Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 20-06-2021 and time 06:20:49 (UTC) in region Adriatico Centrale (MARE)

A magnitude ML 2.4 earthquake occured in region: Adriatico Centrale (MARE), on

  • 20-06-2021 06:20:49 (UTC)
  • 20-06-2021 08:20:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6640, 16.1380 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.

Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.4 2021-06-20
06:20:49		 42.6643 16.1383 10 2021-12-29
11:12:25		 Bollettino Sismico Italiano INGV 95104011
Reviewed
Rev100 		ML 2.4 2021-06-20
06:20:49		 42.6952 16.1012 11 2021-06-20
06:36:20		 Sala Sismica INGV-Roma 91585991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-20 06:20:49 ± 0.24
Latitude 42.6643 ± 0.0072
Longitude 16.1383 ± 0.0196
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95104011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1630
Semi-minor axis of confidence ellipse (meter) 666
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 287
Circular confidence region, given by single value of horizontal uncertainty (meter) 1630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 317
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.08728
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 91585991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-20 06:36:20

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 95104011
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-16 15:02:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.QLNO.HHZ. 2021-06-20T06:22:53.31 3.0 undecidable manual Pg 25.35 0
ST.OZOL.EHZ. 2021-06-20T06:22:38.94 3.0 positive manual Pg 17.120001 0
GU.CANO.HHZ. 2021-06-20T06:22:32.27 3.0 positive manual Pn 3.79 0
IV.SACS.HNZ. 2021-06-20T06:22:27.36 3.0 undecidable manual Sn 1.16 0
IV.GIZZ.HHZ. 2021-06-20T06:22:25.22 3.0 undecidable manual Sn 0.23 0
RF.GEPF.HHZ. 2021-06-20T06:22:23.23 3.0 undecidable manual Pg 14.21 0
OX.CIMO.HHZ. 2021-06-20T06:22:22.72 3.0 negative manual Pg 9.94 0
IV.EFIU.HHZ. 2021-06-20T06:22:19.29 3.0 negative manual Pg 15.01 0
IV.MTGR.HHZ. 2021-06-20T06:22:09.74 3.0 undecidable manual Pn -2.1 0
IV.CSP1.EHZ. 2021-06-20T06:22:04.85 3.0 undecidable manual Sn -1.13 0
IV.RIBO.EHZ.01 2021-06-20T06:22:04.28 3.0 undecidable manual Pg 7.44 0
IV.PP3.EHZ. 2021-06-20T06:22:03.46 3.0 undecidable manual Sn 0.27 0
IV.TERO.HHZ. 2021-06-20T06:21:53.90 3.0 undecidable manual Sn -1.37 0
IV.BADI.EHZ. 2021-06-20T06:21:47.75 3.0 negative manual Pn -0.08 0
IV.PP3.EHZ. 2021-06-20T06:21:40.85 3.0 positive manual Pg 5.75 0
IV.VVLD.HHZ. 2021-06-20T06:21:35.49 3.0 positive manual Pg 5.8 0
IV.LRP.EHZ. 2021-06-20T06:21:30.22 3.0 positive manual Pn -0.42 0
OT.OT07.EHZ. 2021-06-20T06:21:23.93 0.6 undecidable manual S 197 120.6903 50 -0.27 47
OT.OT06.EHZ. 2021-06-20T06:21:23.44 0.3 undecidable manual S 203 117.3936 50 0.12 74
OT.OT04.EHZ. 2021-06-20T06:21:22.34 0.3 undecidable manual S 204 114.3966 50 -0.17 74
