Earthquake with magnitude of ML 1.9 on date 17-10-2021 and time 22:10:14 (UTC) in region Adriatico Centrale (MARE)

A magnitude ML 1.9 earthquake occured in region: Adriatico Centrale (MARE), on

  • 17-10-2021 22:10:14 (UTC)
  • 18-10-2021 00:10:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6820, 16.1680 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 1.9 2021-10-17
22:10:14
42.6817 16.1677 10 2022-03-30
13:04:15
Bollettino Sismico Italiano INGV 97274001
Reviewed
Rev100
ML 2.0 2021-10-17
22:10:14
42.6557 16.3452 31 2021-10-17
22:40:26
Sala Sismica INGV-Roma 96702941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-17 22:10:14 ± 0.27
Latitude 42.6817 ± 0.0108
Longitude 16.1677 ± 0.0269
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 97274001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2340
Semi-minor axis of confidence ellipse (meter) 758
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 114
Circular confidence region, given by single value of horizontal uncertainty (meter) 2340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 318
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.24286
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 97274001
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-21 17:18:36

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 96702941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-17 22:40:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ZEN8.EHZ. 2021-10-17T22:12:00.18 3.0 undecidable manual Pg 16.559999 0
SI.ABSI.HHZ. 2021-10-17T22:11:58.13 3.0 positive manual Pg 7.24 0
ST.ZIAN.EHZ. 2021-10-17T22:11:54.86 3.0 undecidable manual Pg 10.3 0
IV.TOLF.HHZ. 2021-10-17T22:11:47.34 3.0 undecidable manual Sn -0.49 0
IV.CRTC.HHZ. 2021-10-17T22:11:47.53 3.0 undecidable manual Sg 1.44 0
IV.MBAL.EHZ. 2021-10-17T22:11:37.43 3.0 undecidable manual Pn -5.84 0
MN.TRI.HHZ. 2021-10-17T22:11:28.93 3.0 positive manual Pg 2.08 0
IV.MTTG.HHZ. 2021-10-17T22:11:25.16 3.0 undecidable manual Pn -0.13 0
IV.PIPA.HHZ. 2021-10-17T22:11:15.80 3.0 undecidable manual Pg 9.91 0
IV.PAOL.HHZ. 2021-10-17T22:11:14.55 3.0 undecidable manual Sg 4.85 0
OT.OT05.EHZ. 2021-10-17T22:10:49.10 0.6 undecidable manual S 202 122.5884 50 -0.56 56
OT.OT06.EHN. 2021-10-17T22:10:49.20 0.6 undecidable manual S 203 120.0909 50 0.19 61
OT.OT07.EHN. 2021-10-17T22:10:49.50 0.6 undecidable manual S 198 123.2877 50 -0.35 59
OT.OT12.EHZ. 2021-10-17T22:10:48.70 0.6 undecidable manual S 190 118.3926 50 0.15 62
OT.OT04.EHZ. 2021-10-17T22:10:48.58 0.6 undecidable manual S 205 117.0939 50 0.37 60
OT.OT03.EHN. 2021-10-17T22:10:47.40 0.6 undecidable manual S 202 115.6953 50 -0.42 59
IV.APRC.HHN. 2021-10-17T22:10:47.80 0.3 undecidable manual S 207 114.6963 50 0.24 92
IV.MSAG.HHE. 2021-10-17T22:10:46.28 0.6 undecidable manual S 191 109.6125 50 0.07 64
IV.SGRT.HHZ. 2021-10-17T22:10:46.00 0.6 undecidable manual S 199 108.6135 50 0.07 65
OT.OT14.EHZ. 2021-10-17T22:10:41.20 0.6 undecidable manual S 194 89.6436 50 0.32 64
IV.TREM.HNN. 2021-10-17T22:10:38.68 0.6 undecidable manual S 221 82.1511 50 -0.19 66
IV.MELA.HNE. 2021-10-17T22:10:37.52 0.6 undecidable manual P 219 137.9619 50 0.46 56
OT.OT12.EHZ. 2021-10-17T22:10:34.00 0.3 undecidable manual P 190 118.3926 50 -0.05 95
OT.OT07.EHN. 2021-10-17T22:10:34.34 0.3 undecidable manual P 198 123.2877 50 -0.46 86
OT.OT05.EHZ. 2021-10-17T22:10:34.30 0.3 undecidable manual P 202 122.5884 50 -0.4 88
OT.OT06.EHN. 2021-10-17T22:10:33.93 0.3 undecidable manual P 203 120.0909 50 -0.39 88
OT.OT04.EHZ. 2021-10-17T22:10:33.69 0.3 undecidable manual P 205 117.0939 50 -0.17 93
IV.APRC.HHN. 2021-10-17T22:10:33.99 0.3 undecidable manual P 207 114.6963 50 0.52 87
OT.OT03.EHN. 2021-10-17T22:10:33.59 0.3 undecidable manual P 202 115.6953 50 -0.04 96
IV.MSAG.HHE. 2021-10-17T22:10:32.84 0.3 undecidable manual P 191 109.6125 50 0.14 95
IV.SGRT.HHZ. 2021-10-17T22:10:32.61 0.3 undecidable manual P 199 108.6135 50 0.07 97
OT.OT13.EHZ. 2021-10-17T22:10:29.95 0.6 undecidable manual P 179 88.8444 50 0.45 62
IV.TREM.HNN. 2021-10-17T22:10:29.28 1.0 undecidable manual P 221 82.1511 50 0.82 27
OT.OT14.EHZ. 2021-10-17T22:10:29.54 0.3 undecidable manual P 194 89.6436 50 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OT.OT13.EHN. ML:2.2 0.00019361175 0.2944 AML other m 2021-10-17T22:10:44.39
OT.OT13.EHE. ML:2.0 0.000122565085 0.2176 AML other m 2021-10-17T22:10:44.55
IV.SGRT.HHE. ML:1.9 0.000071053375 1.6032 AML other m 2021-10-17T22:10:48.19
OT.OT12.EHN. ML:1.9 0.000055835944999999995 0.4224 AML other m 2021-10-17T22:10:50.71
OT.OT12.EHE. ML:1.7 0.000040664790000000003 0.4224 AML other m 2021-10-17T22:10:50.76
IV.SGRT.HHN. ML:1.9 0.00006553966999999999 0.5888 AML other m 2021-10-17T22:10:51.06
OT.OT05.EHN. ML:1.8 0.000050636405 0.5632 AML other m 2021-10-17T22:10:54.00
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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