Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 30-07-2021 and time 14:23:08 (Italy) in region Adriatico Centrale (MARE)

A magnitude ML 2.0 earthquake occured in region: Adriatico Centrale (MARE), on

  • 30-07-2021 12:23:08 (UTC)
  • 30-07-2021 14:23:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6550, 16.2240 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 2.0 2021-07-30
12:23:08		 42.6552 16.2238 10 2021-12-29
11:12:50		 Bollettino Sismico Italiano INGV 97328391
Reviewed
Rev100 		ML 2.0 2021-07-30
12:23:08		 42.6613 16.2877 29 2021-07-30
12:49:14		 Sala Sismica INGV-Roma 93403561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-30 12:23:08 ± 0.37
Latitude 42.6552 ± 0.0180
Longitude 16.2238 ± 0.0342
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97328391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2830
Semi-minor axis of confidence ellipse (meter) 1860
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) 2830.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 329
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.09897
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 93403561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-30 12:49:14

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 97328391
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-05 17:05:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SOLUN.HHZ. 2021-07-30T12:24:29.20 3.0 undecidable manual Sn 3.63 0
IV.ZEN8.EHZ. 2021-07-30T12:24:27.88 3.0 undecidable manual Sn 5.2 0
IV.GRIS.EHZ. 2021-07-30T12:24:11.96 3.0 undecidable manual Sg 13.86 0
IV.SBPO.HNZ. 2021-07-30T12:24:06.49 3.0 undecidable manual Sn -2.49 0
IV.EPZF.HHZ. 2021-07-30T12:23:54.18 3.0 undecidable manual Pg 12.31 0
ST.CARE.EHZ. 2021-07-30T12:23:54.09 3.0 undecidable manual Pg 9.36 0
IT.FIE.HGZ. 2021-07-30T12:23:51.56 3.0 undecidable manual Sg 9.78 0
IV.SICLA.EHZ. 2021-07-30T12:23:49.40 3.0 undecidable manual Pg 10.56 0
IV.ZEN8.EHZ. 2021-07-30T12:23:46.51 3.0 undecidable manual Pg 11.32 0
IV.MTGR.HHZ. 2021-07-30T12:23:45.60 3.0 positive manual Pn 5.38 0
AC.PUK.HHZ. 2021-07-30T12:23:45.27 3.0 undecidable manual Pn 0.92 0
CR.ZAG.BHZ. 2021-07-30T12:23:44.34 3.0 undecidable manual Pg 9.36 0
OT.OT05.EHZ. 2021-07-30T12:23:43.30 0.6 undecidable manual S 205 121.6893 50 -0.46 59
IV.SGRT.HHZ. 2021-07-30T12:23:40.17 0.3 undecidable manual S 202 107.4147 50 0.23 96
IV.MSAG.HHZ. 2021-07-30T12:23:39.73 0.6 undecidable manual S 194 107.7144 50 -0.31 63
IV.MSSA.HHZ. 2021-07-30T12:23:38.34 3.0 undecidable manual Pg 7.9 0
OT.OT14.EHZ. 2021-07-30T12:23:34.96 0.6 undecidable manual S 197 88.0452 50 0.18 68
IV.TREM.HNE. 2021-07-30T12:23:33.61 0.6 undecidable manual S 225 83.0502 50 0.16 68
IV.CPGN.EHZ. 2021-07-30T12:23:29.06 3.0 undecidable manual Sn -0.9 0
IV.OPPE.HHZ. 2021-07-30T12:23:29.40 3.0 undecidable manual Pn 0.3 0
OT.OT04.EHE. 2021-07-30T12:23:28.18 1.0 undecidable manual P 207 116.4945 50 0.1 32
OT.OT06.EHE. 2021-07-30T12:23:28.57 0.6 undecidable manual P 206 119.3916 50 0.04 65
OT.OT07.EHE. 2021-07-30T12:23:28.05 1.0 undecidable manual P 200 121.989 50 -0.88 25
IV.APRC.HHE. 2021-07-30T12:23:28.37 0.3 undecidable manual P 210 114.1968 50 0.64 85
OT.OT05.EHZ. 2021-07-30T12:23:28.68 0.3 undecidable manual P 205 121.6893 50 -0.21 94
OT.OT03.EHE. 2021-07-30T12:23:27.90 1.0 undecidable manual P 204 114.6963 50 0.08 33
IV.MSAG.HHZ. 2021-07-30T12:23:26.56 0.3 undecidable manual P 194 107.7144 50 -0.18 97
IV.SGRT.HHZ. 2021-07-30T12:23:26.63 0.3 undecidable manual P 202 107.4147 50 -0.06 100
OT.OT14.EHZ. 2021-07-30T12:23:24.13 0.3 undecidable manual P 197 88.0452 50 0.42 96
IV.TREM.HNE. 2021-07-30T12:23:22.56 0.3 undecidable manual P 225 83.0502 50 -0.38 98
IV.PZUN.HHZ. 2021-07-30T12:23:09.65 3.0 positive manual Pn -1.79 0
IV.LAV9.HHZ. 2021-07-30T12:23:05.02 3.0 undecidable manual S -0.09 0
IV.CESX.HHZ. 2021-07-30T12:23:03.73 3.0 undecidable manual S -0.87 0
IV.VBKN.HHZ. 2021-07-30T12:23:03.65 3.0 positive manual P 2.63 0
IV.COR1.EHZ. 2021-07-30T12:23:03.81 3.0 undecidable manual Pn 3.22 0
IV.MF5.EHZ. 2021-07-30T12:22:59.05 3.0 undecidable manual S -2.89 0
IV.ARVD.HHZ. 2021-07-30T12:22:58.91 3.0 undecidable manual P -0.15 0
IV.VITU.HHZ. 2021-07-30T12:22:58.76 3.0 undecidable manual P 0.94 0
IV.PTRJ.HNZ. 2021-07-30T12:22:55.03 3.0 undecidable manual P -0.18 0
IV.GAVE.EHZ. 2021-07-30T12:22:50.72 3.0 undecidable manual P 2.03 0
IV.RMP.HHZ. 2021-07-30T12:22:49.09 3.0 positive manual P -1.03 0
IV.RNI2.HHZ. 2021-07-30T12:22:47.32 3.0 positive manual P -0.14 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SGRT.HHN. ML:2.1 0.000121 0.42 AML other m 2021-07-30T12:23:41.39
IV.SGRT.HHE. ML:2.1 0.000122 0.26 AML other m 2021-07-30T12:23:41.84
IV.MSAG.HHE. ML:1.5 0.000028167509999999998 0.2624 AML other m 2021-07-30T12:23:43.10
OT.OT05.EHE. ML:2.0 0.0000770624 0.4416 AML other m 2021-07-30T12:23:43.00
OT.OT05.EHN. ML:2.2 0.0001175 1.54 AML other m 2021-07-30T12:23:44.14
IV.MSAG.HHN. ML:1.9 0.00006608148 1.5776 AML other m 2021-07-30T12:23:46.83
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