Earthquake with magnitude of ML 0.8 on date 26-05-2023 and time 03:12:40 (Italy) in region 5 km S Borbona (RI)

A magnitude ML 0.8 earthquake occured in region: 5 km S Borbona (RI), on

  • 26-05-2023 01:12:40 (UTC)
  • 26-05-2023 03:12:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4640, 13.1410 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
Borbona RI 6 617 617
Cagnano Amiterno AQ 7 1369 1986
Micigliano RI 7 127 2113
Antrodoco RI 7 2588 4701
Posta RI 8 694 5395
Borgo Velino RI 9 972 6367
Montereale AQ 11 2581 8948
Barete AQ 12 737 9685
Castel Sant'Angelo RI 12 1308 10993
Pizzoli AQ 13 4326 15319
Scoppito AQ 14 3727 19046
Capitignano AQ 15 665 19711
Cittareale RI 17 482 20193
Cittaducale RI 18 6828 27021
Leonessa RI 18 2435 29456
Cantalice RI 19 2755 32211
Petrella Salto RI 20 1197 33408

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of L'Aquila (69753 inhabitants)
42 Km E of Terni (111501 inhabitants)
51 Km W of Teramo (54892 inhabitants)
62 Km NE of Guidonia Montecelio (88673 inhabitants)
62 Km NE of Tivoli (56533 inhabitants)
65 Km SE of Foligno (57155 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
83 Km NE of Roma (2864731 inhabitants)
85 Km E of Viterbo (67173 inhabitants)
85 Km W of Chieti (51815 inhabitants)
88 Km W of Pescara (121014 inhabitants)
91 Km NE of Velletri (53303 inhabitants)
94 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 0.8 2023-05-26
01:12:40
42.4642 13.1413 11 2023-05-26
01:30:20
Sala Sismica INGV-Roma 117731131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-26 01:12:40 ± 0.07
Latitude 42.4642 ± 0.0036
Longitude 13.1413 ± 0.0085
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117731131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 703
Semi-minor axis of confidence ellipse (meter) 200
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 264
Circular confidence region, given by single value of horizontal uncertainty (meter) 700.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 9
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.36962
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 117731131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-26 01:30:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIUL.HHZ. 2023-05-26T01:12:55.74 3.0 positive manual P -0.3 0
IV.NRCA.HHZ. 2023-05-26T01:12:54.28 0.6 undecidable manual S 357 41.0256 50 -0.14 47
IV.FIAM.HHZ. 2023-05-26T01:12:49.14 0.3 undecidable manual S 185 21.867 116 -0.13 73
IV.NRCA.HHZ. 2023-05-26T01:12:48.66 0.1 undecidable manual P 357 41.0256 50 -0.03 97
IV.LNSS.HNZ. 2023-05-26T01:12:47.86 0.1 undecidable manual S 332 17.4714 121 -0.07 100
IV.SMA1.EHZ. 2023-05-26T01:12:46.14 0.1 undecidable manual P 41 24.3534 50 0.02 100
IV.LNSS.HNZ. 2023-05-26T01:12:45.13 0.3 undecidable manual P 332 17.4714 121 0.19 73
IV.FIAM.HHZ. 2023-05-26T01:12:45.77 0.1 undecidable manual P 185 21.867 116 0.05 100
IV.RM33.EHZ. 2023-05-26T01:12:45.10 0.6 undecidable manual S 50 7.7811 143 -0.29 49
IV.RM33.EHZ. 2023-05-26T01:12:43.68 0.1 undecidable manual P 50 7.7811 143 0.2 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:1.4 0.000352 0.3 AML other m 2023-05-26T01:12:45.38
IV.RM33.EHN. ML:1.1 0.0001735 1.36 AML other m 2023-05-26T01:12:45.74
IV.SMA1.EHE. ML:0.4 0.000014845000000000001 0.8 AML other m 2023-05-26T01:12:47.51
IV.SMA1.EHN. ML:0.5 0.000021400000000000002 0.68 AML other m 2023-05-26T01:12:57.00
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