Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 04-07-2022 and time 03:27:24 (UTC) in region 9 km W Accumoli (RI)

A magnitude ML 1.2 earthquake occured in region: 9 km W Accumoli (RI), on

  • 04-07-2022 03:27:24 (UTC)
  • 04-07-2022 05:27:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7120, 13.1350 at 12 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 10 667 667
Norcia PG 10 4957 5624
Cascia PG 10 3217 8841
Cittareale RI 11 482 9323
Arquata del Tronto AP 15 1178 10501
Amatrice RI 16 2657 13158
Poggiodomo PG 16 117 13275
Monteleone di Spoleto PG 16 599 13874

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km E of Terni (111501 inhabitants)
44 Km SE of Foligno (57155 inhabitants)
46 Km NW of L'Aquila (69753 inhabitants)
47 Km W of Teramo (54892 inhabitants)
75 Km SE of Perugia (166134 inhabitants)
86 Km NE of Guidonia Montecelio (88673 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
88 Km NE of Tivoli (56533 inhabitants)
90 Km E of Viterbo (67173 inhabitants)
93 Km W of Pescara (121014 inhabitants)
94 Km W of Chieti (51815 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 1.2 2022-07-04
03:27:24		 42.712 13.1348 12 2023-01-31
19:03:57		 Bollettino Sismico Italiano INGV 112645591
Reviewed
Rev100 		ML 1.2 2022-07-04
03:27:24		 42.7092 13.1563 11 2022-07-04
03:32:40		 Sala Sismica INGV-Roma 106776801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-07-04 03:27:24 ± 0.04
Latitude 42.7120 ± 0.0018
Longitude 13.1348 ± 0.0024
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 112645591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 260
Semi-minor axis of confidence ellipse (meter) 49
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 125
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 49
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 33
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48024
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 112645591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-12-09 01:35:40

