Earthquake with magnitude of ML 1.2 on date 16-03-2023 and time 08:30:32 (Italy) in region 6 km NW Accumoli (RI)

A magnitude ML 1.2 earthquake occured in region: 6 km NW Accumoli (RI), on

  • 16-03-2023 07:30:32 (UTC)
  • 16-03-2023 08:30:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7360, 13.2080 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.

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 6 667 667
Arquata del Tronto AP 8 1178 1845
Norcia PG 11 4957 6802
Amatrice RI 14 2657 9459
Cittareale RI 14 482 9941
Montegallo AP 16 523 10464
Cascia PG 16 3217 13681
Acquasanta Terme AP 17 2916 16597
Castelsantangelo sul Nera MC 18 281 16878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km W of Teramo (54892 inhabitants)
45 Km NW of L'Aquila (69753 inhabitants)
48 Km SE of Foligno (57155 inhabitants)
50 Km E of Terni (111501 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
88 Km W of Pescara (121014 inhabitants)
90 Km W of Chieti (51815 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km NE of Tivoli (56533 inhabitants)
97 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 1.2 2023-03-16
07:30:32
42.7357 13.2083 11 2024-03-01
17:18:10
Bollettino Sismico Italiano INGV 118121961
Reviewed
Rev100
ML 2.0 2023-03-16
07:30:32
42.7357 13.2092 11 2023-03-16
08:15:41
Sala Sismica INGV-Roma 115423001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-16 07:30:32 ± 0.04
Latitude 42.7357 ± 0.0018
Longitude 13.2083 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118121961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 245
Semi-minor axis of confidence ellipse (meter) 178
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 80
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.35613
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 115423001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-16 08:15:41

