Earthquake with magnitude of ML 1.1 on date 23-07-2022 and time 09:04:57 (Italy) in region 8 km W Montegallo (AP)

A magnitude ML 1.1 earthquake occured in region: 8 km W Montegallo (AP), on

  • 23-07-2022 07:04:57 (UTC)
  • 23-07-2022 09:04:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8660, 13.2460 at 6 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
Montegallo AP 8 523 523
Montemonaco AP 8 604 1127
Castelsantangelo sul Nera MC 8 281 1408
Arquata del Tronto AP 11 1178 2586
Montefortino FM 12 1178 3764
Ussita MC 12 444 4208
Bolognola MC 14 142 4350
Visso MC 15 1107 5457
Norcia PG 15 4957 10414
Amandola FM 16 3629 14043
Preci PG 17 724 14767
Comunanza AP 17 3166 17933
Acquasanta Terme AP 17 2916 20849
Palmiano AP 18 196 21045
Roccafluvione AP 19 2010 23055
Accumoli RI 19 667 23722
Acquacanina MC 19 121 23843
Sarnano MC 19 3264 27107

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km NW of Teramo (54892 inhabitants)
45 Km E of Foligno (57155 inhabitants)
59 Km N of L'Aquila (69753 inhabitants)
60 Km NE of Terni (111501 inhabitants)
75 Km E of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
86 Km S of Ancona (100861 inhabitants)
91 Km W of Pescara (121014 inhabitants)
95 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 1.1 2022-07-23
07:04:57
42.8665 13.2462 6 2022-07-23
07:13:32
Sala Sismica INGV-Roma 107589711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-07-23 07:04:57 ± 0.32
Latitude 42.8665 ± 0.0063
Longitude 13.2462 ± 0.0074
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 107589711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 604
Semi-minor axis of confidence ellipse (meter) 515
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 336
Circular confidence region, given by single value of horizontal uncertainty (meter) 600.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 187
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.01979
Epicentral distance of station farthest from the epicenter (degree) 0.20594
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 107589711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-07-23 07:13:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2022-07-23T07:05:05.40 0.6 undecidable manual S 326 22.8549 105 0.13 48
IV.FDMO.HHZ. 2022-07-23T07:05:01.58 0.6 undecidable manual P 326 22.8549 105 -0.23 47
IV.NRCA.HHZ. 2022-07-23T07:05:01.49 0.6 undecidable manual S 251 11.2776 118 -0.03 50
IV.NRCA.HHZ. 2022-07-23T07:04:59.71 0.1 undecidable manual P 251 11.2776 118 0.07 100
7F.SIB2.EHE. 2022-07-23T07:04:58.81 0.3 undecidable manual P 60 5.3946 138 0.12 75
IV.MC2.EHZ. 2022-07-23T07:04:58.88 0.3 negative manual P 317 6.7932 131 -0.01 76
7F.SIB3.EHE. 2022-07-23T07:04:58.19 0.6 undecidable manual P 64 2.1978 160 -0.16 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.1 0.00019700000000000002 0.62 AML other m 2022-07-23T07:05:02.42
IV.NRCA.HHN. ML:1.1 0.0001815 0.76 AML other m 2022-07-23T07:05:02.83
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