Earthquake with magnitude of ML 1.1 on date 14-08-2023 and time 01:56:51 (Italy) in region 1 km NW Folignano (AP)

A magnitude ML 1.1 earthquake occured in region: 1 km NW Folignano (AP), on

  • 13-08-2023 23:56:51 (UTC)
  • 14-08-2023 01:56:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8260, 13.6260 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
Folignano AP 1 9241 9241
Ascoli Piceno AP 5 49407 58648
Maltignano AP 5 2401 61049
Civitella del Tronto TE 7 5116 66165
Sant'Egidio alla Vibrata TE 8 9811 75976
Castel di Lama AP 9 8634 84610
Appignano del Tronto AP 9 1785 86395
Ancarano TE 10 1857 88252
Colli del Tronto AP 12 3668 91920
Castorano AP 12 2380 94300
Campli TE 12 7209 101509
Venarotta AP 12 2066 103575
Torano Nuovo TE 12 1611 105186
Castignano AP 13 2796 107982
Roccafluvione AP 13 2010 109992
Offida AP 13 5058 115050
Spinetoli AP 14 7215 122265
Valle Castellana TE 14 977 123242
Sant'Omero TE 15 5243 128485
Rotella AP 15 906 129391
Monsampolo del Tronto AP 16 4611 134002
Nereto TE 16 5242 139244
Palmiano AP 16 196 139440
Controguerra TE 16 2436 141876
Montedinove AP 17 488 142364
Corropoli TE 17 5045 147409
Bellante TE 17 7152 154561
Rocca Santa Maria TE 17 537 155098
Montalto delle Marche AP 18 2122 157220
Cossignano AP 18 978 158198
Acquasanta Terme AP 19 2916 161114
Force AP 19 1354 162468
Torricella Sicura TE 19 2641 165109
Teramo TE 20 54892 220001

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of Teramo (54892 inhabitants)
55 Km NW of Montesilvano (53738 inhabitants)
56 Km NE of L'Aquila (69753 inhabitants)
63 Km NW of Pescara (121014 inhabitants)
69 Km NW of Chieti (51815 inhabitants)
76 Km E of Foligno (57155 inhabitants)
85 Km E of Terni (111501 inhabitants)
89 Km S of Ancona (100861 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 2023-08-13
23:56:51
42.826 13.6258 11 2023-08-14
00:01:15
Sala Sismica INGV-Roma 120102451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-13 23:56:51 ± 0.15
Latitude 42.8260 ± 0.0072
Longitude 13.6258 ± 0.0147
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120102451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1190
Semi-minor axis of confidence ellipse (meter) 820
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 262
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) 100
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.44696
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 120102451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-14 00:01:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SMA1.EHZ. 2023-08-13T23:57:02.96 0.6 undecidable manual S 228 32.1456 50 0.58 45
IV.MNTT.EHZ. 2023-08-13T23:57:01.81 0.6 undecidable manual S 355 26.2515 50 0.98 38
IV.MF5.EHZ. 2023-08-13T23:57:00.35 0.6 undecidable manual S 323 22.4553 50 0.55 46
IV.MMO1.EHZ. 2023-08-13T23:57:00.99 0.6 undecidable manual S 289 25.6521 50 0.34 48
IV.TERO.HHZ. 2023-08-13T23:57:00.47 0.6 undecidable manual S 185 22.6551 50 0.62 45
IV.CSP1.EHZ. 2023-08-13T23:56:59.10 0.6 negative manual P 311 45.1215 50 -0.57 44
IV.FDMO.HHZ. 2023-08-13T23:56:59.78 0.6 negative manual P 298 49.617 50 -0.58 43
IV.NRCA.HHZ. 2023-08-13T23:56:58.86 0.6 positive manual P 271 41.625 50 -0.27 48
IV.CIMA.HNZ. 2023-08-13T23:56:57.38 3.0 positive manual P -0.73 0
IV.SMA1.EHZ. 2023-08-13T23:56:57.55 0.1 positive manual P 228 32.1456 50 -0.12 100
IV.GUMA.HHZ. 2023-08-13T23:56:57.87 0.6 positive manual P 318 35.3424 50 -0.29 48
IV.MMO1.EHZ. 2023-08-13T23:56:56.37 0.3 negative manual P 289 25.6521 50 -0.3 73
IV.TERO.HHZ. 2023-08-13T23:56:56.09 0.3 positive manual P 185 22.6551 50 -0.11 76
IV.MNTT.EHZ. 2023-08-13T23:56:56.93 0.1 positive manual P 355 26.2515 50 0.16 100
IV.TRTR.HHZ. 2023-08-13T23:56:56.23 0.3 negative manual P 95 23.5542 50 -0.12 76
IV.MF5.EHZ. 2023-08-13T23:56:55.95 0.1 negative manual P 323 22.4553 50 -0.22 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MF5.EHN. ML:0.8 0.000039755 0.86 AML other m 2023-08-13T23:57:00.45
IV.TERO.HHN. ML:1.3 0.00013350000000000002 0.54 AML other m 2023-08-13T23:57:00.72
IV.TERO.HHE. ML:1.3 0.000135 0.56 AML other m 2023-08-13T23:57:00.92
IV.MF5.EHE. ML:0.8 0.00003759999999999999 1.18 AML other m 2023-08-13T23:57:01.33
IV.MMO1.EHE. ML:0.9 0.000048049999999999996 1.38 AML other m 2023-08-13T23:57:02.21
IV.MMO1.EHN. ML:1.1 0.0000696 0.34 AML other m 2023-08-13T23:57:02.25
IV.MNTT.EHE. ML:1.5 0.000191 0.3 AML other m 2023-08-13T23:57:03.02
IV.SMA1.EHE. ML:1.3 0.0000885 0.1 AML other m 2023-08-13T23:57:03.55
IV.SMA1.EHN. ML:1.3 0.00009195 0.46 AML other m 2023-08-13T23:57:03.56
IV.MNTT.EHN. ML:1.6 0.0002125 1.82 AML other m 2023-08-13T23:57:03.96
IV.NRCA.HHE. ML:1.2 0.0000498 0.08 AML other m 2023-08-13T23:57:05.95
IV.NRCA.HHN. ML:1.3 0.0000627 1.14 AML other m 2023-08-13T23:57:06.72
IV.FDMO.HHE. ML:0.8 0.00001695 0.22 AML other m 2023-08-13T23:57:07.60
IV.FDMO.HHN. ML:0.8 0.000014499999999999998 1.28 AML other m 2023-08-13T23:57:08.10
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