Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 22-10-2019 and time 00:14:47 (Italy) in region 2 km N Folignano (AP)

A magnitude ML 1.2 earthquake occured in region: 2 km N Folignano (AP), on

  • 21-10-2019 22:14:47 (UTC)
  • 22-10-2019 00:14:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8360, 13.6380 at 24 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
Folignano AP 2 9241 9241
Maltignano AP 4 2401 11642
Ascoli Piceno AP 5 49407 61049
Sant'Egidio alla Vibrata TE 7 9811 70860
Castel di Lama AP 7 8634 79494
Civitella del Tronto TE 7 5116 84610
Appignano del Tronto AP 8 1785 86395
Ancarano TE 9 1857 88252
Colli del Tronto AP 10 3668 91920
Castorano AP 10 2380 94300
Castignano AP 12 2796 97096
Torano Nuovo TE 12 1611 98707
Offida AP 12 5058 103765
Spinetoli AP 13 7215 110980
Campli TE 13 7209 118189
Venarotta AP 13 2066 120255
Roccafluvione AP 14 2010 122265
Monsampolo del Tronto AP 14 4611 126876
Sant'Omero TE 15 5243 132119
Rotella AP 15 906 133025
Nereto TE 15 5242 138267
Controguerra TE 15 2436 140703
Montedinove AP 16 488 141191
Valle Castellana TE 16 977 142168
Corropoli TE 16 5045 147213
Palmiano AP 16 196 147409
Bellante TE 17 7152 154561
Montalto delle Marche AP 17 2122 156683
Cossignano AP 17 978 157661
Force AP 19 1354 159015
Monteprandone AP 19 12655 171670
Rocca Santa Maria TE 19 537 172207
Acquaviva Picena AP 19 3831 176038
Colonnella TE 19 3734 179772
Torricella Sicura TE 20 2641 182413

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km N of Teramo (54892 inhabitants)
55 Km NW of Montesilvano (53738 inhabitants)
57 Km NE of L'Aquila (69753 inhabitants)
63 Km NW of Pescara (121014 inhabitants)
69 Km NW of Chieti (51815 inhabitants)
77 Km E of Foligno (57155 inhabitants)
87 Km E of Terni (111501 inhabitants)
87 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 1.2 2019-10-21
22:14:47		 42.8362 13.6383 24 2019-10-21
22:25:24		 Sala Sismica INGV-Roma 73381041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-21 22:14:47 ± 0.15
Latitude 42.8362 ± 0.0054
Longitude 13.6383 ± 0.0061
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73381041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 541
Semi-minor axis of confidence ellipse (meter) 316
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 149
Circular confidence region, given by single value of horizontal uncertainty (meter) 540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
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) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.10432
Epicentral distance of station farthest from the epicenter (degree) 0.38581
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:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 73381041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-21 22:25:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIGS.HHZ. 2019-10-21T22:15:01.91 0.6 undecidable manual S 187 42.8238 112 0.07 48
IV.SMA1.EHZ. 2019-10-21T22:15:00.05 0.6 undecidable manual S 227 33.6441 118 0.44 45
IV.MMO1.EHZ. 2019-10-21T22:14:57.93 0.3 undecidable manual S 286 26.2515 126 -0.02 75
IV.MF5.EHZ. 2019-10-21T22:14:57.28 0.6 undecidable manual S 319 22.2555 131 0.18 49
IV.TERO.HHZ. 2019-10-21T22:14:57.45 0.6 undecidable manual S 187 23.8539 129 0.03 50
IV.MTRA.EHZ. 2019-10-21T22:14:56.96 0.3 undecidable manual S 246 21.5673 132 -0.01 76
IV.OFFI.HHZ. 2019-10-21T22:14:55.33 0.6 undecidable manual S 19 11.5773 151 0.03 52
IV.GIGS.HHZ. 2019-10-21T22:14:55.46 0.1 undecidable manual P 187 42.8238 112 -0.22 94
IV.SMA1.EHZ. 2019-10-21T22:14:54.47 0.3 undecidable manual P 227 33.6441 118 0.07 73
IV.TERO.HHZ. 2019-10-21T22:14:53.06 0.1 undecidable manual P 187 23.8539 129 -0.08 100
IV.MMO1.EHZ. 2019-10-21T22:14:53.27 0.1 undecidable manual P 286 26.2515 126 -0.17 97
IV.MNTT.EHZ. 2019-10-21T22:14:53.68 0.1 undecidable manual P 352 25.2525 127 0.36 94
IV.TRTR.HHZ. 2019-10-21T22:14:53.13 0.1 undecidable manual P 98 22.6551 131 0.14 99
IV.MF5.EHZ. 2019-10-21T22:14:52.89 0.1 undecidable manual P 319 22.2555 131 -0.06 100
IV.MTRA.EHZ. 2019-10-21T22:14:52.80 0.1 undecidable manual P 246 21.5673 132 -0.08 100
IV.OFFI.HHZ. 2019-10-21T22:14:51.68 0.1 undecidable manual P 19 11.5773 151 -0.23 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HHN. ML:1.4 0.0001064 0.34 AML other m 2019-10-21T22:14:57.78
IV.TERO.HHE. ML:1.3 0.0000902 1.44 AML other m 2019-10-21T22:14:57.78
IV.MTRA.EHE. ML:1.4 0.00012568335 0.128 AML other m 2019-10-21T22:14:57.29
IV.MTRA.EHN. ML:1.2 0.000086261065 0.1152 AML other m 2019-10-21T22:14:57.36
IV.MTRA.HNE. ML:1.4 0.0001323662085 0.128 AML other m 2019-10-21T22:14:57.30
IV.MF5.EHE. ML:1.1 0.000058774305 0.3584 AML other m 2019-10-21T22:14:57.63
IV.MF5.EHN. ML:1.2 0.000068319565 0.4096 AML other m 2019-10-21T22:14:57.40
IV.MNTT.EHN. ML:1.2 0.000076610975 0.3584 AML other m 2019-10-21T22:15:01.07
IV.SMA1.EHE. ML:1.1 0.00003858012500000001 0.1024 AML other m 2019-10-21T22:15:00.64
IV.SMA1.EHN. ML:1.0 0.000037052285 0.1024 AML other m 2019-10-21T22:15:00.60
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