Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 12-05-2022 and time 22:59:31 (Italy) in region 4 km NE Accumoli (RI)

A magnitude ML 0.6 earthquake occured in region: 4 km NE Accumoli (RI), on

  • 12-05-2022 20:59:31 (UTC)
  • 12-05-2022 22:59:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7150, 13.2930 at 15 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.

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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
Arquata del Tronto AP 7 1178 1845
Amatrice RI 9 2657 4502
Acquasanta Terme AP 11 2916 7418
Montegallo AP 15 523 7941
Cittareale RI 15 482 8423
Valle Castellana TE 17 977 9400
Campotosto AQ 19 542 9942
Norcia PG 19 4957 14899
Rocca Santa Maria TE 20 537 15436

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km W of Teramo (54892 inhabitants)
41 Km N of L'Aquila (69753 inhabitants)
55 Km E of Foligno (57155 inhabitants)
56 Km E of Terni (111501 inhabitants)
74 Km W of Montesilvano (53738 inhabitants)
80 Km W of Pescara (121014 inhabitants)
82 Km W of Chieti (51815 inhabitants)
86 Km SE of Perugia (166134 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km NE of Tivoli (56533 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 0.6 2022-05-12
20:59:31		 42.7147 13.2928 15 2022-05-12
21:12:54		 Sala Sismica INGV-Roma 104551931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-12 20:59:31 ± 0.13
Latitude 42.7147 ± 0.0054
Longitude 13.2928 ± 0.0073
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 104551931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 718
Semi-minor axis of confidence ellipse (meter) 156
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 223
Circular confidence region, given by single value of horizontal uncertainty (meter) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
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) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.08723
Epicentral distance of station farthest from the epicenter (degree) 0.24641
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 104551931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-12 21:12:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2022-05-12T20:59:41.24 0.1 undecidable manual S 112 27.3504 105 -0.07 97
IV.NRCA.HHZ. 2022-05-12T20:59:39.04 0.1 undecidable manual S 312 19.6692 115 -0.34 91
IV.MMO1.EHZ. 2022-05-12T20:59:39.75 0.1 undecidable manual S 8 20.6682 113 0.12 96
IV.MTRA.EHZ. 2022-05-12T20:59:37.16 0.1 undecidable manual S 61 9.6792 140 -0.09 100
IV.TERO.HHZ. 2022-05-12T20:59:37.00 0.1 undecidable manual P 112 27.3504 105 -0.12 96
IV.LNSS.HHZ. 2022-05-12T20:59:36.71 0.6 undecidable manual P 239 24.0537 109 0.08 49
IV.RM33.EHZ. 2022-05-12T20:59:36.85 1.0 undecidable manual P 196 23.6541 109 0.27 23
IV.MC2.EHZ. 2022-05-12T20:59:36.76 1.0 negative manual P 339 23.4543 110 0.22 24
IV.MMO1.EHZ. 2022-05-12T20:59:36.35 1.0 undecidable manual P 8 20.6682 113 0.2 24
IV.NRCA.HHZ. 2022-05-12T20:59:35.99 1.0 negative manual P 312 19.6692 115 -0.01 24
IV.MTRA.EHZ. 2022-05-12T20:59:34.97 0.1 negative manual P 61 9.6792 140 0.19 96
IV.SMA1.EHZ. 2022-05-12T20:59:34.98 0.6 negative manual P 160 9.9789 139 0.17 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:0.5 0.000029400000000000003 0.32 AML other m 2022-05-12T20:59:37.24
IV.MTRA.EHN. ML:0.9 0.0000752 0.16 AML other m 2022-05-12T20:59:37.22
IV.SMA1.EHN. ML:0.4 0.0000256 0.14 AML other m 2022-05-12T20:59:37.32
IV.MTRA.EHE. ML:0.9 0.0000809 0.96 AML other m 2022-05-12T20:59:37.71
IV.NRCA.HHN. ML:1.1 0.00008465 0.16 AML other m 2022-05-12T20:59:39.20
IV.NRCA.HHE. ML:1.5 0.00020050000000000002 0.16 AML other m 2022-05-12T20:59:39.21
IV.MMO1.EHE. ML:0.4 0.000015945 1.08 AML other m 2022-05-12T20:59:40.59
IV.MMO1.EHN. ML:0.5 0.00001902 1.46 AML other m 2022-05-12T20:59:40.16
IV.LNSS.HHE. ML:0.6 0.000018500000000000002 0.26 AML other m 2022-05-12T20:59:40.37
IV.LNSS.HHN. ML:0.7 0.00002835 0.22 AML other m 2022-05-12T20:59:40.69
IV.RM33.EHN. ML:0.6 0.00002045 0.7 AML other m 2022-05-12T20:59:40.29
IV.RM33.EHE. ML:0.6 0.0000263 0.6 AML other m 2022-05-12T20:59:40.88
IV.TERO.HHN. ML:0.5 0.000013000000000000001 1.44 AML other m 2022-05-12T20:59:42.23
IV.TERO.HHE. ML:0.3 0.0000121 0.32 AML other m 2022-05-12T20:59:42.55
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