Earthquake with magnitude of ML 1.3 on date 23-08-2021 and time 19:50:53 (UTC) in region 12 km NW San Giovanni in Fiore (CS)

A magnitude ML 1.3 earthquake occured in region: 12 km NW San Giovanni in Fiore (CS), on

  • 23-08-2021 19:50:53 (UTC)
  • 23-08-2021 21:50:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.338, 16.603 at 11 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
San Giovanni in Fiore CS 12 17372 17372
Longobucco CS 12 3183 20555
Savelli KR 16 1271 21826
Castelsilano KR 16 1015 22841
Bocchigliero CS 16 1298 24139
Cotronei KR 18 5480 29619
Cerenzia KR 19 1152 30771
Caccuri KR 20 1663 32434

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km E of Cosenza (67546 inhabitants)
47 Km NE of Lamezia Terme (70714 inhabitants)
48 Km N of Catanzaro (90612 inhabitants)
53 Km NW of Crotone (62178 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 1.3 2021-08-23
19:50:53
39.338 16.6028 11 2021-08-23
19:58:05
Sala Sismica INGV-Roma 94547891
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-23 19:50:53 ± 0.13
Latitude 39.3380 ± 0.0018
Longitude 16.6028 ± 0.0012
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94547891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 230
Semi-minor axis of confidence ellipse (meter) 120
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 19
Circular confidence region, given by single value of horizontal uncertainty (meter) 230
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.5351
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 94547891
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-23 19:58:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.VVLD.HHZ. 2021-08-23T19:52:38.02 3.0 undecidable manual Sg 8.64 0
IV.RIBO.EHZ.01 2021-08-23T19:52:35.95 3.0 negative manual Pg 19.389999 0
IV.LRP.EHZ. 2021-08-23T19:52:26.18 3.0 undecidable manual Sn 0.21 0
IV.ATMI.HHZ. 2021-08-23T19:52:16.97 3.0 positive manual Pn 5.6 0
IV.RESU.HHZ. 2021-08-23T19:52:11.23 3.0 undecidable manual Sg 0.66 0
AC.VLO.HHZ. 2021-08-23T19:52:09.91 3.0 undecidable manual Sg 2.13 0
IV.SRES.HHZ. 2021-08-23T19:52:09.20 3.0 undecidable manual Pg 10.31 0
IX.PGN3.HHZ.02 2021-08-23T19:51:39.06 3.0 undecidable manual S -1.05 0
IV.ECTS.HHZ. 2021-08-23T19:51:22.80 3.0 undecidable manual Pn -3.5 0
IV.CET2.HHZ. 2021-08-23T19:51:11.92 0.3 undecidable manual S 291 0.5351 90 0.32 67
IV.SELL.HHZ. 2021-08-23T19:51:07.11 0.3 undecidable manual S 177 0.3552 90 0.84 57
IV.TDS.HHZ. 2021-08-23T19:51:06.56 0.3 undecidable manual S 328 0.3813 90 -0.47 59
IV.SERS.HHZ. 2021-08-23T19:51:05.06 0.3 undecidable manual S 168 0.3094 90 0.17 71
IV.CAR1.HHZ. 2021-08-23T19:51:05.74 0.6 undecidable manual S 255 0.3139 90 0.69 42
IV.CET2.HHZ. 2021-08-23T19:51:04.05 0.1 undecidable manual P 291 0.5351 90 0.19 92
IV.GIZZ.HHZ. 2021-08-23T19:51:03.19 0.1 undecidable manual P 221 0.4712 90 0.43 87
IV.PIPA.HHZ. 2021-08-23T19:51:03.20 0.3 undecidable manual S 48 0.2203 90 0.93 62
IV.SPS2.HHZ. 2021-08-23T19:51:02.25 0.3 undecidable manual S 257 0.2095 90 0.31 71
MN.TIP.HHZ. 2021-08-23T19:51:01.48 0.3 undecidable manual S 143 0.1988 90 -0.16 71
