Earthquake with magnitude of ML 1.2 on date 25-08-2021 and time 06:46:59 (Italy) in region 3 km NW San Vincenzo La Costa (CS)

A magnitude ML 1.2 earthquake occured in region: 3 km NW San Vincenzo La Costa (CS), on

  • 25-08-2021 04:46:59 (UTC)
  • 25-08-2021 06:46:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.387, 16.129 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
San Vincenzo La Costa CS 3 2195 2195
Montalto Uffugo CS 3 19669 21864
San Benedetto Ullano CS 5 1555 23419
San Fili CS 6 2719 26138
Rende CS 8 35338 61476
Paola CS 8 16013 77489
Lattarico CS 9 4013 81502
Marano Marchesato CS 9 3553 85055
Fuscaldo CS 9 8140 93195
Rota Greca CS 9 1156 94351
Castrolibero CS 10 9894 104245
Marano Principato CS 10 3180 107425
San Lucido CS 11 6047 113472
San Martino di Finita CS 12 1100 114572
Falconara Albanese CS 13 1427 115999
Cerisano CS 13 3196 119195
Torano Castello CS 13 4614 123809
Cerzeto CS 14 1373 125182
Guardia Piemontese CS 14 1911 127093
Castiglione Cosentino CS 14 2896 129989
Rose CS 15 4373 134362
Mendicino CS 15 9450 143812
Cosenza CS 15 67546 211358
Luzzi CS 15 9396 220754
Mongrassano CS 16 1607 222361
Zumpano CS 17 2570 224931
San Pietro in Guarano CS 17 3663 228594
Carolei CS 17 3330 231924
Cervicati CS 17 829 232753
Fiumefreddo Bruzio CS 18 2994 235747
Lappano CS 18 941 236688
Rovito CS 19 3158 239846
San Marco Argentano CS 19 7424 247270
Acquappesa CS 19 1907 249177
Bisignano CS 20 10203 259380
Dipignano CS 20 4376 263756
Trenta CS 20 2633 266389

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km NW of Cosenza (67546 inhabitants)
49 Km NW of Lamezia Terme (70714 inhabitants)
67 Km NW of Catanzaro (90612 inhabitants)
92 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 1.2 2021-08-25
04:46:59
39.3868 16.1288 9 2021-08-25
04:57:16
Sala Sismica INGV-Roma 94608221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-25 04:46:59 ± 0.15
Latitude 39.3868 ± 0.0171
Longitude 16.1288 ± 0.0221
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94608221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2580
Semi-minor axis of confidence ellipse (meter) 375
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) 2580
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 163
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.14749
Epicentral distance of station farthest from the epicenter (degree) 0.41279
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 94608221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-25 04:57:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GRIS.EHZ. 2021-08-25T04:47:14.30 0.1 undecidable manual S 329 0.4128 50 -0.19 95
IV.CELI.HHZ. 2021-08-25T04:47:10.78 0.1 undecidable manual S 87 0.2941 50 -0.2 98
IV.GRIS.EHZ. 2021-08-25T04:47:08.34 0.6 negative manual P 329 0.4128 50 0.25 47
IV.CET2.HHZ. 2021-08-25T04:47:07.16 0.1 undecidable manual S 317 0.1952 113 -0.36 96
IV.CELI.HHZ. 2021-08-25T04:47:06.32 1.0 negative manual P 87 0.2941 50 0.25 24
IV.TDS.HHZ. 2021-08-25T04:47:06.87 0.6 negative manual P 30 0.3175 50 0.41 46
IV.CAR1.HHZ. 2021-08-25T04:47:05.65 0.1 undecidable manual S 154 0.1475 119 -0.21 100
IV.CET2.HHZ. 2021-08-25T04:47:04.47 0.1 positive manual P 317 0.1952 113 0.4 95
IV.CAR1.HHZ. 2021-08-25T04:47:03.47 0.6 undecidable manual P 154 0.1475 119 0.36 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAR1.HHN. ML:1.4 0.000217 1.3 AML other m 2021-08-25T04:47:05.91
IV.CAR1.HHE. ML:1 8.835E-5 1.76 AML other m 2021-08-25T04:47:06.90
IV.CET2.HHE. ML:1.2 0.0001155 0.58 AML other m 2021-08-25T04:47:07.64
IV.CET2.HHN. ML:1.5 0.000227 1.3 AML other m 2021-08-25T04:47:07.00
IV.CELI.HHN. ML:0.9 3.3E-5 1.6 AML other m 2021-08-25T04:47:10.99
IV.CELI.HHE. ML:0.8 2.895E-5 0.7 AML other m 2021-08-25T04:47:12.42
IV.GRIS.EHN. ML:1.2 4.755E-5 0.3 AML other m 2021-08-25T04:47:15.43
IV.GRIS.EHE. ML:1.2 4.745E-5 0.68 AML other m 2021-08-25T04:47:15.34
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