Earthquake with magnitude of ML 0.8 on date 22-10-2023 and time 05:26:44 (Italy) in region 1 km W Comunanza (AP)

A magnitude ML 0.8 earthquake occured in region: 1 km W Comunanza (AP), on

  • 22-10-2023 03:26:44 (UTC)
  • 22-10-2023 05:26:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9530, 13.3980 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
Comunanza AP 2 3166 3166
Amandola FM 5 3629 6795
Montefortino FM 5 1178 7973
Montefalcone Appennino FM 6 424 8397
Smerillo FM 7 365 8762
Force AP 8 1354 10116
Palmiano AP 8 196 10312
Montemonaco AP 8 604 10916
Monte San Martino MC 10 765 11681
Santa Vittoria in Matenano FM 11 1330 13011
Venarotta AP 11 2066 15077
Penna San Giovanni MC 12 1108 16185
Roccafluvione AP 12 2010 18195
Sarnano MC 12 3264 21459
Rotella AP 13 906 22365
Montegallo AP 13 523 22888
Montelparo FM 13 778 23666
Gualdo MC 14 815 24481
Bolognola MC 15 142 24623
Monteleone di Fermo FM 15 395 25018
Montedinove AP 16 488 25506
Servigliano FM 16 2336 27842
Sant'Angelo in Pontano MC 16 1436 29278
Monte Rinaldo FM 17 379 29657
Montalto delle Marche AP 18 2122 31779
Monsampietro Morico FM 18 659 32438
Ascoli Piceno AP 18 49407 81845
Castignano AP 18 2796 84641
Falerone FM 18 3337 87978
San Ginesio MC 19 3498 91476
Belmonte Piceno FM 19 646 92122
Ortezzano FM 19 774 92896
Montottone FM 20 979 93875

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NW of Teramo (54892 inhabitants)
57 Km E of Foligno (57155 inhabitants)
67 Km N of L'Aquila (69753 inhabitants)
75 Km S of Ancona (100861 inhabitants)
75 Km NE of Terni (111501 inhabitants)
78 Km NW of Montesilvano (53738 inhabitants)
84 Km E of Perugia (166134 inhabitants)
86 Km NW of Pescara (121014 inhabitants)
92 Km NW of Chieti (51815 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 2023-10-22
03:26:44
42.9528 13.3983 11 2023-10-22
03:36:38
Sala Sismica INGV-Roma 122278361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-22 03:26:44 ± 0.07
Latitude 42.9528 ± 0.0090
Longitude 13.3983 ± 0.0086
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 122278361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1188
Semi-minor axis of confidence ellipse (meter) 380
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 147
Circular confidence region, given by single value of horizontal uncertainty (meter) 1190.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 171
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.05666
Epicentral distance of station farthest from the epicenter (degree) 0.35074
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 122278361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-22 03:36:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MNTT.EHZ. 2023-10-22T03:26:52.66 0.3 undecidable manual S 53 20.0688 50 0.14 73
IV.MML1.EHZ. 2023-10-22T03:26:52.18 1.0 positive manual P 297 38.9277 50 0.09 24
IV.FDMO.HHZ. 2023-10-22T03:26:50.22 0.6 negative manual P 290 26.8509 50 -0.02 49
IV.MMO1.EHZ. 2023-10-22T03:26:49.52 0.3 undecidable manual S 224 8.2806 142 0.17 74
IV.NRCA.HHZ. 2023-10-22T03:26:49.75 0.6 undecidable manual P 240 26.6511 50 -0.45 45
IV.MNTT.EHZ. 2023-10-22T03:26:49.24 0.3 undecidable manual P 53 20.0688 50 0.05 74
IV.CSP1.EHZ. 2023-10-22T03:26:49.46 1.0 undecidable manual P 315 21.9669 50 -0.03 25
IV.MF5.EHZ. 2023-10-22T03:26:48.84 0.1 undecidable manual S 52 6.2937 150 -0.12 99
IV.GUMA.HHZ. 2023-10-22T03:26:48.30 1.0 positive manual P 337 13.1757 129 0.25 24
IV.MF5.EHZ. 2023-10-22T03:26:47.04 0.1 undecidable manual P 52 6.2937 150 -0.09 100
IV.MMO1.EHZ. 2023-10-22T03:26:47.44 0.1 undecidable manual P 224 8.2806 142 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.7 0.00003075 0.46 AML other m 2023-10-22T03:26:55.17
IV.NRCA.HHE. ML:0.9 0.0000459 1.34 AML other m 2023-10-22T03:26:56.15
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