Earthquake with magnitude of ML 2.3 on date 13-04-2021 and time 20:30:45 (Italy) in region Adriatico Centrale (MARE)

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

  • 13-04-2021 18:30:45 (UTC)
  • 13-04-2021 20:30:45 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6410, 16.1910 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

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 2.3 2021-04-13
18:30:45
42.6408 16.1908 10 2021-07-12
16:55:15
Bollettino Sismico Italiano INGV 91330261
Reviewed
Rev100
ML 2.3 2021-04-13
18:30:44
42.6532 16.1832 10 2021-04-13
18:49:19
Sala Sismica INGV-Roma 89067221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-13 18:30:45 ± 0.32
Latitude 42.6408 ± 0.0126
Longitude 16.1908 ± 0.0281
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 91330261

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2540
Semi-minor axis of confidence ellipse (meter) 965
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 116
Circular confidence region, given by single value of horizontal uncertainty (meter) 2540.0
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 27
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.07739
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 89067221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-13 18:49:19

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 91330261
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-15 12:52:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SARZ.HHZ. 2021-04-13T18:33:03.58 3.0 positive manual Pg 23.02 0
IV.PE3.EHZ. 2021-04-13T18:32:50.95 3.0 undecidable manual Sg 10.97 0
IV.CRTC.HHZ. 2021-04-13T18:32:47.69 3.0 undecidable manual Sg 12 0
IV.APEC.HHZ. 2021-04-13T18:32:38.94 3.0 undecidable manual Sn -0.26 0
IV.MTGR.HHZ. 2021-04-13T18:32:34.36 3.0 positive manual Pg 11.79 0
IV.FIR.HHZ. 2021-04-13T18:32:21.86 3.0 undecidable manual Pg 8.79 0
IV.VITU.HHZ. 2021-04-13T18:31:51.62 3.0 undecidable manual S -0.07 0
IV.LRP.EHZ. 2021-04-13T18:31:43.90 3.0 undecidable manual Pg 1.01 0
OT.OT12.EHZ. 2021-04-13T18:31:18.06 0.6 undecidable manual S 192 114.2967 50 -0.18 48
OT.OT05.EHZ. 2021-04-13T18:31:18.95 0.6 undecidable manual S 204 119.1918 50 -0.58 43
IV.APRC.HHZ. 2021-04-13T18:31:17.65 0.6 undecidable manual S 209 111.4995 50 0.15 49
IV.MSAG.HHZ. 2021-04-13T18:31:16.35 0.3 undecidable manual S 193 105.6165 50 0.44 69
IV.SGRT.HHZ. 2021-04-13T18:31:15.92 0.6 undecidable manual S 201 104.9172 50 0.18 49
OT.OT14.EHE. 2021-04-13T18:31:10.38 0.6 undecidable manual S 196 85.7475 50 -0.24 50
IV.TREM.HHN. 2021-04-13T18:31:09.14 0.6 undecidable manual S 224 80.0643 50 0.04 53
OT.OT07.EHN. 2021-04-13T18:31:04.99 0.3 undecidable manual P 199 119.5914 50 -0.01 74
OT.OT05.EHZ. 2021-04-13T18:31:04.32 0.3 undecidable manual P 204 119.1918 50 -0.62 64
OT.OT06.EHN. 2021-04-13T18:31:04.94 0.3 undecidable manual P 205 116.7942 50 0.36 69
IV.APRC.HHZ. 2021-04-13T18:31:04.24 0.3 undecidable manual P 209 111.4995 50 0.47 68
OT.OT12.EHZ. 2021-04-13T18:31:03.99 0.3 undecidable manual P 192 114.2967 50 -0.21 72
OT.OT03.EHN. 2021-04-13T18:31:03.70 0.3 undecidable manual P 204 112.1988 50 -0.17 73
OT.OT04.EHZ. 2021-04-13T18:31:03.87 0.3 undecidable manual P 206 113.8971 50 -0.26 71
IV.MSAG.HHZ. 2021-04-13T18:31:02.93 0.1 undecidable manual P 193 105.6165 50 0.08 100
IV.SGRT.HHZ. 2021-04-13T18:31:02.59 0.3 undecidable manual P 201 104.9172 50 -0.16 74
OT.OT14.EHE. 2021-04-13T18:30:59.64 0.3 undecidable manual P 196 85.7475 50 -0.16 77
OT.OT13.EHE. 2021-04-13T18:30:59.91 0.3 undecidable manual P 181 84.3489 50 0.33 74
IV.TREM.HHN. 2021-04-13T18:30:59.88 1.0 undecidable manual P 224 80.0643 50 0.96 20
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSAG.HNE. ML:1.5 0.00003144279 1.296 AML other m 2021-04-13T18:31:17.17
IV.SGRT.HHE. ML:2.3 0.000188 0.24 AML other m 2021-04-13T18:31:17.52
IV.MSAG.HNN. ML:2.4 0.00020563195 0.32 AML other m 2021-04-13T18:31:18.26
IV.SGRT.HHN. ML:2.3 0.00017999999999999998 0.42 AML other m 2021-04-13T18:31:18.67
IV.APRC.HHE. ML:2.6 0.000324 1.7 AML other m 2021-04-13T18:31:19.86
OT.OT12.EHN. ML:2.1 0.00010039999999999999 0.7 AML other m 2021-04-13T18:31:19.35
IV.APRC.HHN. ML:2.6 0.000319 0.34 AML other m 2021-04-13T18:31:19.56
OT.OT05.EHE. ML:2.2 0.00010444724999999999 0.4352 AML other m 2021-04-13T18:31:20.06
OT.OT05.EHN. ML:2.2 0.00012306923 0.3072 AML other m 2021-04-13T18:31:20.42
OT.OT12.EHE. ML:2.2 0.0001365 0.74 AML other m 2021-04-13T18:31:21.50
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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