Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 27-08-2020 and time 17:56:06 (Italy) in region 1 km S Sarnano (MC)

A magnitude ML 1.8 earthquake occured in region: 1 km S Sarnano (MC), on

  • 27-08-2020 15:56:06 (UTC)
  • 27-08-2020 17:56:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0260, 13.3020 at 24 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.

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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
Sarnano MC 1 3264 3264
Gualdo MC 6 815 4079
Amandola FM 7 3629 7708
Bolognola MC 7 142 7850
San Ginesio MC 9 3498 11348
Montefortino FM 10 1178 12526
Cessapalombo MC 10 512 13038
Acquacanina MC 10 121 13159
Penna San Giovanni MC 11 1108 14267
Sant'Angelo in Pontano MC 11 1436 15703
Monte San Martino MC 11 765 16468
Comunanza AP 12 3166 19634
Fiastra MC 12 559 20193
Smerillo FM 12 365 20558
Camporotondo di Fiastrone MC 12 563 21121
Montefalcone Appennino FM 14 424 21545
Caldarola MC 14 1823 23368
Montemonaco AP 14 604 23972
Ripe San Ginesio MC 14 852 24824
Santa Vittoria in Matenano FM 16 1330 26154
Ussita MC 16 444 26598
Colmurano MC 16 1263 27861
Belforte del Chienti MC 16 1886 29747
Servigliano FM 17 2336 32083
Falerone FM 17 3337 35420
Force AP 17 1354 36774
Fiordimonte MC 17 202 36976
Pievebovigliana MC 18 866 37842
Loro Piceno MC 18 2401 40243
Monte Vidon Corrado FM 18 731 40974
Montappone FM 18 1682 42656
Monteleone di Fermo FM 19 395 43051
Castelsantangelo sul Nera MC 19 281 43332
Palmiano AP 19 196 43528
Montelparo FM 19 778 44306
Serrapetrona MC 19 966 45272
Massa Fermana FM 20 963 46235

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km E of Foligno (57155 inhabitants)
52 Km NW of Teramo (54892 inhabitants)
68 Km S of Ancona (100861 inhabitants)
74 Km NE of Terni (111501 inhabitants)
75 Km E of Perugia (166134 inhabitants)
75 Km N of L'Aquila (69753 inhabitants)
90 Km NW of Montesilvano (53738 inhabitants)
94 Km S of Fano (60888 inhabitants)
97 Km NW of Pescara (121014 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
Bulletin
Rev1000 		ML 1.8 2020-08-27
15:56:06		 43.0257 13.3018 24 2020-11-19
12:37:01		 Bollettino Sismico Italiano INGV 82865351
Reviewed
Rev100 		ML 1.8 2020-08-27
15:56:06		 43.0257 13.3053 26 2020-08-27
16:07:10		 Sala Sismica INGV-Roma 82381811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-27 15:56:06 ± 0.1
Latitude 43.0257 ± 0.0036
Longitude 13.3018 ± 0.0049
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82865351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 399
Semi-minor axis of confidence ellipse (meter) 186
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 200
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 45
Number of associated phases, regardless of their use for origin computation 63
Number of defining phases 46
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.86874
