Earthquake with magnitude of ML 1.5 on date 23-09-2023 and time 06:57:16 (Italy) in region 5 km SE Cittareale (RI)

A magnitude ML 1.5 earthquake occured in region: 5 km SE Cittareale (RI), on

  • 23-09-2023 04:57:16 (UTC)
  • 23-09-2023 06:57:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5960, 13.2140 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
Cittareale RI 5 482 482
Amatrice RI 7 2657 3139
Montereale AQ 8 2581 5720
Capitignano AQ 11 665 6385
Borbona RI 11 617 7002
Accumoli RI 12 667 7669
Posta RI 12 694 8363
Campotosto AQ 14 542 8905
Cagnano Amiterno AQ 15 1369 10274
Barete AQ 17 737 11011
Pizzoli AQ 19 4326 15337

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of L'Aquila (69753 inhabitants)
41 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
58 Km SE of Foligno (57155 inhabitants)
77 Km W of Montesilvano (53738 inhabitants)
77 Km NE of Guidonia Montecelio (88673 inhabitants)
78 Km NE of Tivoli (56533 inhabitants)
83 Km W of Chieti (51815 inhabitants)
83 Km W of Pescara (121014 inhabitants)
88 Km SE of Perugia (166134 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
99 Km NE of Roma (2864731 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 1.5 2023-09-23
04:57:16
42.596 13.2137 15 2023-09-23
05:07:59
Sala Sismica INGV-Roma 121378051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-23 04:57:16 ± 0.11
Latitude 42.5960 ± 0.0054
Longitude 13.2137 ± 0.0086
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 121378051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 602
Semi-minor axis of confidence ellipse (meter) 433
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 272
Circular confidence region, given by single value of horizontal uncertainty (meter) 600.0
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 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.08723
Epicentral distance of station farthest from the epicenter (degree) 0.49553
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 121378051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-23 05:07:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2023-09-23T04:57:34.10 0.6 undecidable manual S 359 55.0005 95 0.73 41
IV.GAVE.EHZ. 2023-09-23T04:57:26.05 0.6 undecidable manual S 292 28.1496 104 -0.23 49
IV.TERO.HHZ. 2023-09-23T04:57:26.88 0.6 undecidable manual S 85 32.0457 101 -0.4 47
IV.MF5.EHZ. 2023-09-23T04:57:25.34 0.6 positive manual P 25 47.8188 96 0.33 46
IV.CSP1.EHZ. 2023-09-23T04:57:25.92 0.6 positive manual P 359 55.0005 95 -0.18 47
IV.CAMP.HHZ. 2023-09-23T04:57:23.57 0.6 undecidable manual S 113 17.2716 118 0.01 52
IV.FIAM.HHZ. 2023-09-23T04:57:23.67 0.6 negative manual P 192 37.2294 99 0.29 47
IV.SMA1.EHZ. 2023-09-23T04:57:22.16 0.6 undecidable manual S 69 10.6782 136 0.02 52
IV.TERO.HHZ. 2023-09-23T04:57:22.44 0.1 positive manual P 85 32.0457 101 -0.15 99
IV.RM33.EHZ. 2023-09-23T04:57:22.00 0.6 undecidable manual S 180 9.6792 139 0.04 52
IV.GIGS.HHZ. 2023-09-23T04:57:22.83 1.0 undecidable manual P 118 33.3444 100 0.03 25
IV.MMO1.EHZ. 2023-09-23T04:57:22.84 0.6 positive manual P 15 34.9428 100 -0.19 48
IV.NRCA.HHZ. 2023-09-23T04:57:21.61 0.6 undecidable manual P 343 27.5502 104 -0.31 48
IV.GAVE.EHZ. 2023-09-23T04:57:21.91 0.1 positive manual P 292 28.1496 104 -0.1 100
IV.CAMP.HHZ. 2023-09-23T04:57:20.58 0.6 undecidable manual P 113 17.2716 118 0.14 50
IV.SMA1.EHZ. 2023-09-23T04:57:19.80 1.0 undecidable manual P 69 10.6782 136 0.18 25
IV.RM33.EHZ. 2023-09-23T04:57:19.75 0.6 undecidable manual P 180 9.6792 139 0.23 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:2.1 0.001165 0.26 AML other m 2023-09-23T04:57:22.36
IV.RM33.EHE. ML:1.5 0.00033150000000000003 0.12 AML other m 2023-09-23T04:57:22.48
IV.RM33.EHN. ML:1.6 0.000343 0.92 AML other m 2023-09-23T04:57:22.33
IV.SMA1.EHN. ML:1.6 0.00041349999999999997 0.74 AML other m 2023-09-23T04:57:23.15
IV.CAMP.HHN. ML:1.0 0.00007065 0.56 AML other m 2023-09-23T04:57:23.41
IV.CAMP.HHE. ML:0.8 0.00005075 0.48 AML other m 2023-09-23T04:57:26.54
IV.GAVE.EHN. ML:1.6 0.00018099999999999998 0.3 AML other m 2023-09-23T04:57:26.31
IV.GAVE.EHE. ML:1.7 0.000223 0.12 AML other m 2023-09-23T04:57:26.63
IV.TERO.HHN. ML:1.4 0.00010619999999999999 0.3 AML other m 2023-09-23T04:57:27.18
IV.TERO.HHE. ML:1.5 0.0001385 0.72 AML other m 2023-09-23T04:57:27.11
IV.NRCA.HHE. ML:1.5 0.00013900000000000002 0.16 AML other m 2023-09-23T04:57:27.28
IV.NRCA.HHN. ML:1.3 0.0000919 1.1 AML other m 2023-09-23T04:57:28.79
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download