Earthquake with magnitude of ML 0.4 on date 27-11-2020 and time 21:22:02 (Italy) in region 4 km W Amandola (FM)

A magnitude ML 0.4 earthquake occured in region: 4 km W Amandola (FM), on

  • 27-11-2020 20:22:02 (UTC)
  • 27-11-2020 21:22:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43, 13.31 at 12 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
Amandola FM 4 3629 3629
Sarnano MC 5 3264 6893
Montefortino FM 6 1178 8071
Bolognola MC 7 142 8213
Gualdo MC 8 815 9028
Comunanza AP 10 3166 12194
Montemonaco AP 11 604 12798
Smerillo FM 11 365 13163
Acquacanina MC 12 121 13284
Monte San Martino MC 12 765 14049
Penna San Giovanni MC 12 1108 15157
Montefalcone Appennino FM 12 424 15581
San Ginesio MC 13 3498 19079
Fiastra MC 13 559 19638
Cessapalombo MC 13 512 20150
Sant'Angelo in Pontano MC 14 1436 21586
Ussita MC 15 444 22030
Force AP 15 1354 23384
Camporotondo di Fiastrone MC 16 563 23947
Santa Vittoria in Matenano FM 16 1330 25277
Palmiano AP 16 196 25473
Castelsantangelo sul Nera MC 17 281 25754
Montegallo AP 17 523 26277
Ripe San Ginesio MC 17 852 27129
Caldarola MC 17 1823 28952
Servigliano FM 18 2336 31288
Fiordimonte MC 18 202 31490
Falerone FM 19 3337 34827
Montelparo FM 19 778 35605
Monteleone di Fermo FM 19 395 36000
Colmurano MC 19 1263 37263
Visso MC 19 1107 38370
Pievebovigliana MC 20 866 39236
Belforte del Chienti MC 20 1886 41122
Venarotta AP 20 2066 43188

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km E of Foligno (57155 inhabitants)
50 Km NW of Teramo (54892 inhabitants)
71 Km S of Ancona (100861 inhabitants)
72 Km N of L'Aquila (69753 inhabitants)
72 Km NE of Terni (111501 inhabitants)
76 Km E of Perugia (166134 inhabitants)
87 Km NW of Montesilvano (53738 inhabitants)
95 Km NW of Pescara (121014 inhabitants)
97 Km S of Fano (60888 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 0.4 2020-11-27
20:22:02
43 13.31 12 2020-11-27
21:10:16
Sala Sismica INGV-Roma 85055901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-27 20:22:02 ± 0.13
Latitude 43.00 ± 0.01
Longitude 13.31 ± 0.01
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85055901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 996
Semi-minor axis of confidence ellipse (meter) 448
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 75
Circular confidence region, given by single value of horizontal uncertainty (meter) 1000
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 13
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) 0.16637
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:0.4

Field Value
Value 0.4
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 85055901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-27 21:10:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.APEC.HHZ. 2020-11-27T20:22:15.78 3.0 undecidable manual P -0.02 0
IV.PF6.EHE. 2020-11-27T20:22:09.88 0.6 undecidable manual S 330 0.1646 99 -0.17 48
IV.FDMO.HHZ. 2020-11-27T20:22:09.93 0.3 undecidable manual S 284 0.1664 99 -0.18 73
IV.MC2.EHZ. 2020-11-27T20:22:08.86 0.6 undecidable manual S 226 0.1214 112 0.04 49
IV.CSP1.EHZ. 2020-11-27T20:22:08.80 0.3 undecidable manual S 322 0.1223 112 -0.04 75
IV.GUMA.HHE. 2020-11-27T20:22:07.80 0.3 undecidable manual S 16 0.0692 137 0.24 73
IV.MMO1.EHZ. 2020-11-27T20:22:07.79 0.6 undecidable manual S 172 0.0971 122 -0.4 47
IV.CSP1.EHZ. 2020-11-27T20:22:06.27 0.1 undecidable manual P 322 0.1223 112 0.03 100
IV.MC2.EHZ. 2020-11-27T20:22:06.68 0.3 undecidable manual P 226 0.1214 112 0.44 68
IV.MF5.EHZ. 2020-11-27T20:22:06.30 0.6 positive manual P 94 0.1106 116 0.22 49
IV.PF6.EHE. 2020-11-27T20:22:06.89 0.1 undecidable manual P 330 0.1646 99 -0.05 99
IV.FDMO.HHZ. 2020-11-27T20:22:06.88 0.1 undecidable manual P 284 0.1664 99 -0.1 99
IV.MMO1.EHZ. 2020-11-27T20:22:05.66 0.1 undecidable manual P 172 0.0971 122 -0.22 97
IV.GUMA.HHE. 2020-11-27T20:22:05.61 0.1 undecidable manual P 16 0.0692 137 0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHE. ML:0.6 4.21067335E-5 0.1536 AML other m 2020-11-27T20:22:09.40
IV.CSP1.EHN. ML:0.8 6.6601285E-5 0.0768 AML other m 2020-11-27T20:22:09.21
IV.MF5.EHE. ML:0.5 3.453615E-5 0.9344 AML other m 2020-11-27T20:22:08.10
IV.MF5.EHN. ML:0.2 1.657877E-5 0.6912 AML other m 2020-11-27T20:22:17.63
IV.FDMO.HHE. ML:0.3 1.2524845E-5 0.192 AML other m 2020-11-27T20:22:10.20
IV.FDMO.HHN. ML:0.1 9.7083585E-6 0.1536 AML other m 2020-11-27T20:22:10.39
IV.APEC.HNE. ML:2.9 0.00083625165 1.5232 AML other m 2020-11-27T20:22:39.60
IV.APEC.HNN. ML:2.8 0.000682606 0.5504 AML other m 2020-11-27T20:22:41.82
IV.APEC.HHE. ML:1 7.725365E-6 0.1536 AML other m 2020-11-27T20:22:31.49
IV.APEC.HHN. ML:1.2 1.45045505E-5 0.1536 AML other m 2020-11-27T20:22:28.60
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download