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 39
Type of magnitude ML
Reference to an origin 82865351
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-09-13 08:37:20

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 82381811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-27 16:07:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ACATE.EHZ. 2020-08-27T15:57:47.16 3.0 negative manual Pg 12.04 0
IV.AGLI.HHZ. 2020-08-27T15:57:44.28 3.0 undecidable manual Sn 0.93 0
RF.GEPF.HHZ. 2020-08-27T15:57:42.40 3.0 undecidable manual Sg 6.72 0
OX.DRE.HHZ. 2020-08-27T15:57:41.11 3.0 undecidable manual Sg 7.6 0
IV.PZUN.HHZ. 2020-08-27T15:57:30.79 3.0 undecidable manual Sn 0.22 0
MN.VSL.HHZ. 2020-08-27T15:57:26.42 3.0 positive manual Pg 11.82 0
IV.SPS2.HHZ. 2020-08-27T15:57:26.74 3.0 negative manual Pg 14.5 0
IV.LADO.EHZ. 2020-08-27T15:57:25.23 3.0 undecidable manual Pg 9.13 0
IV.TREM.HHZ. 2020-08-27T15:57:04.27 3.0 undecidable manual Sg 1.77 0
CR.STON.BHZ. 2020-08-27T15:56:54.94 3.0 negative manual Pn -1.93 0
IV.BRSN.EHZ. 2020-08-27T15:56:52.41 3.0 undecidable manual Sn -0.87 0
TV.SF01.EHZ. 2020-08-27T15:56:52.01 3.0 undecidable manual Sg 5.35 0
IV.VIVA.HHZ. 2020-08-27T15:56:49.81 3.0 undecidable manual Sg 1.6 0
GU.GSCL.HHZ. 2020-08-27T15:56:44.34 3.0 negative manual Pn 0.31 0
IV.IMOL.HNZ. 2020-08-27T15:56:38.78 3.0 undecidable manual Pg 3.18 0
IV.VAGA.HHZ. 2020-08-27T15:56:33.75 3.0 negative manual Pn -2.33 0
IV.RONT.HHZ. 2020-08-27T15:56:33.28 3.0 undecidable manual Pn -1.11 0
IV.MURB.HHZ. 2020-08-27T15:56:28.20 0.3 undecidable manual S 293 68.1762 103 0.81 54
IV.RM33.EHZ. 2020-08-27T15:56:25.30 0.3 undecidable manual S 187 57.6978 106 0.62 59
IV.ATCC.EHZ. 2020-08-27T15:56:24.80 0.3 undecidable manual S 288 56.499 106 0.45 64
IV.ASSB.HHZ. 2020-08-27T15:56:23.50 0.3 undecidable manual S 272 52.2033 107 0.25 67
IV.T0110.HHZ. 2020-08-27T15:56:22.86 0.1 undecidable manual P 156 96.4257 99 0.09 83
IV.EL6.EHZ. 2020-08-27T15:56:19.60 0.3 undecidable manual S 334 37.4292 115 0.03 72
IV.CESI.HHZ. 2020-08-27T15:56:18.60 0.3 undecidable manual S 266 32.3454 120 0.24 70
IV.MURB.HHZ. 2020-08-27T15:56:18.67 0.1 undecidable manual P 293 68.1762 103 0.18 87
IV.MML1.HNE. 2020-08-27T15:56:17.50 0.6 undecidable manual S 290 28.4493 123 0.01 48
IV.MTRA.EHZ. 2020-08-27T15:56:17.90 0.3 undecidable manual S 166 30.8469 121 -0.12 71
IV.MNTT.EHZ. 2020-08-27T15:56:17.20 0.3 undecidable manual S 80 24.1536 129 0.64 62
IV.RM33.EHZ. 2020-08-27T15:56:16.64 0.1 undecidable manual P 187 57.6978 106 -0.29 88
IV.NRCA.HHZ. 2020-08-27T15:56:16.90 0.3 undecidable manual S 216 26.1516 126 -0.09 72
IV.SSM1.HNE. 2020-08-27T15:56:16.60 0.3 undecidable manual S 336 24.6531 128 -0.07 72
IV.ATCC.EHZ. 2020-08-27T15:56:16.60 0.3 undecidable manual P 288 56.499 106 -0.14 68
IV.FEMA.HNE. 2020-08-27T15:56:16.46 0.3 undecidable manual S 251 21.6672 132 0.42 69
