Earthquake with magnitude of ML 1.1 on date 29-10-2020 and time 14:18:36 (UTC) in region 5 km W Montemonaco (AP)

A magnitude ML 1.1 earthquake occured in region: 5 km W Montemonaco (AP), on

  • 29-10-2020 14:18:36 (UTC)
  • 29-10-2020 15:18:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9, 13.27 at 25 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
Montemonaco AP 5 604 604
Montefortino FM 8 1178 1782
Montegallo AP 9 523 2305
Castelsantangelo sul Nera MC 9 281 2586
Bolognola MC 11 142 2728
Amandola FM 11 3629 6357
Ussita MC 11 444 6801
Comunanza AP 14 3166 9967
Visso MC 15 1107 11074
Arquata del Tronto AP 15 1178 12252
Sarnano MC 15 3264 15516
Palmiano AP 16 196 15712
Acquacanina MC 16 121 15833
Fiastra MC 17 559 16392
Roccafluvione AP 18 2010 18402
Montefalcone Appennino FM 18 424 18826
Smerillo FM 19 365 19191
Norcia PG 19 4957 24148
Venarotta AP 19 2066 26214
Preci PG 19 724 26938
Acquasanta Terme AP 19 2916 29854
Gualdo MC 19 815 30669
Force AP 20 1354 32023

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NW of Teramo (54892 inhabitants)
46 Km E of Foligno (57155 inhabitants)
62 Km N of L'Aquila (69753 inhabitants)
63 Km NE of Terni (111501 inhabitants)
75 Km E of Perugia (166134 inhabitants)
82 Km S of Ancona (100861 inhabitants)
84 Km NW of Montesilvano (53738 inhabitants)
92 Km NW of Pescara (121014 inhabitants)
96 Km NW of Chieti (51815 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.1 2020-10-29
14:18:36
42.9 13.27 25 2020-10-29
14:36:42
Sala Sismica INGV-Roma 84239121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-29 14:18:36 ± 0.25
Latitude 42.90 ± 0.01
Longitude 13.27 ± 0.01
Depth (km) 25 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84239121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 980
Semi-minor axis of confidence ellipse (meter) 358
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 25
Circular confidence region, given by single value of horizontal uncertainty (meter) 980
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.28329
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 84239121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-29 14:36:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CESI.HHZ. 2020-10-29T14:18:49.34 0.6 undecidable manual S 291 0.2833 122 0.49 43
IV.MF5.EHZ. 2020-10-29T14:18:46.74 0.6 undecidable manual S 59 0.1646 139 0.59 42
IV.CSP1.EHZ. 2020-10-29T14:18:46.70 0.6 undecidable manual S 347 0.1934 134 -0.03 49
IV.FDMO.HHZ. 2020-10-29T14:18:46.44 0.6 undecidable manual S 315 0.1862 135 -0.15 48
IV.NRCA.HHZ. 2020-10-29T14:18:45.44 0.6 undecidable manual S 238 0.1322 146 -0.12 48
IV.MMO1.EHZ. 2020-10-29T14:18:44.11 0.6 undecidable manual S 96 0.0441 167 -0.4 46
IV.MC2.EHZ. 2020-10-29T14:18:44.66 0.6 undecidable manual S 277 0.0576 164 0.06 50
IV.SMA1.EHZ. 2020-10-29T14:18:43.92 3.0 undecidable manual P -0.05 0
IV.CESI.HHZ. 2020-10-29T14:18:43.94 0.3 positive manual P 291 0.2833 122 0.14 70
IV.FDMO.HHZ. 2020-10-29T14:18:42.32 0.1 undecidable manual P 315 0.1862 135 -0.18 94
IV.MF5.EHZ. 2020-10-29T14:18:42.41 0.1 positive manual P 59 0.1646 139 0.17 94
IV.CSP1.EHZ. 2020-10-29T14:18:42.49 0.1 undecidable manual P 347 0.1934 134 -0.09 96
IV.NRCA.HHZ. 2020-10-29T14:18:41.86 0.6 positive manual P 238 0.1322 146 -0.04 49
IV.MMO1.EHZ. 2020-10-29T14:18:41.09 0.3 negative manual P 96 0.0441 167 -0.21 72
IV.MC2.EHZ. 2020-10-29T14:18:41.35 0.1 undecidable manual P 277 0.0576 164 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.4 0.00015375355 0.1216 AML other m 2020-10-29T14:18:46.25
IV.NRCA.HHN. ML:1.4 0.00013784105 0.1856 AML other m 2020-10-29T14:18:45.83
IV.NRCA.HNE. ML:1.4 0.00014334625 0.0896 AML other m 2020-10-29T14:18:46.25
IV.FDMO.HHE. ML:0.6 1.896423E-5 0.1024 AML other m 2020-10-29T14:18:46.84
IV.FDMO.HHN. ML:0.8 3.0416755E-5 0.1408 AML other m 2020-10-29T14:18:46.79
IV.CSP1.EHE. ML:0.9 4.075281E-5 0.0768 AML other m 2020-10-29T14:18:46.00
IV.CSP1.EHN. ML:1 5.1872365E-5 0.0832 AML other m 2020-10-29T14:18:47.22
IV.CESI.HHE. ML:1 3.71694E-5 0.3008 AML other m 2020-10-29T14:18:49.42
IV.CESI.HHN. ML:0.9 2.7721265E-5 0.2944 AML other m 2020-10-29T14:18:51.14
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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