Earthquake with magnitude of ML 1.9 on date 27-03-2021 and time 17:03:32 (Italy) in region Adriatico Centrale (MARE)

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

  • 27-03-2021 16:03:32 (UTC)
  • 27-03-2021 17:03:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6420, 16.2800 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 2021-03-27
16:03:32
42.6425 16.2798 10 2021-07-12
16:55:06
Bollettino Sismico Italiano INGV 89248201
Reviewed
Rev100
ML 2.2 2021-03-27
16:03:33
42.6647 16.238 10 2021-03-27
16:20:55
Sala Sismica INGV-Roma 88525821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-27 16:03:32 ± 0.27
Latitude 42.6425 ± 0.0135
Longitude 16.2798 ± 0.0281
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89248201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2460
Semi-minor axis of confidence ellipse (meter) 1290
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 291
Circular confidence region, given by single value of horizontal uncertainty (meter) 2460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 327
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
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) 0.76982
Epicentral distance of station farthest from the epicenter (degree) 1.41913
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 88525821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-27 16:20:55

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 89248201
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-07 13:49:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.OT05.EHZ. 2021-03-27T16:04:08.06 0.3 undecidable manual S 207 122.4885 50 -0.18 96
OT.OT07.EHE. 2021-03-27T16:04:08.04 0.6 undecidable manual S 202 122.2887 50 -0.15 64
OT.OT06.EHZ. 2021-03-27T16:04:07.30 0.6 undecidable manual S 208 120.1908 50 -0.33 62
OT.OT04.EHE. 2021-03-27T16:04:06.45 0.3 undecidable manual S 210 117.3936 50 -0.44 92
IV.APRC.HHZ. 2021-03-27T16:04:06.38 0.6 undecidable manual S 212 115.2957 50 0.04 67
OT.OT03.EHE. 2021-03-27T16:04:06.46 0.6 undecidable manual S 207 115.4955 50 0.09 66
OT.OT12.EHZ. 2021-03-27T16:04:06.78 0.3 undecidable manual S 195 116.1948 50 0.21 97
IV.MSAG.HHZ. 2021-03-27T16:04:04.69 0.3 undecidable manual S 197 107.6145 50 0.42 94
IV.SGRT.HHN. 2021-03-27T16:04:03.46 0.6 undecidable manual S 204 107.9142 50 -0.89 52
OT.OT14.EHZ. 2021-03-27T16:03:59.41 0.3 undecidable manual S 200 88.245 50 0.32 100
IV.TREM.HNZ. 2021-03-27T16:03:59.21 0.6 undecidable manual S 228 85.4478 50 0.86 55
IV.CIGN.HHN. 2021-03-27T16:03:58.72 0.6 undecidable manual P 226 157.5201 50 0.04 60
OT.OT05.EHZ. 2021-03-27T16:03:53.11 0.3 undecidable manual P 207 122.4885 50 -0.17 96
OT.OT07.EHE. 2021-03-27T16:03:53.04 0.3 undecidable manual P 202 122.2887 50 -0.22 95
OT.OT06.EHZ. 2021-03-27T16:03:52.62 0.3 undecidable manual P 208 120.1908 50 -0.31 94
OT.OT12.EHZ. 2021-03-27T16:03:52.68 0.3 undecidable manual P 195 116.1948 50 0.36 93
OT.OT04.EHE. 2021-03-27T16:03:52.62 0.3 undecidable manual P 210 117.3936 50 0.12 98
IV.APRC.HHZ. 2021-03-27T16:03:52.39 0.3 undecidable manual P 212 115.2957 50 0.21 97
OT.OT03.EHE. 2021-03-27T16:03:52.12 0.6 undecidable manual P 207 115.4955 50 -0.08 66
IV.MSAG.HHZ. 2021-03-27T16:03:51.15 0.3 undecidable manual P 197 107.6145 50 0.16 99
IV.SGRT.HHN. 2021-03-27T16:03:50.69 0.3 undecidable manual P 204 107.9142 50 -0.34 96
OT.OT14.EHZ. 2021-03-27T16:03:48.16 0.6 undecidable manual P 200 88.245 50 0.16 69
IV.TREM.HNZ. 2021-03-27T16:03:47.54 1.0 undecidable manual P 228 85.4478 50 -0.03 36
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSAG.HHE. ML:1.5 0.000030562995000000005 1.5232 AML other m 2021-03-27T16:04:04.88
IV.MSAG.HNE. ML:1.9 0.000075716765 1.536 AML other m 2021-03-27T16:04:05.64
IV.MSAG.HHN. ML:1.6 0.000034851215 0.2816 AML other m 2021-03-27T16:04:06.02
IV.APRC.HHE. ML:2.2 0.0001413664 0.4224 AML other m 2021-03-27T16:04:07.08
OT.OT12.EHE. ML:1.8 0.000044358675 0.832 AML other m 2021-03-27T16:04:07.56
OT.OT12.EHN. ML:2.0 0.00006761260500000001 0.3584 AML other m 2021-03-27T16:04:07.60
IV.APRC.HHN. ML:2.3 0.000150381 0.2048 AML other m 2021-03-27T16:04:07.82
OT.OT05.EHN. ML:2.0 0.000076636705 1.8688 AML other m 2021-03-27T16:04:09.18
OT.OT05.EHE. ML:2.0 0.000073626025 1.216 AML other m 2021-03-27T16:04:08.61
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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