ML:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 30
Type of magnitude ML
Reference to an origin 118121961
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-06-05 08:25:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FRON.EHZ. 2023-03-16T07:30:48.11 3.0 undecidable manual P 2.97 0
IV.CSP1.EHZ. 2023-03-16T07:30:45.42 0.3 undecidable manual S 360 39.5271 50 0.31 68
IV.CESI.HHZ. 2023-03-16T07:30:44.90 0.3 undecidable manual S 321 38.7279 50 -0.01 72
IV.FDMO.HHE. 2023-03-16T07:30:43.80 0.6 undecidable manual S 344 34.8429 50 -0.05 48
IV.TERO.HHZ. 2023-03-16T07:30:43.50 0.3 undecidable manual S 111 34.6431 50 -0.3 68
IV.RM33.EHZ. 2023-03-16T07:30:41.30 0.3 undecidable manual S 179 25.1526 50 0.02 74
IV.GAVE.EHZ. 2023-03-16T07:30:41.30 0.3 undecidable manual S 259 26.0517 50 -0.22 71
IV.MMO1.EHZ. 2023-03-16T07:30:40.00 0.3 undecidable manual S 28 20.5683 50 -0.05 74
IV.LNSS.HHZ. 2023-03-16T07:30:39.90 0.3 undecidable manual S 223 20.1687 50 -0.04 74
IV.CSP1.EHZ. 2023-03-16T07:30:39.98 0.6 undecidable manual P 360 39.5271 50 0.37 45
7F.SIB1.EHN. 2023-03-16T07:30:39.60 0.3 undecidable manual S 16 18.3705 50 0.14 73
IV.CESI.HHZ. 2023-03-16T07:30:39.48 0.1 undecidable manual P 321 38.7279 50 -0.01 96
7F.SIB2.EHZ. 2023-03-16T07:30:39.40 0.3 undecidable manual S 24 18.87 50 -0.21 71
IV.MTRA.EHZ. 2023-03-16T07:30:38.50 1.0 undecidable manual S 81 15.4734 125 -0.17 24
IV.FDMO.HHE. 2023-03-16T07:30:38.85 0.6 undecidable manual P 344 34.8429 50 -0.03 48
IV.SMA1.EHZ. 2023-03-16T07:30:38.60 0.3 undecidable manual S 138 15.5733 125 -0.1 74
IV.TERO.HHZ. 2023-03-16T07:30:38.70 0.3 undecidable manual P 111 34.6431 50 -0.15 71
7F.SIB3.EHZ. 2023-03-16T07:30:38.70 0.3 undecidable manual S 18 16.2726 124 -0.19 73
IV.RM33.EHZ. 2023-03-16T07:30:37.66 0.3 undecidable manual P 179 25.1526 50 0.27 70
IV.GAVE.EHZ. 2023-03-16T07:30:37.53 0.1 negative manual P 259 26.0517 50 0 99
IV.NRCA.HHZ. 2023-03-16T07:30:37.80 0.1 undecidable manual S 325 13.2756 130 -0.26 97
IV.MTRA.EHZ. 2023-03-16T07:30:36.01 0.3 positive manual P 81 15.4734 125 0.12 73
IV.LNSS.HHZ. 2023-03-16T07:30:36.69 0.3 positive manual P 223 20.1687 50 0.07 74
IV.SMA1.EHZ. 2023-03-16T07:30:36.08 0.3 negative manual P 138 15.5733 125 0.18 72
7F.SIB1.EHN. 2023-03-16T07:30:36.51 0.1 positive manual P 16 18.3705 50 0.17 97
7F.SIB3.EHZ. 2023-03-16T07:30:36.05 0.1 positive manual P 18 16.2726 124 0.04 99
IV.MMO1.EHZ. 2023-03-16T07:30:36.75 0.1 positive manual P 28 20.5683 50 0.06 99
7F.SIB2.EHZ. 2023-03-16T07:30:36.44 0.1 positive manual P 24 18.87 50 0.01 100
IV.NRCA.HHZ. 2023-03-16T07:30:35.61 0.1 negative manual P 325 13.2756 130 0.07 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:2.0 0.0010574999999999998 0.08 AML other m 2023-03-16T07:30:37.94
IV.NRCA.HNE. ML:2.0 0.00103392245 0.0768 AML other m 2023-03-16T07:30:37.94
IV.NRCA.HHN. ML:2.0 0.0009410000000000001 0.1 AML other m 2023-03-16T07:30:37.90
IV.NRCA.HNN. ML:1.9 0.0008165 0.1 AML other m 2023-03-16T07:30:37.96
IV.MTRA.EHE. ML:1.2 0.000162476765 0.5184 AML other m 2023-03-16T07:30:38.36
IV.MTRA.EHN. ML:0.9 0.00007641276 0.1408 AML other m 2023-03-16T07:30:39.16
IV.MTRA.HNE. ML:1.1 0.0001197572 0.3904 AML other m 2023-03-16T07:30:38.51
IV.MTRA.HNN. ML:1.1 0.00011624357 1.2608 AML other m 2023-03-16T07:30:38.90
IV.SMA1.EHE. ML:0.9 0.000063866595 0.16 AML other m 2023-03-16T07:30:38.87
IV.SMA1.EHN. ML:0.9 0.000069333665 3.4624 AML other m 2023-03-16T07:30:37.06
IV.LNSS.HNE. ML:1.3 0.000138830285 0.5504 AML other m 2023-03-16T07:30:39.95
IV.LNSS.HHE. ML:1.0 0.00008086428499999999 0.16 AML other m 2023-03-16T07:30:41.10
IV.LNSS.HNN. ML:1.4 0.00017584741000000001 0.3712 AML other m 2023-03-16T07:30:38.81
IV.LNSS.HHN. ML:1.2 0.00011631740999999999 0.16 AML other m 2023-03-16T07:30:40.16
IV.MMO1.EHN. ML:1.0 0.000066921465 0.1024 AML other m 2023-03-16T07:30:40.19
IV.MMO1.HNE. ML:3.0 0.00674628 0.928 AML other m 2023-03-16T07:30:40.44
IV.MMO1.EHE. ML:1.1 0.000078299975 0.16 AML other m 2023-03-16T07:30:40.52
IV.MMO1.HNN. ML:2.8 0.004398666000000001 0.6592 AML other m 2023-03-16T07:30:38.54
IV.GAVE.EHE. ML:1.2 0.00009116558 0.1792 AML other m 2023-03-16T07:30:41.51
IV.GAVE.HNN. ML:1.4 0.00014363537 1.4144 AML other m 2023-03-16T07:30:42.12
IV.GAVE.EHN. ML:1.0 0.000059649985000000006 0.1024 AML other m 2023-03-16T07:30:42.54
IV.GAVE.HNE. ML:1.4 0.00012845135 1.3376 AML other m 2023-03-16T07:30:40.99
IV.RM33.HNN. ML:1.3 0.000116103965 2.0928 AML other m 2023-03-16T07:30:41.64
IV.RM33.EHE. ML:0.7 0.000030138325 0.1216 AML other m 2023-03-16T07:30:41.70
IV.RM33.EHN. ML:0.6 0.00002596179575 0.8768 AML other m 2023-03-16T07:30:41.45
IV.RM33.HNE. ML:1.4 0.00014045140000000002 0.8064 AML other m 2023-03-16T07:30:41.41
IV.TERO.HNN. ML:1.7 0.00020525345500000002 0.5824 AML other m 2023-03-16T07:30:42.27
IV.TERO.HHE. ML:0.9 0.000036243924999999995 0.1408 AML other m 2023-03-16T07:30:44.21
IV.TERO.HNE. ML:1.3 0.000073505385 0.48 AML other m 2023-03-16T07:30:43.39
IV.TERO.HHN. ML:1.1 0.000047989335 0.0832 AML other m 2023-03-16T07:30:44.07
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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