Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 02-07-2023 and time 11:21:49 (Italy) in region 1 km S Cittareale (RI)

A magnitude ML 1.8 earthquake occured in region: 1 km S Cittareale (RI), on

  • 02-07-2023 09:21:49 (UTC)
  • 02-07-2023 11:21:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6080, 13.1620 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.

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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 1 482 482
Posta RI 11 694 1176
Borbona RI 11 617 1793
Amatrice RI 11 2657 4450
Montereale AQ 11 2581 7031
Accumoli RI 12 667 7698
Capitignano AQ 15 665 8363
Leonessa RI 17 2435 10798
Cagnano Amiterno AQ 17 1369 12167
Cascia PG 17 3217 15384
Campotosto AQ 18 542 15926
Monteleone di Spoleto PG 18 599 16525
Micigliano RI 19 127 16652
Barete AQ 20 737 17389

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NW of L'Aquila (69753 inhabitants)
42 Km E of Terni (111501 inhabitants)
45 Km W of Teramo (54892 inhabitants)
54 Km SE of Foligno (57155 inhabitants)
76 Km NE of Guidonia Montecelio (88673 inhabitants)
78 Km NE of Tivoli (56533 inhabitants)
82 Km W of Montesilvano (53738 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
87 Km W of Chieti (51815 inhabitants)
88 Km W of Pescara (121014 inhabitants)
89 Km E of Viterbo (67173 inhabitants)
97 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 1.8 2023-07-02
09:21:49		 42.6075 13.1623 10 2023-07-02
09:27:37		 Sala Sismica INGV-Roma 118898831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-02 09:21:49 ± 0.08
Latitude 42.6075 ± 0.0045
Longitude 13.1623 ± 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 118898831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 413
Semi-minor axis of confidence ellipse (meter) 402
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 174
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) 106
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 21
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.52430
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 54
Type of magnitude ML
Reference to an origin 118898831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-02 09:27:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MML1.EHZ. 2023-07-02T09:22:08.41 1.0 undecidable manual S 345 58.1973 50 0.43 22
IV.MURB.HHZ. 2023-07-02T09:22:06.68 3.0 positive manual P 1.06 0
IV.FDMO.HHZ. 2023-07-02T09:22:05.66 0.6 undecidable manual S 353 48.0186 50 0.42 44
IV.MNTT.EHZ. 2023-07-02T09:22:01.64 3.0 undecidable manual P 0.58 0
IV.MML1.EHZ. 2023-07-02T09:22:00.29 0.6 negative manual P 345 58.1973 50 0.05 47
IV.OFFI.HHZ. 2023-07-02T09:22:00.65 3.0 undecidable manual P 0.54 0
IV.CSP1.EHZ. 2023-07-02T09:21:59.49 1.0 positive manual P 4 53.8017 50 -0.08 24
IV.MF5.EHZ. 2023-07-02T09:21:59.07 0.6 undecidable manual P 30 48.618 50 0.31 46
IV.MOMA.HHZ. 2023-07-02T09:21:59.55 3.0 positive manual P 0.09 0