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 106776801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-07-04 03:32:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MGAB.HHZ. 2022-07-04T03:27:39.36 3.0 undecidable manual P -0.06 0
IV.VCEL.EHZ. 2022-07-04T03:27:36.38 3.0 positive manual P -0.02 0
IV.EL6.EHZ. 2022-07-04T03:27:36.53 3.0 undecidable manual P 0.09 0
IV.ARRO.EHZ. 2022-07-04T03:27:35.82 0.6 undecidable manual S 244 33.5442 92 0.33 45
IV.CAMP.HHZ. 2022-07-04T03:27:34.40 0.6 undecidable manual S 131 29.748 92 -0.07 48
IV.MMO1.EHZ. 2022-07-04T03:27:33.46 0.6 undecidable manual S 37 25.9518 93 -0.02 49
IV.ASSB.HHZ. 2022-07-04T03:27:33.63 0.6 undecidable manual P 314 53.3022 91 -0.08 46
7F.SIB2.EHE. 2022-07-04T03:27:33.03 0.6 undecidable manual S 35 24.1536 93 0.04 49
7F.SIB3.EHE. 2022-07-04T03:27:32.14 0.6 undecidable manual S 31 21.1677 94 -0.05 49
IV.RM33.EHZ. 2022-07-04T03:27:32.72 0.6 undecidable manual S 164 23.4543 93 -0.08 48
IV.CESX.HHZ. 2022-07-04T03:27:32.86 0.3 undecidable manual P 256 46.1205 91 0.25 68
IV.MTRA.EHZ. 2022-07-04T03:27:32.29 0.6 undecidable manual S 77 21.867 94 -0.09 49
IV.MF5.EHZ. 2022-07-04T03:27:32.10 0.1 undecidable manual P 41 40.4262 91 0.37 88
IV.MC2.EHZ. 2022-07-04T03:27:32.88 0.6 undecidable manual S 11 22.5552 93 0.32 46
IV.MOMA.HHZ. 2022-07-04T03:27:32.68 0.3 undecidable manual P 283 47.1195 91 -0.08 69
IV.CSP1.EHZ. 2022-07-04T03:27:32.00 0.3 undecidable manual P 8 42.5241 91 -0.05 71
IV.MML1.EHZ. 2022-07-04T03:27:32.82 0.6 undecidable manual P 343 46.4202 91 0.16 46
IV.GIGS.HHZ. 2022-07-04T03:27:32.23 0.3 undecidable manual P 129 45.9207 91 -0.34 66
IV.TERO.HHZ. 2022-07-04T03:27:31.37 0.3 undecidable manual P 104 39.5271 91 -0.22 69
IV.SMA1.EHZ. 2022-07-04T03:27:31.75 0.6 undecidable manual S 119 18.6702 96 0.22 47
IV.GAVE.EHZ. 2022-07-04T03:27:31.56 0.6 undecidable manual S 264 19.7691 95 -0.25 47
IV.NRCA.HHZ. 2022-07-04T03:27:30.02 0.6 undecidable manual S 353 13.5753 108 -0.17 48
IV.ARRO.EHZ. 2022-07-04T03:27:30.54 0.1 undecidable manual P 244 33.5442 92 -0.12 94
IV.LNSS.HHZ. 2022-07-04T03:27:30.43 0.6 undecidable manual S 213 14.3745 105 0.04 50
IV.FDMO.HHZ. 2022-07-04T03:27:30.91 0.3 undecidable manual P 354 36.2415 91 -0.17 70
7F.SIB2.EHE. 2022-07-04T03:27:29.10 0.1 undecidable manual P 35 24.1536 93 -0.12 96
IV.RM33.EHZ. 2022-07-04T03:27:29.07 0.1 undecidable manual P 164 23.4543 93 -0.04 98
IV.MMO1.EHZ. 2022-07-04T03:27:29.47 0.1 undecidable manual P 37 25.9518 93 -0.03 97
IV.MC2.EHZ. 2022-07-04T03:27:29.02 0.3 undecidable manual P 11 22.5552 93 0.05 73
IV.CAMP.HHZ. 2022-07-04T03:27:29.98 0.3 undecidable manual P 131 29.748 92 -0.1 72
IV.GAVE.EHZ. 2022-07-04T03:27:28.53 0.1 undecidable manual P 264 19.7691 95 -0.01 98
7F.SIB3.EHE. 2022-07-04T03:27:28.66 0.3 undecidable manual P 31 21.1677 94 -0.1 73
IV.MTRA.EHZ. 2022-07-04T03:27:28.83 0.1 undecidable manual P 77 21.867 94 -0.04 98
IV.SMA1.EHZ. 2022-07-04T03:27:28.59 0.1 undecidable manual P 119 18.6702 96 0.21 95
IV.NRCA.HHZ. 2022-07-04T03:27:27.63 0.1 negative manual P 353 13.5753 108 0.02 100
IV.LNSS.HHZ. 2022-07-04T03:27:27.85 0.1 undecidable manual P 213 14.3745 105 0.13 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.8 0.0005489999999999999 0.28 AML other m 2022-07-04T03:27:30.76
IV.LNSS.HHN. ML:1.7 0.0004455 0.22 AML other m 2022-07-04T03:27:30.78
IV.NRCA.HHN. ML:1.4 0.00025 0.9 AML other m 2022-07-04T03:27:31.52
IV.NRCA.HHE. ML:1.4 0.000265 0.08 AML other m 2022-07-04T03:27:31.16
IV.GAVE.EHE. ML:1.4 0.000194 0.2 AML other m 2022-07-04T03:27:31.78
IV.SMA1.EHE. ML:1.6 0.000277 0.2 AML other m 2022-07-04T03:27:32.30
IV.GAVE.EHN. ML:1.3 0.00015099999999999998 0.58 AML other m 2022-07-04T03:27:32.35
IV.MTRA.EHE. ML:1.4 0.000161 1 AML other m 2022-07-04T03:27:32.14
IV.MTRA.EHN. ML:1.2 0.00011 1.2 AML other m 2022-07-04T03:27:33.21
IV.RM33.EHN. ML:1.1 0.0000767 0.14 AML other m 2022-07-04T03:27:33.30
IV.SMA1.EHN. ML:1.3 0.0001675 1.04 AML other m 2022-07-04T03:27:33.77
IV.RM33.EHE. ML:1.0 0.000066 1.12 AML other m 2022-07-04T03:27:34.95
IV.MMO1.EHN. ML:1.3 0.0000994 0.3 AML other m 2022-07-04T03:27:34.57
IV.MMO1.EHE. ML:1.2 0.0000815 0.48 AML other m 2022-07-04T03:27:34.21
IV.CAMP.HHE. ML:0.8 0.0000298 0.74 AML other m 2022-07-04T03:27:34.61
IV.CAMP.HHN. ML:0.6 0.000021499999999999997 0.22 AML other m 2022-07-04T03:27:35.80
IV.ARRO.EHN. ML:0.9 0.000028 0.58 AML other m 2022-07-04T03:27:36.70
IV.ARRO.EHE. ML:0.9 0.0000331 0.2 AML other m 2022-07-04T03:27:36.99
IV.FDMO.HHN. ML:0.8 0.00002285 0.56 AML other m 2022-07-04T03:27:37.37
IV.FDMO.HHE. ML:0.6 0.000017 0.48 AML other m 2022-07-04T03:27:37.70
IV.MOMA.HHE. ML:1.2 0.000041349999999999995 1.4 AML other m 2022-07-04T03:27:40.16
IV.MOMA.HHN. ML:1.2 0.000044649999999999994 0.16 AML other m 2022-07-04T03:27:40.85
IV.MML1.EHE. ML:0.7 0.000013899999999999999 0.78 AML other m 2022-07-04T03:27:41.12
IV.MML1.EHN. ML:0.7 0.000014995 0.86 AML other m 2022-07-04T03:27:41.44
IV.ASSB.HHN. ML:1.2 0.000034250000000000006 1.36 AML other m 2022-07-04T03:27:42.94
IV.ASSB.HHE. ML:1.0 0.000026099999999999997 0.64 AML other m 2022-07-04T03:27:42.78
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