Earthquake with magnitude of ML 2.3 on date 23-08-2021 and time 10:37:49 (UTC) in region Adriatico Centrale (MARE)

A magnitude ML 2.3 earthquake occured in region: Adriatico Centrale (MARE), on

  • 23-08-2021 10:37:49 (UTC)
  • 23-08-2021 12:37:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5940, 15.0420 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.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
69 Km E of Pescara (121014 inhabitants)
74 Km E of Montesilvano (53738 inhabitants)
77 Km E of Chieti (51815 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 2.3 2021-08-23
10:37:49
42.5938 15.0418 10 2021-12-29
11:12:36
Bollettino Sismico Italiano INGV 96468491
Reviewed
Rev100
ML 2.3 2021-08-23
10:37:50
42.5542 15.0213 27 2021-08-23
11:01:24
Sala Sismica INGV-Roma 94538031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-23 10:37:49 ± 0.24
Latitude 42.5938 ± 0.0153
Longitude 15.0418 ± 0.0110
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 96468491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1750
Semi-minor axis of confidence ellipse (meter) 710
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) 1750.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 217
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 30
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) 0.58366
Epicentral distance of station farthest from the epicenter (degree) 1.43532
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 27
Type of magnitude ML
Reference to an origin 96468491
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-29 16:11:13

