Earthquake with magnitude of ML 0.9 on date 02-08-2023 and time 03:03:23 (Italy) in region 5 km SE Cittareale (RI)

A magnitude ML 0.9 earthquake occured in region: 5 km SE Cittareale (RI), on

  • 02-08-2023 01:03:23 (UTC)
  • 02-08-2023 03:03:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.5910, 13.2090 at 11 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 8 2657 3139
Montereale AQ 8 2581 5720
Borbona RI 11 617 6337
Capitignano AQ 11 665 7002
Posta RI 12 694 7696
Accumoli RI 12 667 8363
Campotosto AQ 14 542 8905
Cagnano Amiterno AQ 15 1369 10274
Barete AQ 17 737 11011
Pizzoli AQ 19 4326 15337
Micigliano RI 20 127 15464

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)
46 Km E of Terni (111501 inhabitants)
58 Km SE of Foligno (57155 inhabitants)
77 Km NE of Guidonia Montecelio (88673 inhabitants)
77 Km NE of Tivoli (56533 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
83 Km W of Chieti (51815 inhabitants)
84 Km W of Pescara (121014 inhabitants)
88 Km SE of Perugia (166134 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
98 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 0.9 2023-08-02
01:03:23
42.5912 13.2087 11 2023-08-02
01:09:10
Sala Sismica INGV-Roma 119781781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-02 01:03:23 ± 0.09
Latitude 42.5912 ± 0.0045
Longitude 13.2087 ± 0.0061
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119781781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 479
Semi-minor axis of confidence ellipse (meter) 297
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 53
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
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) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.08274
Epicentral distance of station farthest from the epicenter (degree) 0.33005
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 119781781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-02 01:09:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MC2.EHE. 2023-08-02T01:03:36.04 0.3 undecidable manual S 357 35.5422 50 0.23 70
IV.MMO1.HNE. 2023-08-02T01:03:35.89 0.3 undecidable manual S 16 35.5422 50 0.09 72
IV.NRCA.HHZ. 2023-08-02T01:03:33.19 0.3 undecidable manual S 344 27.9498 50 -0.6 64
IV.GAVE.HNN. 2023-08-02T01:03:33.71 0.3 undecidable manual S 294 28.0497 50 -0.09 74
IV.MC2.EHE. 2023-08-02T01:03:31.26 0.6 undecidable manual P 357 35.5422 50 0.51 44
IV.MMO1.HNE. 2023-08-02T01:03:30.77 0.6 undecidable manual P 16 35.5422 50 0.03 49
IV.FIAM.HHZ. 2023-08-02T01:03:30.89 0.3 undecidable manual P 192 36.6411 50 -0.02 72
IV.ARRO.EHZ. 2023-08-02T01:03:30.84 0.1 undecidable manual P 268 36.2415 50 -0.01 97
IV.TERO.HHZ. 2023-08-02T01:03:30.00 0.1 undecidable manual P 84 32.4453 50 -0.27 93
IV.GAVE.HNN. 2023-08-02T01:03:29.43 0.1 undecidable manual P 294 28.0497 50 -0.15 97
IV.NRCA.HHZ. 2023-08-02T01:03:29.44 0.1 undecidable manual P 344 27.9498 50 -0.14 97
IV.SMA1.EHZ. 2023-08-02T01:03:29.28 0.3 undecidable manual S 67 11.1777 134 0.03 75
IV.LNSS.HHZ. 2023-08-02T01:03:29.87 0.3 undecidable manual S 275 13.7751 128 -0.06 75
IV.RM33.EHZ. 2023-08-02T01:03:28.56 0.3 undecidable manual S 177 9.1797 140 -0.2 74
IV.SMA1.EHZ. 2023-08-02T01:03:27.17 0.1 undecidable manual P 67 11.1777 134 0.22 99
IV.LNSS.HHZ. 2023-08-02T01:03:27.42 0.1 undecidable manual P 275 13.7751 128 0.07 100
IV.RM33.EHZ. 2023-08-02T01:03:26.86 0.1 undecidable manual P 177 9.1797 140 0.19 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:0.6 0.00004905729 0.12 AML other m 2023-08-02T01:03:28.92
IV.RM33.EHN. ML:0.6 0.000056304889999999996 0.2 AML other m 2023-08-02T01:03:28.92
IV.SMA1.EHE. ML:1.0 0.00011685028 0.22 AML other m 2023-08-02T01:03:29.94
IV.SMA1.EHN. ML:0.7 0.00005931581500000001 0.12 AML other m 2023-08-02T01:03:30.11
IV.LNSS.HHE. ML:0.8 0.0000693 0.1 AML other m 2023-08-02T01:03:30.53
IV.LNSS.HHN. ML:0.6 0.000041429314999999994 0.42 AML other m 2023-08-02T01:03:30.05
IV.RM33.HNE. ML:1.1 0.000146184565 0.74 AML other m 2023-08-02T01:03:33.05
IV.RM33.HNN. ML:0.9 0.00010595187000000001 0.44 AML other m 2023-08-02T01:03:28.28
IV.LNSS.HNE. ML:0.8 0.00007232144999999999 0.28 AML other m 2023-08-02T01:03:30.08
IV.LNSS.HNN. ML:1.3 0.00020634717 1.02 AML other m 2023-08-02T01:03:37.00
IV.NRCA.HNE. ML:1.4 0.00011763325 0.7904 AML other m 2023-08-02T01:03:42.33
IV.NRCA.HNN. ML:1.5 0.000150782425 0.7496 AML other m 2023-08-02T01:03:43.19
IV.NRCA.HHE. ML:0.6 0.00001898121 0.12 AML other m 2023-08-02T01:03:33.71
IV.NRCA.HHN. ML:0.6 0.000018282485000000002 0.1 AML other m 2023-08-02T01:03:34.03
IV.TERO.HHE. ML:0.7 0.000018959305000000004 0.9 AML other m 2023-08-02T01:03:44.96
IV.TERO.HHN. ML:0.1 0.0000043162665 0.32 AML other m 2023-08-02T01:03:44.02
IV.TERO.HNE. ML:1.3 0.00008915693 0.8 AML other m 2023-08-02T01:03:30.88
IV.TERO.HNN. ML:1.3 0.00008841962 0.6104 AML other m 2023-08-02T01:03:47.17
IV.ARRO.EHE. ML:0.8 0.000023268595 1.2 AML other m 2023-08-02T01:03:33.53
IV.ARRO.EHN. ML:0.7 0.00001940451 1.18 AML other m 2023-08-02T01:03:48.71
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