IV.MC2.EHZ. 2020-08-27T15:56:15.10 0.3 undecidable manual S 216 15.6732 142 0.15 73
IV.ASSB.HHZ. 2020-08-27T15:56:15.84 0.3 undecidable manual P 272 52.2033 107 -0.27 66
IV.GAVE.EHN. 2020-08-27T15:56:15.79 0.3 undecidable manual P 222 49.7169 108 0.05 70
IV.LNSS.HNZ. 2020-08-27T15:56:15.86 0.3 undecidable manual P 204 51.5151 108 -0.15 68
IV.TERO.HHZ. 2020-08-27T15:56:15.69 0.3 undecidable manual P 151 51.0156 108 -0.24 68
IV.SAP2.EHZ. 2020-08-27T15:56:14.10 0.6 undecidable manual S 45 11.1777 152 -0.2 48
IV.MMO1.EHN. 2020-08-27T15:56:14.50 0.3 undecidable manual S 172 14.1747 145 -0.22 71
IV.SMA1.EHZ. 2020-08-27T15:56:14.62 0.3 undecidable manual P 176 43.9227 111 -0.28 68
IV.CING.HNZ. 2020-08-27T15:56:14.07 0.3 undecidable manual P 348 39.7269 114 -0.24 68
IV.PF6.EHN. 2020-08-27T15:56:14.41 0.3 undecidable manual S 325 15.1737 143 -0.47 67
IV.MF5.EHZ. 2020-08-27T15:56:14.90 0.3 undecidable manual S 108 13.4754 147 0.28 71
IV.FDMO.HHN. 2020-08-27T15:56:14.90 0.3 undecidable manual S 274 17.4714 139 -0.36 68
IV.GUMA.HHZ. 2020-08-27T15:56:13.80 0.3 undecidable manual S 33 4.8951 167 0.09 75
IV.EL6.EHZ. 2020-08-27T15:56:13.55 0.6 undecidable manual P 334 37.4292 115 -0.43 44
IV.OFFI.HHE. 2020-08-27T15:56:13.88 0.6 undecidable manual P 108 32.745 119 0.54 42
IV.CESI.HHZ. 2020-08-27T15:56:13.25 0.3 undecidable manual P 266 32.3454 120 -0.03 72
IV.NRCA.HHZ. 2020-08-27T15:56:12.30 0.1 undecidable manual P 216 26.1516 126 -0.19 94
IV.MML1.HNE. 2020-08-27T15:56:12.78 0.3 undecidable manual P 290 28.4493 123 0 73
IV.MTRA.EHZ. 2020-08-27T15:56:12.77 0.3 undecidable manual P 166 30.8469 121 -0.31 69
IV.MNTT.EHZ. 2020-08-27T15:56:12.53 0.1 undecidable manual P 80 24.1536 129 0.29 92
IV.FEMA.HNE. 2020-08-27T15:56:12.03 0.3 undecidable manual P 251 21.6672 132 0.09 73
IV.SSM1.HNE. 2020-08-27T15:56:12.40 0.3 undecidable manual P 336 24.6531 128 0.09 72
IV.FDMO.HHN. 2020-08-27T15:56:11.24 0.1 undecidable manual P 274 17.4714 139 -0.25 94
IV.MNTP.HNZ. 2020-08-27T15:56:11.62 0.3 undecidable manual P 48 18.3705 137 0.03 74
IV.MF5.EHZ. 2020-08-27T15:56:11.24 0.1 undecidable manual P 108 13.4754 147 0.12 97
IV.MC2.EHZ. 2020-08-27T15:56:11.29 0.1 undecidable manual P 216 15.6732 142 -0.03 99
IV.SAP2.EHZ. 2020-08-27T15:56:10.93 0.3 undecidable manual P 45 11.1777 152 -0.01 75
IV.PF6.EHN. 2020-08-27T15:56:10.90 0.3 undecidable manual P 325 15.1737 143 -0.38 69
IV.GUMA.HHZ. 2020-08-27T15:56:10.52 0.1 undecidable manual P 33 4.8951 167 -0.08 100
IV.MMO1.EHN. 2020-08-27T15:56:10.95 0.3 undecidable manual P 172 14.1747 145 -0.23 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:0.0 0.00048223245 0.0768 AML other m 2020-08-27T15:56:17.54
IV.SAP2.EHN. ML:0.0 0.0017157505 0.2048 AML other m 2020-08-27T15:56:15.09
IV.MF5.EHN. ML:0.0 0.0012526150000000001 0.1024 AML other m 2020-08-27T15:56:15.10
IV.MF5.EHE. ML:0.0 0.0006639739499999999 0.1408 AML other m 2020-08-27T15:56:15.08