IV.SELL.HHZ. 2021-08-23T19:51:00.96 0.1 undecidable manual P 177 0.3552 90 0.18 94
IV.TDS.HHZ. 2021-08-23T19:51:00.60 0.1 undecidable manual P 328 0.3813 90 -0.62 75
IV.CAR1.HHZ. 2021-08-23T19:50:59.91 0.1 undecidable manual P 255 0.3139 90 -0.17 91
IV.SERS.HHZ. 2021-08-23T19:50:59.99 0.1 undecidable manual P 168 0.3094 90 0 95
IV.CELI.HHZ. 2021-08-23T19:50:58.82 0.1 undecidable manual S 312 0.0971 115 0.17 100
IV.PIPA.HHZ. 2021-08-23T19:50:57.69 0.1 undecidable manual P 48 0.2203 90 -0.79 72
MN.TIP.HHZ. 2021-08-23T19:50:57.99 0.1 undecidable manual P 143 0.1988 90 -0.11 95
IV.SPS2.HHZ. 2021-08-23T19:50:57.50 0.6 negative manual P 257 0.2095 90 -0.78 38
IV.CELI.HHZ. 2021-08-23T19:50:56.33 1.0 undecidable manual P 312 0.0971 115 -0.05 24
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.TIP.HHE. ML:1 6.0449045E-5 0.1664 AML other m 2021-08-23T19:51:01.66
MN.TIP.HHN. ML:1 6.97E-5 1.32 AML other m 2021-08-23T19:51:02.67
IV.SPS2.HHN. ML:1.2 0.000101125375 0.256 AML other m 2021-08-23T19:51:02.53
IV.SPS2.HHE. ML:1.2 9.915E-5 1.72 AML other m 2021-08-23T19:51:03.88
IV.PIPA.HHN. ML:1.8 0.00033791555 0.384 AML other m 2021-08-23T19:51:04.09
IV.PIPA.HNN. ML:1.8 0.0003615 0.4 AML other m 2021-08-23T19:51:04.08
IV.PIPA.HNE. ML:1.9 0.0004539986 0.2176 AML other m 2021-08-23T19:51:04.38
IV.PIPA.HHE. ML:1.9 0.000499 0.22 AML other m 2021-08-23T19:51:04.39
IV.SERS.HHN. ML:1.1 5.5496475E-5 0.2688 AML other m 2021-08-23T19:51:05.92
IV.SERS.HHE. ML:1.2 6.645E-5 0.64 AML other m 2021-08-23T19:51:05.50
IV.CAR1.HHN. ML:1.3 7.98E-5 0.28 AML other m 2021-08-23T19:51:06.49
IV.CAR1.HHE. ML:1.3 7.73E-5 1.66 AML other m 2021-08-23T19:51:06.99
IV.SELL.HHN. ML:1.2 5.635E-5 0.34 AML other m 2021-08-23T19:51:07.74
IV.SELL.HNN. ML:1.8 0.0002074796 0.3584 AML other m 2021-08-23T19:51:07.57
IV.SELL.HNE. ML:1.8 0.0002295 0.44 AML other m 2021-08-23T19:51:09.02
IV.SELL.HHE. ML:1.2 6.12E-5 0.44 AML other m 2021-08-23T19:51:09.25
IV.TDS.HHN. ML:1 3.4946955E-5 0.3072 AML other m 2021-08-23T19:51:09.34
IV.TDS.HHE. ML:1 3.245E-5 0.42 AML other m 2021-08-23T19:51:09.48
IV.CET2.HHE. ML:1.3 3.994496E-5 0.2176 AML other m 2021-08-23T19:51:15.12
IV.CET2.HHN. ML:1.5 6.764724E-5 0.4096 AML other m 2021-08-23T19:51:16.37
IV.CELI.HHE. ML:1.5 0.0003655946 0.256 AML other m 2021-08-23T19:50:59.03
IV.CELI.HHN. ML:1.6 0.00053767215 0.2432 AML other m 2021-08-23T19:50:59.18
IV.CELI.HNE. ML:1.5 0.00034484175 0.256 AML other m 2021-08-23T19:50:59.03
IV.CELI.HNN. ML:1.6 0.0005209492 0.2432 AML other m 2021-08-23T19:50:59.18
MN.TIP.HNE. ML:1.1 7.961961615E-5 1.0368 AML other m 2021-08-23T19:51:10.87
MN.TIP.HNN. ML:1.1 7.2625135E-5 0.2432 AML other m 2021-08-23T19:51:01.66
IV.CAR1.HNE. ML:1.3 8.295788E-5 0.2304 AML other m 2021-08-23T19:51:06.89
IV.CAR1.HNN. ML:1.3 8.719749E-5 0.2688 AML other m 2021-08-23T19:51:06.50
IV.SERS.HNE. ML:1.2 6.2898E-5 0.2688 AML other m 2021-08-23T19:51:05.92
IV.SERS.HNN. ML:1.1 5.6167235E-5 0.192 AML other m 2021-08-23T19:51:05.96
IV.ECTS.HHE. ML:2 2.7269765E-5 0.064 AML other m 2021-08-23T19:51:30.76
IV.ECTS.HHN. ML:2.6 9.9440155E-5 0.064 AML other m 2021-08-23T19:51:30.81
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