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 94538031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-23 11:01:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.OT12.EHZ. 2021-08-23T10:38:26.33 0.6 undecidable manual S 146 128.2716 50 0.25 60
IV.MSAG.HHZ. 2021-08-23T10:38:24.55 0.6 undecidable manual S 144 121.0899 50 0.41 59
IV.INTR.HHZ. 2021-08-23T10:38:21.96 0.6 undecidable manual S 236 113.4975 50 -0.16 63
IV.VCEL.EHZ. 2021-08-23T10:38:20.15 0.6 undecidable manual S 258 100.7214 50 1.44 39
OT.OT14.EHZ. 2021-08-23T10:38:20.73 0.6 undecidable manual S 137 105.0171 50 0.88 51
IV.APRC.HHZ. 2021-08-23T10:38:19.07 0.6 undecidable manual S 156 101.5206 50 0.14 65
IV.LPEL.HHZ. 2021-08-23T10:38:17.12 0.6 undecidable manual S 230 92.9403 50 0.48 61
IV.NRCA.HHZ. 2021-08-23T10:38:15.22 0.3 undecidable manual P 280 159.3183 50 -0.02 86
IV.TST02.HHZ. 2021-08-23T10:38:15.08 0.6 undecidable manual S 219 88.3449 50 -0.33 64
OT.OT16.EHZ. 2021-08-23T10:38:14.70 0.6 undecidable manual S 173 84.9483 50 0.21 66
OT.OT12.EHZ. 2021-08-23T10:38:10.80 0.3 undecidable manual P 146 128.2716 50 0.34 88
IV.TREM.HHZ. 2021-08-23T10:38:09.60 0.6 undecidable manual S 144 64.7907 50 0.48 65
OT.OT07.EHE. 2021-08-23T10:38:09.05 0.3 undecidable manual P 152 121.3896 50 -0.35 89
IV.MSAG.HHZ. 2021-08-23T10:38:09.12 0.3 undecidable manual P 144 121.0899 50 -0.22 92
IV.BSSO.HHE. 2021-08-23T10:38:09.31 0.6 undecidable manual P 198 121.989 50 -0.17 62
IV.TERO.HHN. 2021-08-23T10:38:08.46 1.0 undecidable manual P 272 117.4935 50 -0.32 30
IV.T0110.HHZ. 2021-08-23T10:38:08.14 0.6 undecidable manual P 249 111.2997 50 0.31 61
OT.OT06.EHZ. 2021-08-23T10:38:07.31 0.3 undecidable manual P 156 110.5005 50 -0.41 90
OT.OT14.EHZ. 2021-08-23T10:38:07.31 0.3 undecidable manual P 137 105.0171 50 0.44 90
IV.INTR.HHZ. 2021-08-23T10:38:07.80 0.6 undecidable manual P 236 113.4975 50 -0.37 60
OT.OT05.EHE. 2021-08-23T10:38:07.58 0.3 undecidable manual P 156 113.4975 50 -0.6 85
OT.OT03.EHE. 2021-08-23T10:38:07.77 0.6 undecidable manual P 153 109.8123 50 0.16 63
IV.APRC.HHZ. 2021-08-23T10:38:06.02 0.3 undecidable manual P 156 101.5206 50 -0.31 94
OT.OT04.EHE. 2021-08-23T10:38:06.40 0.3 undecidable manual P 155 106.6155 50 -0.72 82
IV.VCEL.EHZ. 2021-08-23T10:38:06.45 0.3 undecidable manual P 258 100.7214 50 0.24 95
IV.LPEL.HHZ. 2021-08-23T10:38:05.20 0.3 undecidable manual P 230 92.9403 50 0.19 98
IV.MELA.HNN. 2021-08-23T10:38:05.28 0.3 undecidable manual P 176 98.7234 50 -0.62 86
IV.TST02.HHZ. 2021-08-23T10:38:04.17 0.3 undecidable manual P 219 88.3449 50 -0.13 100
OT.OT16.EHZ. 2021-08-23T10:38:03.08 0.3 undecidable manual P 173 84.9483 50 -0.69 86
IV.TREM.HHZ. 2021-08-23T10:38:01.40 0.3 undecidable manual P 144 64.7907 50 0.73 88
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TREM.HHN. ML:2.3 0.000350783 0.384 AML other m 2021-08-23T10:38:12.83
IV.TREM.HNE. ML:2.4 0.0004307314 0.3776 AML other m 2021-08-23T10:38:12.78
IV.TREM.HHE. ML:2.3 0.00038500000000000003 0.38 AML other m 2021-08-23T10:38:12.78
IV.TREM.HNN. ML:2.3 0.00037481484999999997 0.3072 AML other m 2021-08-23T10:38:12.84
OT.OT16.EHE. ML:2.5 0.00038700000000000003 0.38 AML other m 2021-08-23T10:38:16.24
OT.OT16.EHN. ML:2.3 0.00024462365 0.1984 AML other m 2021-08-23T10:38:16.87
IV.TST02.HHE. ML:2.3 0.0002145 0.4 AML other m 2021-08-23T10:38:17.57
IV.TST02.HHN. ML:2.1 0.00015013104999999998 0.2624 AML other m 2021-08-23T10:38:18.56
IV.MELA.HHN. ML:2.3 0.0001905 0.96 AML other m 2021-08-23T10:38:19.99
IV.LPEL.HHN. ML:2.2 0.0001945 0.24 AML other m 2021-08-23T10:38:19.67
IV.LPEL.HNN. ML:2.2 0.0001879493 0.256 AML other m 2021-08-23T10:38:19.80
IV.LPEL.HNE. ML:2.4 0.00025097475000000004 0.2176 AML other m 2021-08-23T10:38:19.87
IV.LPEL.HHE. ML:2.4 0.00025256205 0.2176 AML other m 2021-08-23T10:38:19.76
IV.MELA.HHE. ML:2.4 0.0002855 0.44 AML other m 2021-08-23T10:38:20.40
IV.APRC.HHE. ML:2.4 0.00023349999999999998 1.12 AML other m 2021-08-23T10:38:21.01
IV.VCEL.EHE. ML:2.1 0.00011449999999999999 1.02 AML other m 2021-08-23T10:38:21.55
IV.APRC.HHN. ML:2.4 0.0002405 1.88 AML other m 2021-08-23T10:38:23.04
IV.VCEL.EHN. ML:2.1 0.000127 0.82 AML other m 2021-08-23T10:38:23.37
IV.INTR.HHN. ML:2.2 0.000142 0.46 AML other m 2021-08-23T10:38:24.40
IV.INTR.HHE. ML:2.0 0.00007775 0.36 AML other m 2021-08-23T10:38:24.77
IV.MSAG.HHE. ML:2.0 0.0000711 0.64 AML other m 2021-08-23T10:38:25.84
OT.OT12.EHE. ML:2.2 0.00010600000000000002 0.3 AML other m 2021-08-23T10:38:27.90
OT.OT12.EHN. ML:2.5 0.0002165 0.18 AML other m 2021-08-23T10:38:27.79
IV.MSAG.HHN. ML:2.3 0.0001475 0.2 AML other m 2021-08-23T10:38:28.62
IV.MNTT.EHN. ML:2.9 0.000484 0.5 AML other m 2021-08-23T10:38:36.70
IV.NRCA.HHN. ML:2.0 0.000047350000000000006 0.64 AML other m 2021-08-23T10:38:37.76
IV.NRCA.HHE. ML:1.9 0.0000421 0.14 AML other m 2021-08-23T10:38:39.35
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