Earthquake with magnitude of ML 1.2 on date 26-09-2020 and time 11:59:59 (Italy) in region 1 km W Sarnano (MC)

A magnitude ML 1.2 earthquake occured in region: 1 km W Sarnano (MC), on

  • 26-09-2020 09:59:59 (UTC)
  • 26-09-2020 11:59:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.03, 13.28 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sarnano MC 1 3264 3264
Gualdo MC 6 815 4079
Bolognola MC 6 142 4221
Amandola FM 8 3629 7850
San Ginesio MC 9 3498 11348
Acquacanina MC 9 121 11469
Cessapalombo MC 9 512 11981
Fiastra MC 10 559 12540
Montefortino FM 11 1178 13718
Camporotondo di Fiastrone MC 11 563 14281
Penna San Giovanni MC 12 1108 15389
Sant'Angelo in Pontano MC 12 1436 16825
Monte San Martino MC 13 765 17590
Caldarola MC 13 1823 19413
Comunanza AP 13 3166 22579
Smerillo FM 14 365 22944
Ripe San Ginesio MC 14 852 23796
Montefalcone Appennino FM 15 424 24220
Montemonaco AP 15 604 24824
Belforte del Chienti MC 15 1886 26710
Ussita MC 15 444 27154
Fiordimonte MC 16 202 27356
Colmurano MC 16 1263 28619
Pievebovigliana MC 17 866 29485
Santa Vittoria in Matenano FM 17 1330 30815
Falerone FM 18 3337 34152
Servigliano FM 18 2336 36488
Serrapetrona MC 18 966 37454
Loro Piceno MC 18 2401 39855
Force AP 19 1354 41209
Castelsantangelo sul Nera MC 19 281 41490
Pieve Torina MC 19 1458 42948
Montappone FM 19 1682 44630
Monte Vidon Corrado FM 19 731 45361
Visso MC 20 1107 46468
Tolentino MC 20 20069 66537
Urbisaglia MC 20 2628 69165

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
68 Km S of Ancona (100861 inhabitants)
73 Km E of Perugia (166134 inhabitants)
74 Km NE of Terni (111501 inhabitants)
76 Km N of L'Aquila (69753 inhabitants)
91 Km NW of Montesilvano (53738 inhabitants)
93 Km S of Fano (60888 inhabitants)
99 Km NW of Pescara (121014 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 1.2 2020-09-26
09:59:59
43.03 13.29 25 2020-09-26
10:27:00
Sala Sismica INGV-Roma 83268311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-26 09:59:59 ± 0.27
Latitude 43.03 ± 0.01
Longitude 13.29 ± 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 83268311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1012
Semi-minor axis of confidence ellipse (meter) 598
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 336
Circular confidence region, given by single value of horizontal uncertainty (meter) 1010
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.46585
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 83268311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-26 10:27:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TREG.HNZ. 2020-09-26T10:01:34.56 3.0 undecidable manual Sg 11.86 0
GU.REMY.HHZ. 2020-09-26T10:01:32.83 3.0 undecidable manual Pg 14.66 0
IV.MTGR.HHZ. 2020-09-26T10:01:32.05 3.0 undecidable manual Pg 14.75 0
IV.ERC.EHZ. 2020-09-26T10:01:31.37 3.0 undecidable manual Pg 15.89 0
IV.GMB.BHZ. 2020-09-26T10:01:28.56 3.0 undecidable manual Pg 9.92 0
AC.VLO.HHZ. 2020-09-26T10:01:22.60 3.0 positive manual Pn 2.56 0
MN.PDG.HHZ. 2020-09-26T10:01:20.22 3.0 negative manual Pg 11.91 0
IV.MESG.HHZ. 2020-09-26T10:01:10.67 3.0 positive manual Pn 5.95 0
OT.OT05.EHZ. 2020-09-26T10:01:06.29 3.0 undecidable manual Sn 0.79 0
GU.GRAM.HHZ. 2020-09-26T10:00:55.86 3.0 negative manual Pg 11.47 0
IV.CTI.HHZ. 2020-09-26T10:00:51.22 3.0 undecidable manual Pn -0.09 0
OX.VARN.HHZ. 2020-09-26T10:00:50.29 3.0 undecidable manual Pn 1.09 0
IX.MNT3.HHZ.02 2020-09-26T10:00:47.19 3.0 positive manual Pg 5.38 0
IV.SFI.EHZ. 2020-09-26T10:00:43.36 3.0 undecidable manual S -1.02 0
IV.CRTC.HHZ. 2020-09-26T10:00:17.02 3.0 undecidable manual P 0.12 0
IV.NRCA.HHZ. 2020-09-26T10:00:10.68 0.3 undecidable manual S 212 0.2347 127 0.04 72
IV.LNSS.HHZ. 2020-09-26T10:00:09.30 0.6 undecidable manual P 203 0.4658 109 -0.32 43
IV.MMO1.EHE. 2020-09-26T10:00:08.19 0.1 undecidable manual S 167 0.1367 144 -0.41 90
IV.MF5.EHZ. 2020-09-26T10:00:08.62 0.1 undecidable manual S 109 0.1349 145 0.04 99
IV.MC2.EHZ. 2020-09-26T10:00:08.89 0.1 undecidable manual S 210 0.1403 144 0.23 94
IV.CSP1.EHZ. 2020-09-26T10:00:07.78 0.1 undecidable manual S 315 0.0836 157 -0.04 100
IV.GUMA.HHZ. 2020-09-26T10:00:07.48 0.3 undecidable manual S 51 0.0477 166 0 75
IV.NRCA.HHZ. 2020-09-26T10:00:06.04 0.1 undecidable manual P 212 0.2347 127 -0.06 96
IV.MMO1.EHE. 2020-09-26T10:00:05.64 0.3 undecidable manual P 167 0.1367 144 0.72 62
IV.MC2.EHZ. 2020-09-26T10:00:05.04 0.6 positive manual P 210 0.1403 144 0.08 49
IV.CSP1.EHZ. 2020-09-26T10:00:04.41 0.1 undecidable manual P 315 0.0836 157 -0.06 99
IV.MF5.EHZ. 2020-09-26T10:00:04.90 0.1 negative manual P 109 0.1349 145 -0.01 98
IV.GUMA.HHZ. 2020-09-26T10:00:04.14 0.3 undecidable manual P 51 0.0477 166 -0.14 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHE. ML:1.5 0.000172670885 2.08 AML other m 2020-09-26T10:00:08.73
IV.CSP1.EHN. ML:1.4 0.00014906943 2.4192 AML other m 2020-09-26T10:00:07.70
IV.NRCA.HHE. ML:0.9 2.9566924E-5 0.1408 AML other m 2020-09-26T10:00:11.62
IV.NRCA.HHN. ML:1 4.032487E-5 0.3968 AML other m 2020-09-26T10:00:11.07
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