OT.OT12.EHZ. 2021-06-20T06:21:22.40 0.6 undecidable manual S 189 116.0949 50 -0.56 44
IV.MIDA.HHZ. 2021-06-20T06:21:22.28 3.0 undecidable manual P -1.79 0
OT.OT03.EHZ. 2021-06-20T06:21:22.02 0.6 undecidable manual S 201 112.998 50 -0.12 50
IV.APRC.HHZ. 2021-06-20T06:21:21.99 0.3 undecidable manual S 206 111.8991 50 0.16 74
IV.SGRT.HHZ. 2021-06-20T06:21:20.80 0.3 undecidable manual S 198 106.0161 50 0.53 69
IV.MSAG.HHZ. 2021-06-20T06:21:20.46 0.6 undecidable manual S 190 107.3148 50 -0.16 50
IV.GATE.HHZ. 2021-06-20T06:21:19.12 3.0 positive manual P 0.36 0
IV.TST02.HHZ. 2021-06-20T06:21:19.92 3.0 undecidable manual P -1.98 0
OT.OT14.EHZ. 2021-06-20T06:21:15.60 0.3 undecidable manual S 193 87.246 50 0.34 75
OT.OT13.EHZ. 2021-06-20T06:21:15.02 0.3 undecidable manual S 178 86.9463 50 -0.18 78
IV.TREM.HNZ. 2021-06-20T06:21:13.00 0.6 undecidable manual S 221 79.0653 50 -0.09 53
IV.STON.BHZ. 2021-06-20T06:21:13.91 3.0 undecidable manual P 0
OT.OT06.EHZ. 2021-06-20T06:21:09.29 0.3 undecidable manual P 203 117.3936 50 0.36 70
OT.OT07.EHZ. 2021-06-20T06:21:09.59 0.3 undecidable manual P 197 120.6903 50 0.15 73
OT.OT03.EHZ. 2021-06-20T06:21:08.20 0.3 undecidable manual P 201 112.998 50 -0.05 76
OT.OT04.EHZ. 2021-06-20T06:21:08.09 0.3 undecidable manual P 204 114.3966 50 -0.37 70
OT.OT12.EHZ. 2021-06-20T06:21:08.74 0.3 undecidable manual P 189 116.0949 50 0.01 76
IV.APRC.HHZ. 2021-06-20T06:21:08.12 0.3 undecidable manual P 206 111.8991 50 0.05 76
IV.MSAG.HHZ. 2021-06-20T06:21:07.23 0.1 undecidable manual P 190 107.3148 50 -0.14 100
IV.SGRT.HHZ. 2021-06-20T06:21:06.84 0.3 undecidable manual P 198 106.0161 50 -0.33 72
OT.OT13.EHZ. 2021-06-20T06:21:04.78 0.3 undecidable manual P 178 86.9463 50 0.54 71
OT.OT14.EHZ. 2021-06-20T06:21:04.14 0.3 undecidable manual P 193 87.246 50 -0.14 78
IV.TREM.HNZ. 2021-06-20T06:21:03.03 0.3 undecidable manual P 221 79.0653 50 0.01 82
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OT.OT13.EHN. ML:2.8 0.000814 0.66 AML other m 2021-06-20T06:21:17.48
OT.OT13.EHE. ML:2.6 0.000513 0.44 AML other m 2021-06-20T06:21:18.49
IV.SGRT.HHN. ML:2.3 0.0001815 0.86 AML other m 2021-06-20T06:21:21.97
IV.MSAG.HNE. ML:2.2 0.000129 1.2 AML other m 2021-06-20T06:21:21.36
IV.SGRT.HHE. ML:2.3 0.0001915 0.24 AML other m 2021-06-20T06:21:22.42
IV.APRC.HHE. ML:2.8 0.0005719999999999999 0.32 AML other m 2021-06-20T06:21:23.63
IV.APRC.HHN. ML:2.7 0.0003965 0.32 AML other m 2021-06-20T06:21:24.35
IV.MSAG.HHE. ML:1.7 0.00004745 0.42 AML other m 2021-06-20T06:21:24.61
IV.MSAG.HHN. ML:2.2 0.0001295 0.44 AML other m 2021-06-20T06:21:27.64
IV.MSAG.HNN. ML:2.6 0.00032450000000000003 0.44 AML other m 2021-06-20T06:21:27.64
IV.GATE.HHE. ML:1.9 0.00003315 0.6 AML other m 2021-06-20T06:21:41.24
IV.GATE.HHN. ML:1.9 0.0000365 0.58 AML other m 2021-06-20T06:21:48.29
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
Waveforms Seismic signals in miniseed + resp format Download