Earthquake with magnitude of ML 1.2 on date 25-03-2023 and time 22:27:10 (UTC) in region 4 km W Accumoli (RI)

A magnitude ML 1.2 earthquake occured in region: 4 km W Accumoli (RI), on

  • 25-03-2023 22:27:10 (UTC)
  • 25-03-2023 23:27:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6940, 13.2050 at 10 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 4 667 667
Cittareale RI 9 482 1149
Amatrice RI 10 2657 3806
Arquata del Tronto AP 12 1178 4984
Norcia PG 14 4957 9941
Cascia PG 16 3217 13158
Acquasanta Terme AP 19 2916 16074
Montereale AQ 19 2581 18655
Montegallo AP 20 523 19178

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
41 Km NW of L'Aquila (69753 inhabitants)
48 Km E of Terni (111501 inhabitants)
50 Km SE of Foligno (57155 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
81 Km SE of Perugia (166134 inhabitants)
87 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km W of Pescara (121014 inhabitants)
88 Km NE of Tivoli (56533 inhabitants)
88 Km W of Chieti (51815 inhabitants)
95 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 1.2 2023-03-25
22:27:10
42.6942 13.2048 10 2023-03-25
22:51:10
Sala Sismica INGV-Roma 115733151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-03-25 22:27:10 ± 0.11
Latitude 42.6942 ± 0.0027
Longitude 13.2048 ± 0.0049
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 115733151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 407
Semi-minor axis of confidence ellipse (meter) 127
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 267
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.11511
Epicentral distance of station farthest from the epicenter (degree) 0.38041
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:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 115733151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-03-25 22:51:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2023-03-25T22:27:19.14 0.3 undecidable manual S 24 24.8529 112 -0.18 72
IV.CESI.HHZ. 2023-03-25T22:27:18.28 1.0 negative manual P 325 42.2244 50 0.15 23
IV.RM33.EHZ. 2023-03-25T22:27:17.62 0.3 undecidable manual S 178 20.5683 116 -0.35 70
IV.FDMO.HHZ. 2023-03-25T22:27:17.60 1.0 negative manual P 346 39.1275 50 -0.05 24
IV.NRCA.HHZ. 2023-03-25T22:27:16.89 0.3 undecidable manual S 334 17.1717 120 -0.02 76
IV.LNSS.HHZ. 2023-03-25T22:27:16.85 0.3 undecidable manual S 233 16.872 120 0.03 75
IV.SMA1.EHZ. 2023-03-25T22:27:15.82 0.3 undecidable manual S 124 12.7761 128 0.17 74
IV.MMO1.EHZ. 2023-03-25T22:27:15.27 1.0 positive manual P 24 24.8529 112 -0.13 24
IV.GAVE.EHZ. 2023-03-25T22:27:15.41 0.6 undecidable manual P 270 25.3524 111 -0.09 49
IV.LNSS.HHZ. 2023-03-25T22:27:14.18 0.3 positive manual P 233 16.872 120 0.22 72
IV.RM33.EHZ. 2023-03-25T22:27:14.53 0.3 negative manual P 178 20.5683 116 -0.09 74
IV.NRCA.HHZ. 2023-03-25T22:27:14.06 0.1 undecidable manual P 334 17.1717 120 0.05 100
IV.SMA1.EHZ. 2023-03-25T22:27:13.57 0.6 negative manual P 124 12.7761 128 0.29 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.1 0.000152 0.38 AML other m 2023-03-25T22:27:16.28
IV.SMA1.EHE. ML:1.2 0.000158 0.36 AML other m 2023-03-25T22:27:16.53
IV.LNSS.HHE. ML:1.4 0.00020050000000000002 0.3 AML other m 2023-03-25T22:27:17.17
IV.LNSS.HHN. ML:1.4 0.000193 0.14 AML other m 2023-03-25T22:27:17.36
IV.RM33.EHE. ML:1.1 0.00009884999999999999 1.74 AML other m 2023-03-25T22:27:17.87
IV.RM33.EHN. ML:1.2 0.00011734999999999999 1.76 AML other m 2023-03-25T22:27:18.90
IV.GAVE.EHN. ML:1.2 0.00009944999999999999 0.16 AML other m 2023-03-25T22:27:19.67
IV.GAVE.EHE. ML:1.2 0.00008410000000000001 1.2 AML other m 2023-03-25T22:27:19.69
IV.MMO1.EHN. ML:0.9 0.000046 0.42 AML other m 2023-03-25T22:27:19.82
IV.MMO1.EHE. ML:0.9 0.00005110000000000001 0.42 AML other m 2023-03-25T22:27:20.73
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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