Earthquake with magnitude of ML 2.0 on date 29-07-2021 and time 15:05:20 (UTC) in region 1 km W Roccafluvione (AP)

A magnitude ML 2.0 earthquake occured in region: 1 km W Roccafluvione (AP), on

  • 29-07-2021 15:05:20 (UTC)
  • 29-07-2021 17:05:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.866, 13.459 at 20 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Roccafluvione AP 2 2010 2010
Venarotta AP 3 2066 4076
Palmiano AP 4 196 4272
Ascoli Piceno AP 10 49407 53679
Montegallo AP 11 523 54202
Comunanza AP 11 3166 57368
Force AP 11 1354 58722
Montemonaco AP 11 604 59326
Acquasanta Terme AP 11 2916 62242
Montefortino FM 13 1178 63420
Rotella AP 13 906 64326
Montefalcone Appennino FM 14 424 64750
Valle Castellana TE 15 977 65727
Folignano AP 15 9241 74968
Amandola FM 15 3629 78597
Smerillo FM 16 365 78962
Castignano AP 16 2796 81758
Montedinove AP 16 488 82246
Arquata del Tronto AP 17 1178 83424
Appignano del Tronto AP 17 1785 85209
Santa Vittoria in Matenano FM 18 1330 86539
Montelparo FM 18 778 87317
Montalto delle Marche AP 18 2122 89439
Monte San Martino MC 19 765 90204
Maltignano AP 19 2401 92605
Civitella del Tronto TE 20 5116 97721

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km NW of Teramo (54892 inhabitants)
57 Km N of L'Aquila (69753 inhabitants)
62 Km E of Foligno (57155 inhabitants)
69 Km NW of Montesilvano (53738 inhabitants)
74 Km E of Terni (111501 inhabitants)
76 Km NW of Pescara (121014 inhabitants)
82 Km NW of Chieti (51815 inhabitants)
84 Km S of Ancona (100861 inhabitants)
91 Km E of Perugia (166134 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event *

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019 *

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire *

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.0 2021-07-29
15:05:20
42.8663 13.4588 20 2021-12-29
11:12:30
Bollettino Sismico Italiano INGV 95382681
Reviewed
Rev100
ML 2.1 2021-07-29
15:05:20
42.8647 13.4587 20 2021-07-29
15:18:38
Sala Sismica INGV-Roma 93360351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-29 15:05:20 ± 0.1
Latitude 42.8663 ± 0.0027
Longitude 13.4588 ± 0.0049
Depth (km) 20 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95382681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 363
Semi-minor axis of confidence ellipse (meter) 266
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 266
Circular confidence region, given by single value of horizontal uncertainty (meter) 360
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 64
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.67809
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 93360351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-29 15:18:38

