Earthquake with magnitude of ML 0.8 on date 28-03-2022 and time 03:08:44 (UTC) in region 4 km SW Accumoli (RI)

A magnitude ML 0.8 earthquake occured in region: 4 km SW Accumoli (RI), on

  • 28-03-2022 03:08:44 (UTC)
  • 28-03-2022 05:08:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6730, 13.2180 at 14 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Accumoli RI 4 667 667
Amatrice RI 8 2657 3324
Cittareale RI 8 482 3806
Arquata del Tronto AP 13 1178 4984
Montereale AQ 17 2581 7565
Norcia PG 17 4957 12522
Cascia PG 17 3217 15739
Campotosto AQ 18 542 16281
Capitignano AQ 18 665 16946
Borbona RI 19 617 17563
Acquasanta Terme AP 19 2916 20479
Posta RI 19 694 21173

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of L'Aquila (69753 inhabitants)
40 Km W of Teramo (54892 inhabitants)
48 Km E of Terni (111501 inhabitants)
52 Km SE of Foligno (57155 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
85 Km W of Pescara (121014 inhabitants)
85 Km NE of Guidonia Montecelio (88673 inhabitants)
86 Km W of Chieti (51815 inhabitants)
86 Km NE of Tivoli (56533 inhabitants)
95 Km E of Viterbo (67173 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
Reviewed
Rev100
ML 0.8 2022-03-28
03:08:44
42.6727 13.2178 15 2022-03-28
03:29:53
Sala Sismica INGV-Roma 102484691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-03-28 03:08:44 ± 0.1
Latitude 42.6727 ± 0.0036
Longitude 13.2178 ± 0.0049
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 102484691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 418
Semi-minor axis of confidence ellipse (meter) 262
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 295
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.09623
Epicentral distance of station farthest from the epicenter (degree) 0.28778
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 102484691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-03-28 03:29:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2022-03-28T03:08:55.11 0.1 undecidable manual S 100 31.9458 100 -0.16 93
IV.MMO1.EHZ. 2022-03-28T03:08:53.90 0.1 undecidable manual S 19 26.6511 104 0.02 98
IV.LNSS.HHZ. 2022-03-28T03:08:51.20 0.1 undecidable manual S 242 16.4724 119 -0.12 97
IV.RM33.EHZ. 2022-03-28T03:08:51.69 0.1 undecidable manual S 181 18.1707 115 -0.04 98
IV.NRCA.HHZ. 2022-03-28T03:08:51.95 0.1 undecidable manual S 335 19.7691 112 -0.17 96
IV.MMO1.EHZ. 2022-03-28T03:08:50.01 1.0 undecidable manual P 19 26.6511 104 0.22 23
IV.TERO.HHZ. 2022-03-28T03:08:50.69 0.6 undecidable manual P 100 31.9458 100 0.1 48
IV.SMA1.EHZ. 2022-03-28T03:08:50.06 0.1 undecidable manual S 116 10.6782 135 -0.02 100
IV.NRCA.HHZ. 2022-03-28T03:08:48.88 0.6 undecidable manual P 335 19.7691 112 0.11 49
IV.LNSS.HHZ. 2022-03-28T03:08:48.43 0.3 positive manual P 242 16.4724 119 0.12 73
IV.RM33.EHZ. 2022-03-28T03:08:48.75 1.0 undecidable manual P 181 18.1707 115 0.2 24
IV.SMA1.EHZ. 2022-03-28T03:08:47.96 0.6 negative manual P 116 10.6782 135 0.37 47
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.0 0.0000904 0.26 AML other m 2022-03-28T03:08:50.50
IV.SMA1.EHN. ML:0.8 0.00005605 1 AML other m 2022-03-28T03:08:51.64
IV.NRCA.HHE. ML:0.9 0.0000479 0.14 AML other m 2022-03-28T03:08:52.10
IV.NRCA.HHN. ML:0.6 0.000023199999999999998 0.46 AML other m 2022-03-28T03:08:54.44
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