IV.GAVE.EHZ. 2023-07-02T09:21:58.50 0.6 undecidable manual S 293 23.8539 112 -0.11 50
IV.MTRA.EHZ. 2023-07-02T09:21:58.65 0.6 undecidable manual S 49 25.2525 111 -0.43 46
IV.FDMO.HHZ. 2023-07-02T09:21:58.40 1.0 undecidable manual P 353 48.0186 50 -0.26 23
IV.NRCA.HHZ. 2023-07-02T09:21:58.91 0.6 undecidable manual S 351 25.3524 111 -0.2 48
IV.CESX.HHZ. 2023-07-02T09:21:58.25 3.0 positive manual P -0.1 0
IV.CAMP.HHZ. 2023-07-02T09:21:57.57 0.6 undecidable manual S 111 21.6672 114 -0.35 47
IV.FIAM.HHZ. 2023-07-02T09:21:56.66 3.0 negative manual P 0.08 0
IV.GIGS.HHZ. 2023-07-02T09:21:56.43 3.0 undecidable manual P -0.35 0
IV.SMA1.EHZ. 2023-07-02T09:21:56.00 0.6 undecidable manual S 80 14.3745 124 0.3 48
IV.TERO.HHZ. 2023-07-02T09:21:56.33 3.0 positive manual P -0.35 0
IV.NRCA.HHZ. 2023-07-02T09:21:55.01 0.1 positive manual P 351 25.3524 111 -0.12 99
IV.ARRO.EHZ. 2023-07-02T09:21:55.98 0.1 positive manual P 265 32.5452 50 -0.31 94
IV.LNSS.HHZ. 2023-07-02T09:21:54.99 0.6 undecidable manual S 267 9.9789 134 0.47 47
IV.CAMP.HHZ. 2023-07-02T09:21:54.41 0.6 undecidable manual P 111 21.6672 114 -0.03 51
IV.RM33.EHZ. 2023-07-02T09:21:54.93 0.6 undecidable manual S 159 11.7771 130 -0.04 51
IV.GAVE.EHZ. 2023-07-02T09:21:54.77 0.1 positive manual P 293 23.8539 112 -0.06 100
IV.MTRA.EHZ. 2023-07-02T09:21:54.96 0.1 undecidable manual P 49 25.2525 111 -0.14 98
IV.SMA1.EHZ. 2023-07-02T09:21:53.56 0.1 positive manual P 80 14.3745 124 0.41 95
IV.LNSS.HHZ. 2023-07-02T09:21:52.62 1.0 undecidable manual P 267 9.9789 134 0.15 25
IV.RM33.EHZ. 2023-07-02T09:21:52.79 0.6 undecidable manual P 159 11.7771 130 0.05 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:2.0 0.001329448 0.1984 AML other m 2023-07-02T09:21:55.86
IV.RM33.HNE. ML:2.0 0.001329607 0.2112 AML other m 2023-07-02T09:21:55.86
IV.RM33.HNN. ML:2.1 0.0014142745 0.2496 AML other m 2023-07-02T09:21:55.09
IV.RM33.EHN. ML:2.0 0.0013347489999999999 0.2368 AML other m 2023-07-02T09:21:54.97
IV.SMA1.EHN. ML:2.0 0.0009673101500000001 0.1408 AML other m 2023-07-02T09:21:56.77
IV.SMA1.EHE. ML:2.4 0.002310451 0.32 AML other m 2023-07-02T09:21:56.52
IV.CAMP.HHE. ML:1.3 0.00013045005 0.2816 AML other m 2023-07-02T09:21:57.84
IV.GAVE.EHE. ML:2.0 0.0007130000000000001 0.16 AML other m 2023-07-02T09:21:58.79
IV.GAVE.EHN. ML:2.1 0.0008269999999999999 0.26 AML other m 2023-07-02T09:21:58.71
IV.MTRA.EHN. ML:2.1 0.0007869999999999999 0.14 AML other m 2023-07-02T09:21:58.89
IV.NRCA.HHN. ML:2.2 0.0008554999999999999 0.14 AML other m 2023-07-02T09:21:59.07
IV.NRCA.HNN. ML:2.0 0.0006901234000000001 0.1408 AML other m 2023-07-02T09:21:59.01
IV.NRCA.HHE. ML:2.4 0.0014750000000000002 1.84 AML other m 2023-07-02T09:21:59.06
IV.NRCA.HNE. ML:2.4 0.0014060705 0.16 AML other m 2023-07-02T09:21:59.07
IV.MTRA.EHE. ML:2.0 0.00061792325 0.1792 AML other m 2023-07-02T09:21:59.34
IV.CAMP.HHN. ML:1.2 0.00011929999999999999 0.94 AML other m 2023-07-02T09:21:59.86
