Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 28-01-2023 and time 08:34:49 (UTC) in region 5 km NW Campotosto (AQ)

A magnitude ML 0.9 earthquake occured in region: 5 km NW Campotosto (AQ), on

  • 28-01-2023 08:34:49 (UTC)
  • 28-01-2023 09:34:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.5830, 13.3220 at 13 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
Campotosto AQ 5 542 542
Amatrice RI 6 2657 3199
Capitignano AQ 7 665 3864
Montereale AQ 9 2581 6445
Crognaleto TE 14 1297 7742
Cittareale RI 14 482 8224
Accumoli RI 14 667 8891
Barete AQ 15 737 9628
Cagnano Amiterno AQ 16 1369 10997
Cortino TE 16 656 11653
Pizzoli AQ 16 4326 15979
Borbona RI 17 617 16596
Fano Adriano TE 18 296 16892
Posta RI 20 694 17586

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km N of L'Aquila (69753 inhabitants)
33 Km W of Teramo (54892 inhabitants)
55 Km E of Terni (111501 inhabitants)
65 Km SE of Foligno (57155 inhabitants)
68 Km W of Montesilvano (53738 inhabitants)
74 Km W of Chieti (51815 inhabitants)
74 Km W of Pescara (121014 inhabitants)
81 Km NE of Tivoli (56533 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km SE of Perugia (166134 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 2023-01-28
08:34:49		 42.5828 13.3215 13 2023-01-28
08:44:18		 Sala Sismica INGV-Roma 113849291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-28 08:34:49 ± 0.08
Latitude 42.5828 ± 0.0054
Longitude 13.3215 ± 0.0061
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 113849291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 577
Semi-minor axis of confidence ellipse (meter) 242
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 207
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.52071
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 113849291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-28 08:44:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2023-01-28T08:35:00.50 0.6 undecidable manual S 329 32.5452 96 0.03 48
IV.CESI.HHZ. 2023-01-28T08:34:59.72 1.0 positive manual P 324 57.7977 93 0.08 23
IV.MF5.EHZ. 2023-01-28T08:34:58.32 0.1 undecidable manual P 14 46.3203 94 0.45 86
IV.GIGS.HHZ. 2023-01-28T08:34:58.38 0.6 undecidable manual S 125 25.0527 100 -0.12 48
IV.LNSS.HHZ. 2023-01-28T08:34:57.90 0.6 undecidable manual S 276 23.0547 101 -0.07 48
IV.TERO.HHZ. 2023-01-28T08:34:57.90 0.6 undecidable manual S 79 23.4543 101 -0.18 48
IV.MTRA.HNZ. 2023-01-28T08:34:57.04 0.6 undecidable manual S 18 20.2686 105 -0.2 47
IV.NRCA.HHZ. 2023-01-28T08:34:55.62 0.1 undecidable manual P 329 32.5452 96 -0.13 94
IV.TERO.HHZ. 2023-01-28T08:34:54.39 0.6 undecidable manual P 79 23.4543 101 0.02 49
IV.CAMP.HHZ. 2023-01-28T08:34:54.54 0.6 undecidable manual S 126 8.88 137 -0.06 50
IV.GIGS.HHZ. 2023-01-28T08:34:54.56 1.0 undecidable manual P 125 25.0527 100 -0.05 24
IV.SMA1.EHZ. 2023-01-28T08:34:54.24 0.6 undecidable manual S 12 5.3946 152 0.18 49
IV.LNSS.HHZ. 2023-01-28T08:34:54.27 0.1 positive manual P 276 23.0547 101 -0.04 98
IV.MTRA.HNZ. 2023-01-28T08:34:53.61 0.1 undecidable manual P 18 20.2686 105 -0.27 94
IV.SMA1.EHZ. 2023-01-28T08:34:52.13 0.1 undecidable manual P 12 5.3946 152 0.08 100
IV.CAMP.HHZ. 2023-01-28T08:34:52.54 0.3 undecidable manual P 126 8.88 137 0.18 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.2 0.00008515000000000001 0.68 AML other m 2023-01-28T08:34:57.95
IV.CAMP.HHN. ML:0.9 0.0000972 0.16 AML other m 2023-01-28T08:34:54.67
IV.LNSS.HHE. ML:1.2 0.0000837 0.52 AML other m 2023-01-28T08:34:57.71
IV.TERO.HHE. ML:0.8 0.000035669615 0.064 AML other m 2023-01-28T08:34:58.70
IV.TERO.HHN. ML:0.9 0.00004896726 0.0832 AML other m 2023-01-28T08:34:58.18
IV.GIGS.HHE. ML:0.6 0.000017866635 1.7216 AML other m 2023-01-28T08:34:58.90
IV.GIGS.HHN. ML:0.6 0.000019371485 2.5024 AML other m 2023-01-28T08:34:59.22
IV.NRCA.HHE. ML:0.9 0.0000340299545 0.064 AML other m 2023-01-28T08:35:01.68
IV.NRCA.HHN. ML:1.0 0.000042405929999999995 0.1216 AML other m 2023-01-28T08:35:00.95
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