ML:2

Field Value
Value 2
Uncertainty 0.2
Num. used stations 25
Type of magnitude ML
Reference to an origin 95382681
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-09-13 11:37:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PIPA.HHZ. 2021-07-29T15:06:52.43 3.0 undecidable manual Sg 7.18 0
NI.VINO.HHZ. 2021-07-29T15:06:49.81 3.0 undecidable manual Sg 7.06 0
CR.STON.BHZ. 2021-07-29T15:06:45.90 3.0 undecidable manual Sg 16.48 0
IV.LADO.EHZ. 2021-07-29T15:06:45.16 3.0 undecidable manual Sn -5.78 0
IV.SPS2.HHZ. 2021-07-29T15:06:35.39 3.0 undecidable manual Sn -7.9 0
IV.HVIT.HHZ. 2021-07-29T15:06:34.69 3.0 positive manual Pg 14.31 0
IV.MNTV.EHZ. 2021-07-29T15:06:31.57 3.0 undecidable manual Sn 2.66 0
MN.BNI.HHZ. 2021-07-29T15:06:30.79 3.0 undecidable manual Pg 10.6 0
IV.IFIL.HHZ. 2021-07-29T15:06:29.59 3.0 undecidable manual Sn -9.99 0
IV.PZUN.HHZ. 2021-07-29T15:06:24.77 3.0 undecidable manual Sg 12.7 0
IV.CMPR.HHZ. 2021-07-29T15:06:14.62 3.0 undecidable manual Sg 2.73 0
IX.COL3.HHZ.02 2021-07-29T15:06:12.33 3.0 undecidable manual Sg 7.03 0
IV.MFNL.HHZ. 2021-07-29T15:06:11.78 3.0 positive manual Pg 3.37 0
IV.IFIL.HHZ. 2021-07-29T15:06:08.73 3.0 negative manual Pg 9.21 0
CR.STON.BHZ. 2021-07-29T15:06:06.04 3.0 undecidable manual Pg 15.33 0
IV.SPS2.HHZ. 2021-07-29T15:06:06.58 3.0 negative manual Pg 8.08 0
IX.MNT3.EHZ.02 2021-07-29T15:06:05.63 3.0 undecidable manual Sg 6.84 0
GU.RNCA.HHZ. 2021-07-29T15:06:03.30 3.0 positive manual Pg 6.33 0
IV.CET2.HHZ. 2021-07-29T15:06:01.85 3.0 undecidable manual Pg 8.34 0
IV.CDRU.HNZ. 2021-07-29T15:06:00.50 3.0 undecidable manual Sn -8.13 0
IV.LADO.EHZ. 2021-07-29T15:05:57.65 3.0 undecidable manual Pn -5.15 0
IV.CAVE.HHZ. 2021-07-29T15:05:56.65 3.0 negative manual Pg 10.56 0
IV.MCIV.CHZ. 2021-07-29T15:05:44.58 3.0 undecidable manual Sg 4.27 0
OT.OT14.EHZ. 2021-07-29T15:05:42.17 3.0 undecidable manual Pg 8.73 0
IV.FERS.EHZ. 2021-07-29T15:05:42.04 3.0 positive manual Pn -1.83 0
IV.ASSB.HHZ. 2021-07-29T15:05:41.29 0.6 undecidable manual S 287 0.6115 99 0.17 45
IV.CDRU.HNZ. 2021-07-29T15:05:40.01 3.0 undecidable manual Pg 0.98 0
IV.EL6.EHZ. 2021-07-29T15:05:39.18 0.3 undecidable manual S 331 0.5315 101 0.39 65
IV.PII.HHZ. 2021-07-29T15:05:38.80 3.0 positive manual Pn 0.26 0
IV.MML1.EHZ. 2021-07-29T15:05:36.10 0.3 undecidable manual S 305 0.4335 104 0.14 70
IV.CESI.HHZ. 2021-07-29T15:05:36.21 0.3 undecidable manual S 289 0.4281 104 0.39 66
IV.SFI.EHZ. 2021-07-29T15:05:36.79 3.0 undecidable manual Pg 5.93 0
IV.GAVE.HNZ. 2021-07-29T15:05:36.78 0.3 undecidable manual S 247 0.4488 103 0.37 67
IV.ATCC.EHZ. 2021-07-29T15:05:33.52 0.1 undecidable manual P 298 0.6781 98 0.04 90
IV.FDMO.HHZ. 2021-07-29T15:05:32.51 0.6 undecidable manual S 302 0.3211 110 -0.25 47
IV.ASSB.HHZ. 2021-07-29T15:05:32.23 0.1 undecidable manual P 287 0.6115 99 -0.12 90
