Dasà VV 16 1208 111186
Canolo RC 17 746 111932
Arena VV 17 1456 113388
Grotteria RC 17 3154 116542
Varapodio RC 17 2160 118702
Gioia Tauro RC 17 19864 138566
Limbadi VV 17 3695 142261
San Giovanni di Gerace RC 18 481 142742
Nicotera VV 18 6290 149032
Mileto VV 18 6763 155795
Fabrizia VV 19 2195 157990
Rombiolo VV 19 4569 162559
Oppido Mamertina RC 19 5332 167891
Agnana Calabra RC 19 562 168453
Antonimina RC 19 1317 169770
Gerocarne VV 20 2248 172018
Martone RC 20 530 172548
Francica VV 20 1651 174199

Municipalities with at least 50000 inhabitants

An earthquake occurred to
54 Km NE of Reggio di Calabria (183035 inhabitants)
55 Km NE of Messina (238439 inhabitants)
62 Km SW of Lamezia Terme (70714 inhabitants)
67 Km SW of Catanzaro (90612 inhabitants)
96 Km S of Cosenza (67546 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.7 2021-08-30
00:53:43		 38.4428 16.0952 16 2021-12-29
11:12:26		 Bollettino Sismico Italiano INGV 95113021
Reviewed
Rev100 		ML 1.5 2021-08-30
00:53:43		 38.4472 16.096 16 2021-08-30
00:58:25		 Sala Sismica INGV-Roma 94805781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-30 00:53:43 ± 0.08
Latitude 38.4428 ± 0.0036
Longitude 16.0952 ± 0.0057
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95113021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 499
Semi-minor axis of confidence ellipse (meter) 109
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 267
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
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) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.02788
Epicentral distance of station farthest from the epicenter (degree) 0.81479
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 95113021
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-06 14:13:05

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 94805781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-30 00:58:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GRI.EHZ. 2021-08-30T00:53:59.62 0.3 undecidable manual S 34 50.616 97 -0.41 64
IV.CAR1.HHZ. 2021-08-30T00:53:59.53 0.3 undecidable manual P 6 90.4428 94 0.17 62
IV.SOI.EHZ. 2021-08-30T00:53:57.28 0.3 undecidable manual S 185 41.1255 100 -0.25 67
IV.GIZZ.HHZ. 2021-08-30T00:53:55.16 0.1 undecidable manual P 9 60.3951 96 0.43 82
IV.MTTG.HHE. 2021-08-30T00:53:54.85 0.3 undecidable manual P 215 59.6958 96 0.22 65
IV.PLAC.HHZ. 2021-08-30T00:53:54.65 0.3 undecidable manual S 89 29.8479 105 0.08 71
IV.MSRU.HHZ. 2021-08-30T00:53:54.03 0.3 undecidable manual P 249 54.8007 97 0.15 66
IV.JOPP.HHZ. 2021-08-30T00:53:53.31 0.1 undecidable manual S 315 25.752 109 -0.21 92
IV.GRI.EHZ. 2021-08-30T00:53:53.01 0.3 undecidable manual P 34 50.616 97 -0.23 66
IV.SOI.EHZ. 2021-08-30T00:53:51.83 0.1 positive manual P 185 41.1255 100 0.03 93
IV.PLAC.HHZ. 2021-08-30T00:53:50.13 0.1 negative manual P 89 29.8479 105 0.04 95
IV.FERC.HNZ. 2021-08-30T00:53:49.25 0.1 undecidable manual S 69 3.0969 167 0.05 100
IV.JOPP.HHZ. 2021-08-30T00:53:49.39 0.1 negative manual P 315 25.752 109 -0.1 95
IV.FERC.HNZ. 2021-08-30T00:53:47.01 0.1 undecidable manual P 69 3.0969 167 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLAC.HHE. ML:1.2 0.00007664999999999999 1.42 AML other m 2021-08-30T00:53:54.72
IV.PLAC.HHN. ML:1.7 0.000231 0.48 AML other m 2021-08-30T00:53:55.23
IV.GRI.EHE. ML:1.8 0.0001515 0.34 AML other m 2021-08-30T00:54:01.17
IV.GRI.EHN. ML:1.6 0.0001027 0.34 AML other m 2021-08-30T00:54:01.55
IV.MSRU.HHE. ML:1.8 0.00015754545 0.34 AML other m 2021-08-30T00:54:03.54
IV.MSRU.HHN. ML:1.8 0.0001613763 0.4 AML other m 2021-08-30T00:54:03.37
IV.CAR1.HHE. ML:1.6 0.000038152895000000005 1.9 AML other m 2021-08-30T00:54:13.14
IV.CAR1.HNE. ML:1.6 0.00004978518 1.78 AML other m 2021-08-30T00:54:13.54
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