Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 05-05-2022 and time 01:08:39 (Italy) in region 1 km SW Accumoli (RI)

A magnitude ML 0.7 earthquake occured in region: 1 km SW Accumoli (RI), on

  • 04-05-2022 23:08:39 (UTC)
  • 05-05-2022 01:08:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6890, 13.2430 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Accumoli RI 1 667 667
Amatrice RI 8 2657 3324
Cittareale RI 10 482 3806
Arquata del Tronto AP 10 1178 4984
Acquasanta Terme AP 16 2916 7900
Norcia PG 17 4957 12857
Campotosto AQ 18 542 13399
Montereale AQ 18 2581 15980
Montegallo AP 19 523 16503
Cascia PG 19 3217 19720
Capitignano AQ 19 665 20385

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km W of Teramo (54892 inhabitants)
40 Km NW of L'Aquila (69753 inhabitants)
51 Km E of Terni (111501 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
77 Km W of Montesilvano (53738 inhabitants)
83 Km W of Pescara (121014 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
85 Km W of Chieti (51815 inhabitants)
87 Km NE of Guidonia Montecelio (88673 inhabitants)
88 Km NE of Tivoli (56533 inhabitants)
98 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
Bulletin
Rev1000 		ML 0.7 2022-05-04
23:08:39		 42.6888 13.2432 11 2023-01-31
19:03:10		 Bollettino Sismico Italiano INGV 104562301
Reviewed
Rev100 		ML 0.6 2022-05-04
23:08:39		 42.6933 13.2372 10 2022-05-04
23:38:04		 Sala Sismica INGV-Roma 104193551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-04 23:08:39 ± 0.04
Latitude 42.6888 ± 0.0027
Longitude 13.2432 ± 0.0037
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 104562301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 279
Semi-minor axis of confidence ellipse (meter) 88
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 325
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 56
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.08903
Epicentral distance of station farthest from the epicenter (degree) 0.27339
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 104562301
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-09-01 07:45:29

ML:0.6

Field Value
Value 0.6
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 104193551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-04 23:38:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2022-05-04T23:08:49.44 0.3 undecidable manual S 104 30.3474 91 -0.42 67
IV.GAVE.HNZ. 2022-05-04T23:08:49.36 0.6 undecidable manual S 271 28.4493 91 0 49
7F.SIB1.EHZ. 2022-05-04T23:08:48.05 0.6 undecidable manual S 5 22.9548 91 0.16 48
IV.MMO1.EHZ. 2022-05-04T23:08:48.28 0.6 undecidable manual S 16 24.3534 91 0.03 49
IV.RM33.EHZ. 2022-05-04T23:08:47.04 0.3 undecidable manual S 187 20.0688 91 -0.08 73
7F.SIB3.EHZ. 2022-05-04T23:08:47.14 0.6 undecidable manual S 6 20.7681 91 -0.17 49
IV.NRCA.HHZ. 2022-05-04T23:08:46.67 0.1 undecidable manual S 327 19.1697 92 -0.21 96
IV.LNSS.HHZ. 2022-05-04T23:08:46.83 0.3 undecidable manual S 240 19.0698 92 -0.03 74
IV.MTRA.HNZ. 2022-05-04T23:08:45.47 0.6 undecidable manual S 59 14.5743 97 -0.19 49
IV.TERO.HHZ. 2022-05-04T23:08:45.56 0.3 undecidable manual P 104 30.3474 91 0.17 71
IV.GAVE.HNZ. 2022-05-04T23:08:45.08 0.1 undecidable manual P 271 28.4493 91 -0.03 98
7F.SIB1.EHZ. 2022-05-04T23:08:44.34 0.3 undecidable manual P 5 22.9548 91 0.08 73
IV.SMA1.EHZ. 2022-05-04T23:08:44.47 0.6 undecidable manual S 131 9.879 121 -0.02 50
IV.MMO1.EHZ. 2022-05-04T23:08:44.50 0.1 undecidable manual P 16 24.3534 91 0.03 98
IV.NRCA.HHZ. 2022-05-04T23:08:43.71 0.1 undecidable manual P 327 19.1697 92 0.03 99
IV.LNSS.HHZ. 2022-05-04T23:08:43.68 0.1 undecidable manual P 240 19.0698 92 0.01 100
7F.SIB3.EHZ. 2022-05-04T23:08:43.95 0.1 undecidable manual P 6 20.7681 91 0.03 99
IV.RM33.EHZ. 2022-05-04T23:08:43.91 0.1 undecidable manual P 187 20.0688 91 0.09 99
IV.MTRA.HNZ. 2022-05-04T23:08:43.05 0.3 undecidable manual P 59 14.5743 97 0.07 74
IV.SMA1.EHZ. 2022-05-04T23:08:42.54 0.1 undecidable manual P 131 9.879 121 0.24 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:0.6 0.00004635 1.1 AML other m 2022-05-04T23:08:44.34
IV.SMA1.EHN. ML:0.5 0.00004025 0.42 AML other m 2022-05-04T23:08:45.11
IV.NRCA.HHE. ML:1.0 0.00007865 0.16 AML other m 2022-05-04T23:08:46.83
IV.NRCA.HHN. ML:1.0 0.000081 0.16 AML other m 2022-05-04T23:08:46.82
IV.RM33.EHN. ML:0.6 0.0000268 0.2 AML other m 2022-05-04T23:08:47.25
IV.LNSS.HHE. ML:0.5 0.000026099999999999997 0.36 AML other m 2022-05-04T23:08:47.28
IV.LNSS.HHN. ML:0.5 0.00002275 1.18 AML other m 2022-05-04T23:08:47.31
IV.RM33.EHE. ML:0.6 0.000028499999999999998 0.34 AML other m 2022-05-04T23:08:47.66
IV.TERO.HHN. ML:0.7 0.000024449999999999998 0.44 AML other m 2022-05-04T23:08:50.19
IV.TERO.HHE. ML:0.5 0.0000125 0.64 AML other m 2022-05-04T23:08:51.22
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