IV.SMA1.EHE. ML:0.0 0.000039116305 0.1536 AML other m 2020-08-27T15:56:22.92
IV.SAP2.EHE. ML:0.0 0.00031098765 0.2176 AML other m 2020-08-27T15:56:16.20
IV.NRCA.HNE. ML:0.0 0.0007694296000000001 0.1024 AML other m 2020-08-27T15:56:17.57
IV.MNTT.EHN. ML:0.0 0.00039514890000000004 0.2816 AML other m 2020-08-27T15:56:18.30
IV.MTRA.EHN. ML:0.0 0.00014533065 0.3456 AML other m 2020-08-27T15:56:19.19
IV.CESI.HHN. ML:0.0 0.00029015584999999997 0.2432 AML other m 2020-08-27T15:56:18.91
IV.CESI.HHE. ML:0.0 0.00017642974999999999 0.1024 AML other m 2020-08-27T15:56:19.37
IV.MTRA.EHE. ML:0.0 0.00008660161499999999 0.1024 AML other m 2020-08-27T15:56:19.21
IV.EL6.EHE. ML:0.0 0.0001417167 0.2816 AML other m 2020-08-27T15:56:21.00
IV.EL6.EHN. ML:0.0 0.00017737525 0.3072 AML other m 2020-08-27T15:56:21.45
IV.SMA1.EHN. ML:0.0 0.000066573205 0.1792 AML other m 2020-08-27T15:56:23.87
IV.MNTT.EHE. ML:0.0 0.00037609760000000003 0.2688 AML other m 2020-08-27T15:56:23.48
IV.ASSB.HHN. ML:0.0 0.00012619134999999998 0.2048 AML other m 2020-08-27T15:56:24.51
IV.ASSB.HHE. ML:0.0 0.00008800021499999999 0.128 AML other m 2020-08-27T15:56:25.25
IV.ATCC.EHN. ML:0.0 0.00008257756999999999 0.2048 AML other m 2020-08-27T15:56:25.27
IV.ATCC.EHE. ML:0.0 0.0001699292 0.1408 AML other m 2020-08-27T15:56:25.46
IV.RM33.EHN. ML:0.0 0.00005614277 0.1664 AML other m 2020-08-27T15:56:25.75
IV.RM33.EHE. ML:0.0 0.000036234675 0.1408 AML other m 2020-08-27T15:56:26.11
IV.ARVD.HHE. ML:1.3 0.00003395 0.72 AML other m 2020-08-27T15:56:27.44
IV.MURB.HHE. ML:0.0 0.00025239690000000004 0.192 AML other m 2020-08-27T15:56:29.39
IV.MURB.HHN. ML:0.0 0.00010859377000000001 0.1536 AML other m 2020-08-27T15:56:29.24
IV.MNTP.HNN. ML:1.9 0.00043925020000000004 0.1792 AML other m 2020-08-27T15:56:16.10
IV.MNTP.HNE. ML:1.9 0.00040870865 0.2048 AML other m 2020-08-27T15:56:16.47
IV.NRCA.HHN. ML:2.1 0.00048692075 0.0896 AML other m 2020-08-27T15:56:17.59
IV.NRCA.HHE. ML:2.3 0.00085820055 0.1152 AML other m 2020-08-27T15:56:17.57
IV.MTRA.HNE. ML:1.4 0.00008910189000000001 0.0896 AML other m 2020-08-27T15:56:18.85
IV.MTRA.HNN. ML:1.5 0.00011038277500000001 0.1408 AML other m 2020-08-27T15:56:18.32
IV.CESI.HNE. ML:1.6 0.00016231204999999998 0.1152 AML other m 2020-08-27T15:56:19.38
IV.CESI.HNN. ML:1.8 0.00024217015000000002 0.2176 AML other m 2020-08-27T15:56:18.91
IV.TERO.HNE. ML:1.6 0.00008909344999999999 0.4992 AML other m 2020-08-27T15:56:24.04
IV.TERO.HHN. ML:1.3 0.000046262415 0.1152 AML other m 2020-08-27T15:56:24.00
IV.TERO.HHE. ML:1.3 0.00004539494 0.1024 AML other m 2020-08-27T15:56:25.00
IV.MURB.HNE. ML:2.2 0.00023596195 0.2048 AML other m 2020-08-27T15:56:29.49
IV.T0110.HHE. ML:1.4 0.000025502555000000002 0.6144 AML other m 2020-08-27T15:56:44.03
IV.T0110.HHN. ML:1.5 0.000028748235 0.4352 AML other m 2020-08-27T15:56:44.70
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