IV.NRCA.HHZ. 2021-07-29T15:05:31.16 0.3 undecidable manual S 263 0.2545 117 0.2 72
IV.T1299.HNZ. 2021-07-29T15:05:31.71 0.6 undecidable manual S 209 0.2653 115 0.45 46
IV.TERO.HHZ. 2021-07-29T15:05:31.26 0.3 undecidable manual S 156 0.2653 115 0 74
IV.CSP1.EHZ. 2021-07-29T15:05:31.91 0.3 undecidable manual S 321 0.2923 113 -0.06 73
IV.EL6.EHZ. 2021-07-29T15:05:30.73 0.1 undecidable manual P 331 0.5315 101 -0.27 89
IV.SMA1.EHZ. 2021-07-29T15:05:30.96 0.3 undecidable manual S 201 0.2527 117 0.05 74
IV.MNTT.EHZ. 2021-07-29T15:05:30.39 0.6 undecidable manual S 27 0.2194 121 0.33 46
IV.SAP2.EHN. 2021-07-29T15:05:30.74 0.3 undecidable manual S 349 0.2347 119 0.3 70
IV.MC2.EHZ. 2021-07-29T15:05:29.64 0.3 undecidable manual S 283 0.2023 124 0.01 75
IV.OFFI.HHZ. 2021-07-29T15:05:29.51 0.6 undecidable manual S 67 0.1799 128 0.43 46
IV.MML1.EHZ. 2021-07-29T15:05:29.25 0.1 undecidable manual P 305 0.4335 104 -0.12 94
IV.CESI.HHZ. 2021-07-29T15:05:29.25 0.1 undecidable manual P 289 0.4281 104 -0.04 95
IV.GAVE.HNZ. 2021-07-29T15:05:29.67 0.1 undecidable manual P 247 0.4488 103 0.04 95
IV.MRLC.HHZ. 2021-07-29T15:05:28.10 3.0 undecidable manual Pn -9.49 0
IV.FDMO.HHZ. 2021-07-29T15:05:27.30 0.1 undecidable manual P 302 0.3211 110 -0.22 94
IV.MF5.EHZ. 2021-07-29T15:05:27.47 0.3 undecidable manual S 0 0.1214 141 -0.37 71
IV.MTRA.HNZ. 2021-07-29T15:05:27.46 0.3 undecidable manual S 203 0.1187 141 -0.33 71
IV.TERO.HHZ. 2021-07-29T15:05:26.56 0.1 undecidable manual P 156 0.2653 115 -0.09 97
IV.CSP1.EHZ. 2021-07-29T15:05:26.87 0.1 undecidable manual P 321 0.2923 113 -0.2 95
IV.NRCA.HHZ. 2021-07-29T15:05:26.38 0.1 undecidable manual P 263 0.2545 117 -0.1 97
IV.SMA1.EHZ. 2021-07-29T15:05:26.48 0.1 undecidable manual P 201 0.2527 117 0.03 99
IV.T1299.HNZ. 2021-07-29T15:05:26.74 0.6 undecidable manual P 209 0.2653 115 0.08 49
IV.MNTT.EHZ. 2021-07-29T15:05:25.97 0.1 undecidable manual P 27 0.2194 121 0.01 100
IV.SAP2.EHN. 2021-07-29T15:05:25.97 0.1 undecidable manual P 349 0.2347 119 -0.21 96
IV.MC2.EHZ. 2021-07-29T15:05:25.70 0.1 undecidable manual P 283 0.2023 124 -0.02 100
IV.OFFI.HHZ. 2021-07-29T15:05:25.73 0.1 undecidable manual P 67 0.1799 128 0.33 94
IV.MF5.EHZ. 2021-07-29T15:05:24.46 0.1 undecidable manual P 0 0.1214 141 -0.22 98
IV.MTRA.HNZ. 2021-07-29T15:05:24.50 0.1 undecidable manual P 203 0.1187 141 -0.15 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FAGN.HHN. ML:0 0.0006105 0.26 AML other m 2021-07-29T15:05:16.76
IV.FAGN.HHE. ML:0 0.0010415 0.24 AML other m 2021-07-29T15:05:18.81
IV.MTRA.HNN. ML:0 0.001063 0.1 AML other m 2021-07-29T15:05:27.61
IV.MTRA.EHN. ML:0 0.001045 0.1 AML other m 2021-07-29T15:05:27.61
IV.MF5.EHN. ML:0 0.000611 0.26 AML other m 2021-07-29T15:05:27.86
IV.MF5.EHE. ML:0 0.000268 0.22 AML other m 2021-07-29T15:05:27.82
IV.MTRA.HNE. ML:0 0.001115 0.52 AML other m 2021-07-29T15:05:27.83
