Earthquake with magnitude of ML 1.6 on date 25-10-2021 and time 03:58:05 (Italy) in region 4 km SE Polia (VV)

A magnitude ML 1.6 earthquake occured in region: 4 km SE Polia (VV), on

  • 25-10-2021 01:58:05 (UTC)
  • 25-10-2021 03:58:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.721, 16.344 at 10 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
Polia VV 4 1023 1023
Monterosso Calabro VV 5 1729 2752
San Vito sullo Ionio CZ 6 1811 4563
Capistrano VV 6 1042 5605
Cenadi CZ 6 563 6168
Olivadi CZ 7 529 6697
Chiaravalle Centrale CZ 7 5759 12456
Centrache CZ 8 401 12857
Torre di Ruggiero CZ 8 1033 13890
San Nicola da Crissa VV 8 1335 15225
Filadelfia VV 8 5384 20609
Francavilla Angitola VV 9 1939 22548
Argusto CZ 9 522 23070
Vallelonga VV 9 706 23776
Cardinale CZ 9 2188 25964
Palermiti CZ 10 1213 27177
Filogaso VV 11 1417 28594
Petrizzi CZ 12 1131 29725
Gagliato CZ 12 505 30230
Simbario VV 12 966 31196
Vallefiorita CZ 12 1771 32967
Amaroni CZ 12 1855 34822
Curinga CZ 12 6779 41601
Vazzano VV 13 1067 42668
Spadola VV 13 825 43493
Brognaturo VV 13 735 44228
Maierato VV 13 2188 46416
Satriano CZ 13 3448 49864
Montepaone CZ 14 5282 55146
Girifalco CZ 14 5945 61091
Pizzoni VV 14 1143 62234
San Pietro a Maida CZ 14 4200 66434
Jacurso CZ 15 624 67058
Gasperina CZ 15 2160 69218
Davoli CZ 15 5607 74825
Montauro CZ 15 1732 76557
Cortale CZ 15 2117 78674
San Sostene CZ 16 1370 80044
Maida CZ 16 4566 84610
Pizzo VV 16 9278 93888
Serra San Bruno VV 16 6734 100622
Squillace CZ 17 3608 104230
Soriano Calabro VV 17 2421 106651
Sorianello VV 17 1176 107827
Sant'Onofrio VV 18 3067 110894
Stalettì CZ 18 2433 113327
Gerocarne VV 18 2248 115575
Soverato CZ 18 9204 124779
Borgia CZ 19 7611 132390
Sant'Andrea Apostolo dello Ionio CZ 19 1937 134327
Stefanaconi VV 19 2494 136821

