Earthquake with magnitude of ML 0.5 on date 21-05-2022 and time 20:19:06 (UTC) in region 6 km W Cittareale (RI)

A magnitude ML 0.5 earthquake occured in region: 6 km W Cittareale (RI), on

  • 21-05-2022 20:19:06 (UTC)
  • 21-05-2022 22:19:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5960, 13.0980 at 13 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
Cittareale RI 6 482 482
Posta RI 8 694 1176
Borbona RI 10 617 1793
Leonessa RI 12 2435 4228
Monteleone di Spoleto PG 13 599 4827
Montereale AQ 15 2581 7408
Cascia PG 15 3217 10625
Amatrice RI 16 2657 13282
Micigliano RI 16 127 13409
Accumoli RI 17 667 14076
Cagnano Amiterno AQ 18 1369 15445
Poggiodomo PG 19 117 15562
Capitignano AQ 19 665 16227
Antrodoco RI 20 2588 18815

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of L'Aquila (69753 inhabitants)
37 Km E of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
73 Km NE of Guidonia Montecelio (88673 inhabitants)
74 Km NE of Tivoli (56533 inhabitants)
81 Km SE of Perugia (166134 inhabitants)
84 Km E of Viterbo (67173 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
92 Km W of Chieti (51815 inhabitants)
93 Km W of Pescara (121014 inhabitants)
93 Km NE of Roma (2864731 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 0.5 2022-05-21
20:19:06
42.5957 13.0977 13 2022-05-21
20:30:07
Sala Sismica INGV-Roma 104972821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-21 20:19:06 ± 0.17
Latitude 42.5957 ± 0.0054
Longitude 13.0977 ± 0.0098
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 104972821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 655
Semi-minor axis of confidence ellipse (meter) 534
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 241
Circular confidence region, given by single value of horizontal uncertainty (meter) 660.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.23832
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 104972821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-21 20:30:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SAMA.EHZ. 2022-05-21T20:19:22.94 3.0 undecidable manual P 0
IV.NRCA.HHZ. 2022-05-21T20:19:16.05 0.3 undecidable manual S 3 26.4513 97 -0.19 70
IV.SMA1.EHZ. 2022-05-21T20:19:14.51 0.3 undecidable manual S 79 19.7691 102 0.02 74
IV.NRCA.HHZ. 2022-05-21T20:19:12.22 0.1 undecidable manual P 3 26.4513 97 0.01 97
IV.RM33.EHZ. 2022-05-21T20:19:12.68 0.1 undecidable manual S 135 13.5753 117 -0.24 95
IV.SMA1.EHZ. 2022-05-21T20:19:11.45 0.1 undecidable manual P 79 19.7691 102 0.25 96
IV.LNSS.HHZ. 2022-05-21T20:19:11.09 0.3 undecidable manual S 280 4.7952 154 -0.17 74
IV.RM33.EHZ. 2022-05-21T20:19:10.36 0.1 undecidable manual P 135 13.5753 117 0.07 100
IV.LNSS.HHZ. 2022-05-21T20:19:09.47 0.1 undecidable manual P 280 4.7952 154 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:0.8 0.00009005 0.36 AML other m 2022-05-21T20:19:11.38
IV.LNSS.HHN. ML:0.7 0.0000722 0.12 AML other m 2022-05-21T20:19:11.86
IV.SMA1.EHN. ML:0.3 0.0000161 0.88 AML other m 2022-05-21T20:19:14.89
IV.SMA1.EHE. ML:0.5 0.000019299999999999998 0.26 AML other m 2022-05-21T20:19:15.20
IV.NRCA.HHE. ML:0.4 0.00001685 0.2 AML other m 2022-05-21T20:19:16.56
IV.NRCA.HHN. ML:0.4 0.000013549999999999999 0.1 AML other m 2022-05-21T20:19:16.87
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