Earthquake with magnitude of ML 1.1 on date 25-08-2021 and time 13:05:57 (UTC) in region 14 km E Spezzano Piccolo (CS)

A magnitude ML 1.1 earthquake occured in region: 14 km E Spezzano Piccolo (CS), on

  • 25-08-2021 13:05:57 (UTC)
  • 25-08-2021 15:05:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.282, 16.504 at 16 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
Spezzano Piccolo CS 14 2079 2079
Serra Pedace CS 14 986 3065
Pedace CS 14 1907 4972
Pietrafitta CS 14 1310 6282
Celico CS 14 2802 9084
Spezzano della Sila CS 14 4541 13625
Casole Bruzio CS 15 2578 16203
Aprigliano CS 15 2890 19093
Parenti CS 15 2188 21281
Trenta CS 16 2633 23914
Rovito CS 16 3158 27072
Figline Vegliaturo CS 16 1137 28209
Cellara CS 16 504 28713
Piane Crati CS 16 1423 30136
Lappano CS 17 941 31077
San Giovanni in Fiore CS 17 17372 48449
Mangone CS 17 1891 50340
San Pietro in Guarano CS 18 3663 54003
Zumpano CS 18 2570 56573
Santo Stefano di Rogliano CS 19 1725 58298
Rogliano CS 19 5637 63935
Cotronei KR 20 5480 69415

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Cosenza (67546 inhabitants)
38 Km NE of Lamezia Terme (70714 inhabitants)
42 Km N of Catanzaro (90612 inhabitants)
58 Km W 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 1.1 2021-08-25
13:05:57
39.282 16.5038 16 2021-08-25
13:14:02
Sala Sismica INGV-Roma 94623621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-25 13:05:57 ± 0.1
Latitude 39.2820 ± 0.0054
Longitude 16.5038 ± 0.0070
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94623621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 772
Semi-minor axis of confidence ellipse (meter) 189
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 225
Circular confidence region, given by single value of horizontal uncertainty (meter) 770
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 16
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) 0.67989
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 16
Type of magnitude ML
Reference to an origin 94623621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-25 13:14:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MNTV.EHZ. 2021-08-25T13:07:37.74 3.0 undecidable manual Pn 1.43 0
GU.GRAM.HHZ. 2021-08-25T13:07:35.46 3.0 negative manual Pn 1.05 0
IV.BRSN.HNZ. 2021-08-25T13:07:22.59 3.0 negative manual Pn 3.42 0
IV.APEC.HHZ. 2021-08-25T13:07:21.29 3.0 negative manual Pg 12.1 0
IV.TST01.HHZ. 2021-08-25T13:07:20.75 3.0 undecidable manual Sg 9.91 0
IV.HVIT.HHZ. 2021-08-25T13:07:13.13 3.0 undecidable manual Sn 0.15 0
IV.RNI2.HHZ. 2021-08-25T13:07:13.89 3.0 undecidable manual Sn 1.28 0
IV.SRES.HHZ. 2021-08-25T13:06:54.96 3.0 positive manual Pn -0.42 0
IV.ACATE.EHZ. 2021-08-25T13:06:45.62 3.0 undecidable manual Pg 7.31 0
IV.PZUN.HHZ. 2021-08-25T13:06:33.90 3.0 undecidable manual Sn -0.29 0
IV.VBKN.HHZ. 2021-08-25T13:06:28.13 3.0 negative manual Pn 0.35 0
IV.EVRN.HHZ. 2021-08-25T13:06:26.52 3.0 positive manual Pn -0.37 0
IV.CET2.HHZ. 2021-08-25T13:06:14.67 0.3 undecidable manual S 300 0.491 96 0.51 63
IV.SELL.HHZ. 2021-08-25T13:06:09.76 0.6 undecidable manual S 162 0.3139 101 0.78 40
IV.GRIS.EHE. 2021-08-25T13:06:09.87 0.1 undecidable manual P 313 0.6799 94 -0.3 85
IV.SERS.HHZ. 2021-08-25T13:06:08.12 0.3 undecidable manual S 150 0.2842 103 -0.01 72
MN.TIP.HHZ. 2021-08-25T13:06:06.08 0.1 undecidable manual S 117 0.2221 109 -0.27 94
IV.CAR1.HHZ. 2021-08-25T13:06:06.72 0.3 undecidable manual S 263 0.2284 108 0.2 71
IV.CET2.HHZ. 2021-08-25T13:06:06.55 0.1 undecidable manual P 300 0.491 96 -0.4 86
IV.PIPA.HHE. 2021-08-25T13:06:04.37 0.1 undecidable manual P 50 0.3148 101 0.39 89
IV.SELL.HHZ. 2021-08-25T13:06:04.01 1.0 undecidable manual P 162 0.3139 101 0.05 24
IV.SPS2.HHZ. 2021-08-25T13:06:03.90 0.1 undecidable manual S 274 0.1277 128 0.02 99
IV.SERS.HHZ. 2021-08-25T13:06:03.35 1.0 undecidable manual P 150 0.2842 103 -0.12 24
IV.CELI.HHZ. 2021-08-25T13:06:03.78 0.1 undecidable manual S 2 0.1205 130 0.08 97
IV.CAR1.HHZ. 2021-08-25T13:06:02.36 1.0 undecidable manual P 263 0.2284 108 -0.18 24
MN.TIP.HHZ. 2021-08-25T13:06:02.26 0.1 negative manual P 117 0.2221 109 -0.18 95
IV.CELI.HHZ. 2021-08-25T13:06:00.78 0.1 undecidable manual P 2 0.1205 130 -0.13 99
IV.SPS2.HHZ. 2021-08-25T13:06:00.98 0.1 positive manual P 274 0.1277 128 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CELI.HHE. ML:1.3 0.0001635 0.28 AML other m 2021-08-25T13:06:03.84
IV.CELI.HHN. ML:1.3 0.000173 1.46 AML other m 2021-08-25T13:06:04.90
IV.SPS2.HHE. ML:0.9 6.785E-5 0.22 AML other m 2021-08-25T13:06:04.57
IV.SPS2.HHN. ML:1.1 9.59E-5 0.3 AML other m 2021-08-25T13:06:04.52
MN.TIP.HHN. ML:0.8 3.425E-5 0.2 AML other m 2021-08-25T13:06:06.14
MN.TIP.HHE. ML:1.2 8.89E-5 0.64 AML other m 2021-08-25T13:06:06.15
IV.CAR1.HHN. ML:1.2 7.66E-5 0.18 AML other m 2021-08-25T13:06:07.59
IV.CAR1.HHE. ML:1 5.365E-5 0.34 AML other m 2021-08-25T13:06:07.75
IV.SERS.HHE. ML:1 4.43E-5 0.26 AML other m 2021-08-25T13:06:08.19
IV.SERS.HHN. ML:1 4.56E-5 0.84 AML other m 2021-08-25T13:06:08.36
IV.SELL.HHN. ML:0.9 2.96E-5 0.54 AML other m 2021-08-25T13:06:13.02
IV.SELL.HHE. ML:0.8 2.515E-5 0.54 AML other m 2021-08-25T13:06:14.14
IV.CET2.HHN. ML:1.4 5.92E-5 0.18 AML other m 2021-08-25T13:06:16.41
IV.CET2.HHE. ML:1.2 4.085E-5 0.32 AML other m 2021-08-25T13:06:16.33
IV.VBKN.HHN. ML:4 0.00206 0.08 AML other m 2021-08-25T13:06:30.14
IV.VBKN.HHE. ML:4.1 0.002425 0.78 AML other m 2021-08-25T13:06:31.31
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