Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 27-03-2021 and time 18:56:11 (UTC) in region Adriatico Centrale (MARE)

A magnitude ML 2.4 earthquake occured in region: Adriatico Centrale (MARE), on

  • 27-03-2021 18:56:11 (UTC)
  • 27-03-2021 19:56:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6110, 16.2300 at 11 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 2.4 2021-03-27
18:56:11		 42.6113 16.2297 11 2021-07-12
16:55:08		 Bollettino Sismico Italiano INGV 89595451
Reviewed
Rev100 		ML 2.6 2021-03-27
18:56:09		 42.7463 16.0892 10 2021-03-27
19:02:39		 Sala Sismica INGV-Roma 88529781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-27 18:56:11 ± 0.34
Latitude 42.6113 ± 0.0153
Longitude 16.2297 ± 0.0305
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89595451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2480
Semi-minor axis of confidence ellipse (meter) 1630
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 279
Circular confidence region, given by single value of horizontal uncertainty (meter) 2480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 281
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.75548
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 89595451
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-09 11:19:02

ML:2.6

Field Value
Value 2.6
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 88529781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-27 19:02:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.OT06.EHE. 2021-03-27T18:56:45.29 0.6 undecidable manual S 207 115.1958 50 0.08 66
OT.OT07.EHE. 2021-03-27T18:56:45.51 0.6 undecidable manual S 201 117.5934 50 -0.33 62
OT.OT05.EHE. 2021-03-27T18:56:45.12 0.6 undecidable manual S 206 117.4935 50 -0.71 55
IV.APRC.HHZ. 2021-03-27T18:56:44.32 0.6 undecidable manual S 211 110.2119 50 0.43 62
IV.CAFE.HHN. 2021-03-27T18:56:44.38 0.6 undecidable manual P 205 193.8615 38 1.64 26
OT.OT04.EHE. 2021-03-27T18:56:44.37 0.3 undecidable manual S 209 112.3986 50 -0.09 100
OT.OT03.EHZ. 2021-03-27T18:56:43.89 0.6 undecidable manual S 206 110.5005 50 -0.08 67
IV.VULT.HHN. 2021-03-27T18:56:43.21 3.0 undecidable manual P 0.54 0
IV.AMUR.HHN. 2021-03-27T18:56:43.33 0.6 undecidable manual P 171 191.5638 38 0.87 39
OT.OT12.EHN. 2021-03-27T18:56:43.77 0.6 undecidable manual S 194 111.7992 50 -0.54 60
IV.SACR.HNN. 2021-03-27T18:56:42.10 0.3 undecidable manual P 224 184.1712 38 0.57 69
IV.MSAG.HHZ. 2021-03-27T18:56:42.41 0.3 undecidable manual S 195 103.119 50 0.41 95
IV.LPEL.HHE. 2021-03-27T18:56:42.59 0.6 undecidable manual P 250 179.0874 38 1.69 27
IV.SGRT.HHZ. 2021-03-27T18:56:42.13 0.3 undecidable manual S 203 103.119 50 0.16 100
IV.MIDA.HNZ. 2021-03-27T18:56:42.52 0.6 undecidable manual P 237 194.8605 38 -0.34 46
IV.BSSO.HHE. 2021-03-27T18:56:41.44 0.6 undecidable manual P 229 179.1873 38 0.53 48
IV.MOCO.HNE. 2021-03-27T18:56:39.19 0.3 undecidable manual P 213 163.614 50 0.57 77
IV.MRVN.HHZ. 2021-03-27T18:56:38.66 0.3 undecidable manual P 181 171.9945 50 -1.26 54
OT.OT14.EHZ. 2021-03-27T18:56:37.19 0.3 undecidable manual S 199 83.5497 50 0.42 98
OT.OT13.EHZ. 2021-03-27T18:56:37.03 0.6 undecidable manual S 183 81.1521 50 0.91 54
IV.CIGN.HHN. 2021-03-27T18:56:37.25 0.6 undecidable manual P 226 152.1366 50 0.4 57
IV.TREM.HNZ. 2021-03-27T18:56:35.80 0.6 undecidable manual S 228 80.0643 50 -0.04 71
IV.MELA.HNZ. 2021-03-27T18:56:34.44 0.3 undecidable manual P 222 135.2646 50 0.18 93
OT.OT07.EHE. 2021-03-27T18:56:31.07 0.3 undecidable manual P 201 117.5934 50 -0.45 91
OT.OT05.EHE. 2021-03-27T18:56:30.75 0.3 undecidable manual P 206 117.4935 50 -0.77 81
OT.OT12.EHN. 2021-03-27T18:56:30.44 0.6 undecidable manual P 194 111.7992 50 -0.2 65
OT.OT06.EHE. 2021-03-27T18:56:30.45 0.6 undecidable manual P 207 115.1958 50 -0.71 56
OT.OT03.EHZ. 2021-03-27T18:56:30.32 0.6 undecidable manual P 206 110.5005 50 -0.12 66
IV.SGRT.HHZ. 2021-03-27T18:56:29.42 0.6 undecidable manual P 203 103.119 50 0.13 67
IV.APRC.HHZ. 2021-03-27T18:56:29.77 0.6 undecidable manual P 211 110.2119 50 -0.62 58
IV.MSAG.HHZ. 2021-03-27T18:56:29.74 0.6 undecidable manual P 195 103.119 50 0.44 63
OT.OT04.EHE. 2021-03-27T18:56:29.93 0.6 undecidable manual P 209 112.3986 50 -0.8 54
OT.OT13.EHZ. 2021-03-27T18:56:26.14 0.6 undecidable manual P 183 81.1521 50 0.23 69
IV.TREM.HNZ. 2021-03-27T18:56:25.02 0.6 undecidable manual P 228 80.0643 50 -0.72 59
OT.OT14.EHZ. 2021-03-27T18:56:25.99 0.6 undecidable manual P 199 83.5497 50 -0.29 67
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSAG.HNE. ML:2.2 0.00015815964500000003 0.9728 AML other m 2021-03-27T18:56:43.01
IV.MSAG.HHE. ML:1.8 0.00006709999999999999 1.44 AML other m 2021-03-27T18:56:43.02
IV.SGRT.HHN. ML:2.3 0.0001699348 0.3328 AML other m 2021-03-27T18:56:42.89
IV.MSAG.HNN. ML:2.5 0.00027814315 0.4352 AML other m 2021-03-27T18:56:43.42
IV.SGRT.HHE. ML:2.4 0.00021498635 0.2816 AML other m 2021-03-27T18:56:43.34
IV.MSAG.HHN. ML:2.2 0.0001575 0.76 AML other m 2021-03-27T18:56:43.80
IV.APRC.HHE. ML:2.6 0.00033285110000000004 0.3072 AML other m 2021-03-27T18:56:44.94
IV.APRC.HNE. ML:2.6 0.0003464904 0.3712 AML other m 2021-03-27T18:56:44.98
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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