Earthquake with magnitude of ML 1.7 on date 23-06-2021 and time 13:56:50 (Italy) in region 2 km NE Longobucco (CS)

A magnitude ML 1.7 earthquake occured in region: 2 km NE Longobucco (CS), on

  • 23-06-2021 11:56:50 (UTC)
  • 23-06-2021 13:56:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.46, 16.633 at 38 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
Longobucco CS 2 3183 3183
Paludi CS 9 1062 4245
Cropalati CS 10 1084 5329
Bocchigliero CS 12 1298 6627
Caloveto CS 12 1263 7890
Rossano CS 13 36842 44732
Pietrapaola CS 16 1141 45873
Crosia CS 17 9762 55635
Campana CS 18 1813 57448
Mandatoriccio CS 18 2872 60320
Corigliano Calabro CS 18 40427 100747
Calopezzati CS 18 1369 102116

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NE of Cosenza (67546 inhabitants)
60 Km NW of Crotone (62178 inhabitants)
60 Km NE of Lamezia Terme (70714 inhabitants)
62 Km N of Catanzaro (90612 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 1.7 2021-06-23
11:56:50
39.4605 16.6333 38 2021-06-23
12:04:39
Sala Sismica INGV-Roma 91765861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-23 11:56:50 ± 0.11
Latitude 39.4605 ± 0.0090
Longitude 16.6333 ± 0.0140
Depth (km) 38 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 91765861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1150
Semi-minor axis of confidence ellipse (meter) 1010
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 279
Circular confidence region, given by single value of horizontal uncertainty (meter) 1150
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 201
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.47754
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 91765861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-23 12:04:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
HL.VLS.HHZ. 2021-06-23T11:57:52.20 3.0 negative manual Pg 19.17 0
MN.TRI.HHZ. 2021-06-23T11:57:46.97 3.0 undecidable manual Sg 8.49 0
IV.SBPO.HNZ. 2021-06-23T11:57:37.93 3.0 undecidable manual Sn -1.65 0
IV.HVIT.HHZ. 2021-06-23T11:57:26.74 3.0 undecidable manual Pg 12.22 0
IV.HPAC.HHZ. 2021-06-23T11:57:24.87 3.0 negative manual Pg 5.79 0
GU.GBOS.HHZ. 2021-06-23T11:57:21.64 3.0 undecidable manual Pg 9.08 0
IV.SERS.HHZ. 2021-06-23T11:57:07.98 0.6 undecidable manual S 174 0.4263 90 -0.29 46
IV.LADO.EHZ. 2021-06-23T11:57:06.02 0.6 undecidable manual S 123 0.3202 116 0.18 48
MN.TIP.HHZ. 2021-06-23T11:57:05.41 0.3 undecidable manual S 161 0.2968 121 0.06 73
IV.PIPA.HHZ. 2021-06-23T11:57:02.72 0.6 undecidable manual S 80 0.143 149 -0.03 51
IV.CELI.HHZ. 2021-06-23T11:57:02.42 0.3 undecidable manual S 239 0.1124 156 0.01 77
IV.SELL.HHZ. 2021-06-23T11:57:01.96 0.3 undecidable manual P 181 0.4775 90 0.36 67
IV.VOBA.EHZ. 2021-06-23T11:57:01.94 3.0 negative manual Pn -2.33 0
IV.SERS.HHZ. 2021-06-23T11:57:00.95 0.3 positive manual P 174 0.4263 90 0.05 72
IV.LADO.EHZ. 2021-06-23T11:56:59.26 0.1 undecidable manual P 123 0.3202 116 -0.23 94
MN.TIP.HHZ. 2021-06-23T11:56:59.02 0.6 positive manual P 161 0.2968 121 -0.19 48
IV.CELI.HHZ. 2021-06-23T11:56:57.36 0.6 undecidable manual P 239 0.1124 156 -0.16 50
IV.PIPA.HHZ. 2021-06-23T11:56:57.83 0.1 negative manual P 80 0.143 149 0.12 100
IV.SOLUN.HHZ. 2021-06-23T11:56:53.64 3.0 undecidable manual Pn -5.64 0
GU.CARD.HHZ. 2021-06-23T11:56:51.99 3.0 undecidable manual Pg 3.6 0
IV.BDI.HHZ. 2021-06-23T11:56:44.31 3.0 undecidable manual Pn -3.5 0
IV.PZUN.HHZ. 2021-06-23T11:56:31.57 3.0 positive manual Pg -0.79 0
OT.OT13.EHZ. 2021-06-23T11:56:25.21 3.0 positive manual Pn -2.92 0
IV.CIGN.HHZ. 2021-06-23T11:56:24.83 3.0 undecidable manual S -3.93 0
IV.SGRT.HHZ. 2021-06-23T11:56:23.65 3.0 undecidable manual P -0.37 0
IV.MSAG.HHZ. 2021-06-23T11:56:22.60 3.0 undecidable manual Pn -3.22 0
IV.MNTT.EHZ. 2021-06-23T11:56:17.92 3.0 negative manual P -0.78 0
IV.VIVA.HHZ. 2021-06-23T11:56:11.10 3.0 undecidable manual P -5.35 0
IV.PTRJ.HHZ. 2021-06-23T11:56:10.90 3.0 negative manual P -4.43 0
IV.FAGN.HHZ. 2021-06-23T11:56:04.09 3.0 negative manual P -1.42 0
IV.INTR.HHZ. 2021-06-23T11:55:59.21 3.0 undecidable manual P -1.68 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CELI.HHN. ML:1.4 8.753231E-5 0.32 AML other m 2021-06-23T11:57:02.63
IV.CELI.HHE. ML:1.4 8.1E-5 1.3 AML other m 2021-06-23T11:57:02.92
IV.PIPA.HHE. ML:2.1 0.0004495 0.7 AML other m 2021-06-23T11:57:03.58
IV.PIPA.HNE. ML:2.1 0.000458 0.7 AML other m 2021-06-23T11:57:03.58
IV.PIPA.HHN. ML:2 0.000318 0.22 AML other m 2021-06-23T11:57:03.58
IV.LADO.EHN. ML:1.6 0.000104603025 6.0224 AML other m 2021-06-23T11:57:11.60
IV.LADO.EHE. ML:1.7 0.000124 1.24 AML other m 2021-06-23T11:57:13.80
IV.SERS.HHN. ML:1.1 2.327008E-5 1.1648 AML other m 2021-06-23T11:57:09.21
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