Earthquake with magnitude of ML 1.8 on date 30-05-2023 and time 19:39:27 (Italy) in region 5 km SW Accumoli (RI)

A magnitude ML 1.8 earthquake occured in region: 5 km SW Accumoli (RI), on

  • 30-05-2023 17:39:27 (UTC)
  • 30-05-2023 19:39:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6630, 13.2100 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.

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 5 667 667
Cittareale RI 6 482 1149
Amatrice RI 7 2657 3806
Arquata del Tronto AP 14 1178 4984
Montereale AQ 16 2581 7565
Cascia PG 17 3217 10782
Norcia PG 17 4957 15739
Capitignano AQ 17 665 16404
Campotosto AQ 18 542 16946
Borbona RI 18 617 17563
Posta RI 18 694 18257

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km NW of L'Aquila (69753 inhabitants)
41 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
79 Km W of Montesilvano (53738 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
85 Km W of Pescara (121014 inhabitants)
86 Km W of Chieti (51815 inhabitants)
94 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 1.8 2023-05-30
17:39:27
42.6627 13.2097 15 2023-05-30
17:51:05
Sala Sismica INGV-Roma 117890671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-30 17:39:27 ± 0.05
Latitude 42.6627 ± 0.0018
Longitude 13.2097 ± 0.0024
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 117890671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 217
Semi-minor axis of confidence ellipse (meter) 110
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
Circular confidence region, given by single value of horizontal uncertainty (meter) 220.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42898
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 117890671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-30 17:51:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.OSSC.HHZ. 2023-05-30T17:40:18.45 3.0 undecidable manual Sn -0.32 0
IV.SFI.EHZ. 2023-05-30T17:39:59.14 3.0 undecidable manual Pg 3.81 0
IV.TOLF.HHZ. 2023-05-30T17:39:48.43 3.0 undecidable manual P 0.13 0
IV.MGAB.HHZ. 2023-05-30T17:39:46.44 3.0 negative manual P 1.93 0
IV.CSP1.EHZ. 2023-05-30T17:39:43.49 0.6 undecidable manual S 360 47.619 96 0.35 44
IV.CESI.HHZ. 2023-05-30T17:39:42.90 0.6 undecidable manual S 327 45.3213 96 0.36 45
IV.GUMA.HHZ. 2023-05-30T17:39:42.63 0.3 undecidable manual S 13 45.5211 96 0.05 71
IV.FDMO.HHZ. 2023-05-30T17:39:41.88 0.3 undecidable manual S 347 42.624 97 0.06 71
IV.SRES.HHZ. 2023-05-30T17:39:41.73 3.0 undecidable manual P 0.4 0
IV.GIGS.HHZ. 2023-05-30T17:39:40.42 0.6 undecidable manual S 128 37.629 98 -0.08 48
IV.ASSB.HHZ. 2023-05-30T17:39:38.76 3.0 undecidable manual P -0.4 0
IV.MMO1.EHZ. 2023-05-30T17:39:38.00 0.6 undecidable manual S 20 27.9498 103 0.06 49
IV.TERO.HHZ. 2023-05-30T17:39:38.98 0.3 undecidable manual S 98 32.4453 100 -0.14 71
IV.VCEL.EHZ. 2023-05-30T17:39:38.95 3.0 positive manual P -0.21 0
IV.MML1.EHZ. 2023-05-30T17:39:37.73 3.0 positive manual P -0.15 0
IV.GAVE.EHZ. 2023-05-30T17:39:37.20 0.6 undecidable manual S 277 25.9518 104 -0.22 47
7F.SIB2.EHZ. 2023-05-30T17:39:37.51 0.6 undecidable manual S 17 26.4513 104 -0.05 49
IV.OFFI.HHZ. 2023-05-30T17:39:37.94 3.0 negative manual P 0.58 0
IV.CAMP.HHZ. 2023-05-30T17:39:36.33 0.3 undecidable manual S 131 21.4674 110 0.04 74
7F.SIB3.EHZ. 2023-05-30T17:39:36.88 0.6 undecidable manual S 12 24.0537 106 -0.06 49
IV.CSP1.EHZ. 2023-05-30T17:39:36.64 0.1 undecidable manual P 360 47.619 96 -0.06 94
IV.CESI.HHZ. 2023-05-30T17:39:36.33 0.1 undecidable manual P 327 45.3213 96 -0.03 94
IV.GUMA.HHZ. 2023-05-30T17:39:36.76 0.3 undecidable manual P 13 45.5211 96 0.38 67
IV.FIAM.HHZ. 2023-05-30T17:39:36.31 0.3 undecidable manual P 190 44.4222 96 0.1 71
IV.FDMO.HHZ. 2023-05-30T17:39:35.83 1.0 undecidable manual P 347 42.624 97 -0.12 23
IV.RM33.EHZ. 2023-05-30T17:39:35.32 0.3 undecidable manual S 179 17.0718 118 0.12 73