IV.MTRA.EHE. ML:0 0.0011 0.52 AML other m 2021-07-29T15:05:27.83
IV.VCEL.EHN. ML:0 0.000238 0.06 AML other m 2021-07-29T15:05:28.85
IV.VCEL.EHE. ML:0 0.000257 1.94 AML other m 2021-07-29T15:05:28.97
IV.OFFI.HHE. ML:0 0.000489 0.56 AML other m 2021-07-29T15:05:30.86
IV.MNTT.EHN. ML:0 0.0005325 0.18 AML other m 2021-07-29T15:05:31.06
IV.SMA1.EHN. ML:0 0.0004 0.14 AML other m 2021-07-29T15:05:31.22
IV.SMA1.EHE. ML:0 0.0004215 0.3 AML other m 2021-07-29T15:05:31.23
IV.MNTT.EHE. ML:0 0.00116 0.48 AML other m 2021-07-29T15:05:31.63
IV.OFFI.HHN. ML:0 0.0004895 0.46 AML other m 2021-07-29T15:05:31.44
IV.NRCA.HHE. ML:0 0.000387 0.42 AML other m 2021-07-29T15:05:32.31
IV.NRCA.HNE. ML:1.9 0.00035737945 0.1408 AML other m 2021-07-29T15:05:32.11
IV.NRCA.HHN. ML:0 0.000522 0.1 AML other m 2021-07-29T15:05:32.67
IV.CSP1.EHN. ML:2.2 0.0005585 0.72 AML other m 2021-07-29T15:05:32.27
IV.CSP1.EHE. ML:2.2 0.0005565 1.32 AML other m 2021-07-29T15:05:32.78
IV.FDMO.HHE. ML:1.8 0.0001945 0.14 AML other m 2021-07-29T15:05:32.83
IV.FDMO.HHN. ML:1.8 0.000242 0.2 AML other m 2021-07-29T15:05:32.89
IV.CESI.HHN. ML:1.9 0.000222 0.18 AML other m 2021-07-29T15:05:36.65
IV.CESI.HHE. ML:1.8 0.000154 0.34 AML other m 2021-07-29T15:05:36.55
IV.MML1.EHE. ML:1.5 7.945E-5 1.02 AML other m 2021-07-29T15:05:36.73
IV.MML1.EHN. ML:1.8 0.0001775 0.26 AML other m 2021-07-29T15:05:36.75
IV.GAVE.EHN. ML:2.1 0.000305 0.26 AML other m 2021-07-29T15:05:38.19
IV.GAVE.EHE. ML:2.1 0.000306 0.14 AML other m 2021-07-29T15:05:38.24
IV.ASSB.HHE. ML:1.4 4.1E-5 1.38 AML other m 2021-07-29T15:05:43.00
IV.ASSB.HHN. ML:1.4 4.285E-5 0.2 AML other m 2021-07-29T15:05:44.37
IV.VIVA.HHE. ML:0 0.002105 0.16 AML other m 2021-07-29T15:05:45.20
IV.VIVA.HHN. ML:0 0.0018 0.86 AML other m 2021-07-29T15:05:46.20
IX.COL3.HHE.02 ML:3.1 0.0001615 1.36 AML other m 2021-07-29T15:05:50.70
IX.COL3.HHN.02 ML:3.3 0.0002975 0.08 AML other m 2021-07-29T15:05:54.06
IV.ATCC.EHE. ML:1.4 3.545E-5 1.42 AML other m 2021-07-29T15:05:56.88
IV.ATCC.EHN. ML:1.4 3.275E-5 1.62 AML other m 2021-07-29T15:05:58.13
IX.MNT3.EHE.02 ML:2.9 0.0001465 0.6 AML other m 2021-07-29T15:06:05.59
IX.MNT3.EHN.02 ML:3.1 0.0001995 0.26 AML other m 2021-07-29T15:06:09.22
IV.IFIL.HHN. ML:4 0.0002965 0.06 AML other m 2021-07-29T15:06:17.46
IV.IFIL.HHE. ML:4.4 0.0007485 0.34 AML other m 2021-07-29T15:06:17.61
IV.LADO.EHE. ML:3 2.87E-5 0.5 AML other m 2021-07-29T15:06:24.26
IV.LADO.EHN. ML:2.8 1.835E-5 1.56 AML other m 2021-07-29T15:06:39.15
IV.SPS2.HHE. ML:3 3.57E-5 0.08 AML other m 2021-07-29T15:07:04.09
IV.SPS2.HHN. ML:2.7 2.055E-5 0.1 AML other m 2021-07-29T15:07:04.13
IV.MFNL.HHE. ML:3.8 0.0001205 0.42 AML other m 2021-07-29T15:07:04.15
IV.MFNL.HHN. ML:3.6 8.02E-5 1 AML other m 2021-07-29T15:07:04.54
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download