IV.TERO.HHN. ML:1.7 0.00018704635 0.0576 AML other m 2023-07-02T09:22:01.55
IV.TERO.HHE. ML:1.8 0.000259 0.22 AML other m 2023-07-02T09:22:01.48
IV.ARRO.EHN. ML:1.4 0.00011955517500000001 0.1152 AML other m 2023-07-02T09:22:03.16
IV.FIAM.HHE. ML:1.4 0.000097034055 0.2368 AML other m 2023-07-02T09:22:02.23
IV.ARRO.EHE. ML:1.4 0.0001135 0.2 AML other m 2023-07-02T09:22:04.07
IV.FDMO.HHE. ML:1.3 0.0000596 0.22 AML other m 2023-07-02T09:22:05.78
IV.FIAM.HHN. ML:1.4 0.00009821658 0.2176 AML other m 2023-07-02T09:22:03.44
IV.CESX.HHN. ML:1.6 0.0001115 0.26 AML other m 2023-07-02T09:22:06.31
IV.FDMO.HHN. ML:1.5 0.0000838 0.26 AML other m 2023-07-02T09:22:06.34
IV.CSP1.EHE. ML:1.7 0.000122 0.24 AML other m 2023-07-02T09:22:07.68
IV.CESX.HHE. ML:1.4 0.000068566015 0.2816 AML other m 2023-07-02T09:22:06.19
IV.MOMA.HHN. ML:1.6 0.0000995 0.22 AML other m 2023-07-02T09:22:08.20
IV.MOMA.HHE. ML:1.6 0.0000918 0.5 AML other m 2023-07-02T09:22:08.62
IV.CSP1.EHN. ML:1.8 0.00013282844999999997 0.256 AML other m 2023-07-02T09:22:07.88
IV.MML1.EHN. ML:1.1 0.000027318100000000002 0.1152 AML other m 2023-07-02T09:22:09.27
IV.OFFI.HHE. ML:1.9 0.000167 0.28 AML other m 2023-07-02T09:22:10.59
IV.MML1.EHE. ML:1.3 0.000044149999999999996 0.14 AML other m 2023-07-02T09:22:10.61
IV.OFFI.HHN. ML:1.8 0.000132668965 0.3584 AML other m 2023-07-02T09:22:13.15
IV.MURB.HHE. ML:1.6 0.00004653356 0.2432 AML other m 2023-07-02T09:22:20.78
IV.MURB.HHN. ML:1.5 0.000039969055 0.2624 AML other m 2023-07-02T09:22:23.72
IV.GAVE.HNE. ML:2.0 0.0006663999499999999 0.16 AML other m 2023-07-02T09:21:58.79
IV.GAVE.HNN. ML:1.6 0.00027926070000000006 0.256 AML other m 2023-07-02T09:21:58.71
IV.MTRA.HNE. ML:2.0 0.0006107895000000001 0.1728 AML other m 2023-07-02T09:21:59.34
IV.MTRA.HNN. ML:2.1 0.00078824505 0.1408 AML other m 2023-07-02T09:21:58.82
IV.TERO.HNE. ML:1.5 0.0001180186 0.2304 AML other m 2023-07-02T09:22:01.55
IV.TERO.HNN. ML:1.8 0.0002227286 0.224 AML other m 2023-07-02T09:22:02.04
IV.FIAM.HNE. ML:1.6 0.00014145571 0.3712 AML other m 2023-07-02T09:22:02.24
IV.FIAM.HNN. ML:1.6 0.00013423545 0.672 AML other m 2023-07-02T09:22:00.88
IV.MF5.EHE. ML:1.5 0.00008045866 0.256 AML other m 2023-07-02T09:22:07.82
IV.MF5.EHN. ML:1.5 0.00008588522 0.16 AML other m 2023-07-02T09:22:08.33
IV.MOMA.HNE. ML:1.7 0.000129951565 1.2608 AML other m 2023-07-02T09:22:22.45
IV.MOMA.HNN. ML:1.8 0.0001660745 0.672 AML other m 2023-07-02T09:22:13.14
IV.MML1.HNE. ML:1.7 0.00010571712 0.5312 AML other m 2023-07-02T09:22:15.20
IV.MML1.HNN. ML:2.7 0.0010078402 1.8112 AML other m 2023-07-02T09:22:02.35
IV.MNTT.EHE. ML:1.8 0.00011431889000000001 0.2624 AML other m 2023-07-02T09:22:17.46
IV.MNTT.EHN. ML:1.7 0.000099375525 0.3008 AML other m 2023-07-02T09:22:15.85
IV.MURB.HNE. ML:2.0 0.00010347904499999999 0.736 AML other m 2023-07-02T09:22:07.95
IV.MURB.HNN. ML:1.9 0.000101705525 1.1712 AML other m 2023-07-02T09:22:08.32
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