IV.MTRA.EHZ. 2023-05-30T17:39:35.49 0.3 undecidable manual S 55 18.4704 115 -0.05 75
IV.NRCA.HHZ. 2023-05-30T17:39:35.80 0.6 undecidable manual S 338 20.4684 111 -0.24 48
IV.GIGS.HHZ. 2023-05-30T17:39:34.94 1.0 undecidable manual P 128 37.629 98 -0.24 23
IV.LNSS.HHZ. 2023-05-30T17:39:34.75 0.6 undecidable manual S 244 15.3735 122 -0.05 50
IV.TERO.HHZ. 2023-05-30T17:39:34.30 0.1 positive manual P 98 32.4453 100 -0.09 96
IV.ARRO.EHZ. 2023-05-30T17:39:34.94 3.0 negative manual P -0.22 0
IV.MMO1.EHZ. 2023-05-30T17:39:33.67 0.3 positive manual P 20 27.9498 103 -0.03 73
7F.SIB3.EHZ. 2023-05-30T17:39:33.04 0.1 undecidable manual P 12 24.0537 106 -0.09 97
IV.GAVE.EHZ. 2023-05-30T17:39:33.31 0.1 positive manual P 277 25.9518 104 -0.1 96
7F.SIB2.EHZ. 2023-05-30T17:39:33.37 0.1 undecidable manual P 17 26.4513 104 -0.12 96
IV.MTRA.EHZ. 2023-05-30T17:39:32.37 0.1 undecidable manual P 55 18.4704 115 0.05 99
IV.NRCA.HHZ. 2023-05-30T17:39:32.53 0.1 negative manual P 338 20.4684 111 -0.08 98
IV.CAMP.HHZ. 2023-05-30T17:39:32.85 0.3 undecidable manual P 131 21.4674 110 0.1 73
IV.RM33.EHZ. 2023-05-30T17:39:32.26 0.1 undecidable manual P 179 17.0718 118 0.14 98
IV.LNSS.HHZ. 2023-05-30T17:39:31.94 0.1 undecidable manual P 244 15.3735 122 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HNE. ML:2.5 0.002315 1.86 AML other m 2023-05-30T17:39:34.06
IV.LNSS.HHE. ML:2.5 0.00242 1.86 AML other m 2023-05-30T17:39:34.06
IV.LNSS.HHN. ML:2.2 0.00126 0.7 AML other m 2023-05-30T17:39:35.26
IV.LNSS.HNN. ML:2.2 0.0011619999999999998 0.7 AML other m 2023-05-30T17:39:35.26
IV.MTRA.EHE. ML:2.0 0.000678 0.44 AML other m 2023-05-30T17:39:35.04
IV.RM33.EHN. ML:1.9 0.000632 0.24 AML other m 2023-05-30T17:39:35.41
IV.RM33.HNN. ML:2.0 0.00065 0.24 AML other m 2023-05-30T17:39:35.41
IV.RM33.HNE. ML:1.9 0.0005785 0.3 AML other m 2023-05-30T17:39:35.64
IV.RM33.EHE. ML:1.9 0.000575 0.3 AML other m 2023-05-30T17:39:35.64
IV.MTRA.HNE. ML:1.9 0.0005480000000000001 1.66 AML other m 2023-05-30T17:39:35.04
IV.NRCA.HHN. ML:1.9 0.00047050000000000005 0.14 AML other m 2023-05-30T17:39:36.11
IV.NRCA.HNN. ML:1.8 0.0004275 0.76 AML other m 2023-05-30T17:39:36.12
IV.NRCA.HHE. ML:2.1 0.0007840000000000001 0.2 AML other m 2023-05-30T17:39:36.27
IV.NRCA.HNE. ML:2.0 0.0007185000000000001 0.2 AML other m 2023-05-30T17:39:36.18
IV.MTRA.HNN. ML:1.8 0.000409 0.58 AML other m 2023-05-30T17:39:36.23
IV.MTRA.EHN. ML:1.7 0.0003725 0.6 AML other m 2023-05-30T17:39:36.23
IV.GAVE.EHN. ML:2.0 0.000472 0.16 AML other m 2023-05-30T17:39:37.53
IV.GAVE.EHE. ML:2.1 0.0006875 0.24 AML other m 2023-05-30T17:39:37.76
IV.MMO1.EHN. ML:1.7 0.00023999999999999998 0.08 AML other m 2023-05-30T17:39:38.15
IV.MMO1.EHE. ML:1.8 0.0003055 0.16 AML other m 2023-05-30T17:39:38.17
IV.TERO.HHN. ML:1.9 0.000307 0.08 AML other m 2023-05-30T17:39:39.11
IV.TERO.HHE. ML:1.6 0.0001585 1.4 AML other m 2023-05-30T17:39:39.99
IV.ARRO.EHE. ML:1.4 0.00009504999999999999 0.16 AML other m 2023-05-30T17:39:40.69
IV.FIAM.HHN. ML:1.3 0.000052499999999999995 0.78 AML other m 2023-05-30T17:39:42.55
IV.FDMO.HHE. ML:1.3 0.0000585 0.28 AML other m 2023-05-30T17:39:42.87
IV.ARRO.EHN. ML:1.3 0.00007730000000000001 1.8 AML other m 2023-05-30T17:39:42.00
IV.CESI.HHN. ML:1.3 0.0000579 0.18 AML other m 2023-05-30T17:39:43.15
IV.FDMO.HHN. ML:1.1 0.00003924999999999999 0.24 AML other m 2023-05-30T17:39:43.06
IV.FIAM.HHE. ML:1.2 0.0000511 0.18 AML other m 2023-05-30T17:39:43.72
IV.CESI.HHE. ML:1.1 0.00003665 0.68 AML other m 2023-05-30T17:39:44.14
IV.CSP1.EHE. ML:1.8 0.0001505 0.36 AML other m 2023-05-30T17:39:44.81
IV.CSP1.EHN. ML:1.8 0.0001605 0.88 AML other m 2023-05-30T17:39:46.92
IV.ASSB.HHN. ML:1.3 0.00004065 0.32 AML other m 2023-05-30T17:39:47.82
IV.ASSB.HHE. ML:1.2 0.00003065 0.2 AML other m 2023-05-30T17:39:47.86
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