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km S of Lamezia Terme (70714 inhabitants)
30 Km SW of Catanzaro (90612 inhabitants)
64 Km S of Cosenza (67546 inhabitants)
79 Km SW of Crotone (62178 inhabitants)
90 Km NE of Messina (238439 inhabitants)
91 Km NE of Reggio di Calabria (183035 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 1.6 2021-10-25
01:58:05
38.7207 16.3442 10 2021-10-25
02:05:05
Sala Sismica INGV-Roma 96967831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-25 01:58:05 ± 0.08
Latitude 38.7207 ± 0.0027
Longitude 16.3442 ± 0.0069
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96967831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 558
Semi-minor axis of confidence ellipse (meter) 269
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 93
Circular confidence region, given by single value of horizontal uncertainty (meter) 560
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.69338
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 27
Type of magnitude ML
Reference to an origin 96967831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-25 02:05:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.LRP.EHZ. 2021-10-25T01:59:46.59 3.0 undecidable manual Sn 2.14 0
IV.MIDA.HHZ. 2021-10-25T01:59:32.63 3.0 undecidable manual Sn -4.99 0
IV.PAOL.HHZ. 2021-10-25T01:59:22.99 3.0 undecidable manual Sn 1.15 0
IV.MOCO.HHZ. 2021-10-25T01:59:20.46 3.0 undecidable manual Sn -4.18 0
IX.SNR3.EHZ.02 2021-10-25T01:58:41.62 3.0 positive manual Pn -0.06 0
IV.MILZ.HHZ. 2021-10-25T01:58:25.72 3.0 undecidable manual P 0.66 0
IV.CELI.HHZ. 2021-10-25T01:58:18.86 0.6 undecidable manual P 11 0.6934 50 0.11 45
IV.SELL.HHZ. 2021-10-25T01:58:18.46 0.3 undecidable manual S 40 0.3426 50 0.25 71
IV.GIZZ.HHZ. 2021-10-25T01:58:16.17 0.3 undecidable manual S 338 0.2797 50 -0.18 73
MN.TIP.HHZ. 2021-10-25T01:58:16.24 1.0 negative manual P 35 0.5603 50 -0.23 23
IV.PLAC.HHZ. 2021-10-25T01:58:16.13 0.3 undecidable manual S 165 0.2806 50 -0.25 72
IV.CAR1.HHZ. 2021-10-25T01:58:16.27 0.6 negative manual P 349 0.5423 50 0.1 47
IV.SPS2.HHE. 2021-10-25T01:58:16.57 0.6 undecidable manual P 360 0.5702 50 -0.07 47
IV.JOPP.HHZ. 2021-10-25T01:58:13.37 0.6 positive manual P 252 0.375 50 0.06 49
IV.SERS.HHZ. 2021-10-25T01:58:13.99 0.3 undecidable manual P 40 0.4137 50 0.03 73
IV.SELL.HHZ. 2021-10-25T01:58:12.69 0.1 undecidable manual P 40 0.3426 50 -0.06 98
IV.FERC.HHZ.00 2021-10-25T01:58:12.50 0.3 undecidable manual P 212 0.3166 50 0.19 72
IV.GIZZ.HHZ. 2021-10-25T01:58:11.58 0.6 undecidable manual P 338 0.2797 50 -0.1 49
IV.PLAC.HHZ. 2021-10-25T01:58:11.74 0.3 undecidable manual P 165 0.2806 50 0.05 75
IV.GRI.EHZ. 2021-10-25T01:58:10.74 0.1 undecidable manual S 30 0.1169 127 -0.18 100
IV.GRI.EHZ. 2021-10-25T01:58:08.74 0.1 undecidable manual P 30 0.1169 127 0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GRI.EHN. ML:1.9 0.0009432803 0.2192 AML other m 2021-10-25T01:58:11.08
IV.GRI.EHE. ML:1.9 0.00080075545 0.1008 AML other m 2021-10-25T01:58:11.17
IX.SNR3.EHN.02 ML:2.9 0.0001494689 0.08 AML other m 2021-10-25T01:58:44.60
IX.SNR3.EHE.02 ML:2.8 0.00012222755 0.08 AML other m 2021-10-25T01:58:44.59
IV.PLAC.HHE. ML:1.5 0.000138437725 0.9616 AML other m 2021-10-25T01:58:16.43
IV.PLAC.HHN. ML:1.9 0.0003435085 0.2 AML other m 2021-10-25T01:58:16.96
IV.PLAC.HNE. ML:1.8 0.0003188072 0.2608 AML other m 2021-10-25T01:58:17.90
IV.PLAC.HNN. ML:1.9 0.00034278745 0.1904 AML other m 2021-10-25T01:58:16.96
IV.FERC.HHE.00 ML:3.5 0.01269932 1.3792 AML other m 2021-10-25T01:58:17.88
IV.SELL.HHE. ML:1.1 4.2665975E-5 0.4 AML other m 2021-10-25T01:58:18.77
IV.SELL.HHN. ML:1 3.8371575E-5 0.48 AML other m 2021-10-25T01:58:19.01
IV.JOPP.HHN. ML:1.6 0.000133545245 0.1216 AML other m 2021-10-25T01:58:20.84
IV.JOPP.HNE. ML:1.6 0.00012224637 0.2096 AML other m 2021-10-25T01:58:22.52
IV.JOPP.HNN. ML:1.6 0.00012797808 0.2512 AML other m 2021-10-25T01:58:21.60
IV.SERS.HHE. ML:1.3 5.4353375E-5 0.48 AML other m 2021-10-25T01:58:21.09
IV.SERS.HHN. ML:1.2 4.6963285E-5 0.2992 AML other m 2021-10-25T01:58:21.27
IV.SERS.HNE. ML:1.3 6.1866135E-5 0.5008 AML other m 2021-10-25T01:58:21.28
IV.SERS.HNN. ML:1.4 7.2175975E-5 1.2 AML other m 2021-10-25T01:58:33.64
MN.TIP.HHE. ML:1.6 8.432837E-5 2.1008 AML other m 2021-10-25T01:58:32.23
MN.TIP.HHN. ML:1.6 7.5441745E-5 1.88 AML other m 2021-10-25T01:58:40.91
MN.TIP.HNE. ML:1.7 9.6666215E-5 1.4992 AML other m 2021-10-25T01:58:19.90
MN.TIP.HNN. ML:1.7 9.8354945E-5 1.1808 AML other m 2021-10-25T01:58:40.96
IV.CAR1.HHE. ML:1.5 5.7744325E-5 0.8592 AML other m 2021-10-25T01:58:36.86
IV.CAR1.HHN. ML:1.6 9.2352265E-5 0.4192 AML other m 2021-10-25T01:58:27.07
IV.CAR1.HNE. ML:1.7 0.00010482018 0.32 AML other m 2021-10-25T01:58:28.51
IV.CAR1.HNN. ML:1.6 9.163178E-5 0.32 AML other m 2021-10-25T01:58:26.69
IV.CELI.HHE. ML:1.6 6.581237E-5 1.3392 AML other m 2021-10-25T01:58:19.58
IV.CELI.HHN. ML:1.7 7.0149175E-5 1.68 AML other m 2021-10-25T01:58:44.13
IV.CELI.HNE. ML:1.7 8.136395E-5 2.08 AML other m 2021-10-25T01:58:27.56
IV.CELI.HNN. ML:1.8 8.6655265E-5 1.92 AML other m 2021-10-25T01:58:21.40
IV.MILZ.HHE. ML:2.7 0.0004693377 0.28 AML other m 2021-10-25T01:59:05.63
IV.MILZ.HHN. ML:2.6 0.00032073495 0.64 AML other m 2021-10-25T01:58:49.98
IX.SNR3.HNE.01 ML:3.2 0.00030507225 1.76 AML other m 2021-10-25T01:59:23.65
IX.SNR3.HNN.01 ML:3.1 0.00022295965 1.008 AML other m 2021-10-25T01:59:26.04
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