Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 28-08-2020 and time 03:27:40 (Italy) in region 1 km S Sarnano (MC)

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

  • 28-08-2020 01:27:40 (UTC)
  • 28-08-2020 03:27:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0240, 13.2980 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
Bolognola MC 7 142 4221
Amandola FM 7 3629 7850
San Ginesio MC 10 3498 11348
Montefortino FM 10 1178 12526
Acquacanina MC 10 121 12647
Cessapalombo MC 10 512 13159
Penna San Giovanni MC 11 1108 14267
Sant'Angelo in Pontano MC 12 1436 15703
Monte San Martino MC 12 765 16468
Fiastra MC 12 559 17027
Comunanza AP 12 3166 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 15 852 24824
Ussita MC 16 444 25268
Santa Vittoria in Matenano FM 16 1330 26598
Belforte del Chienti MC 16 1886 28484
Colmurano MC 16 1263 29747
Fiordimonte MC 17 202 29949
Force AP 17 1354 31303
Servigliano FM 17 2336 33639
Falerone FM 17 3337 36976
Pievebovigliana MC 18 866 37842
Castelsantangelo sul Nera MC 19 281 38123
Loro Piceno MC 19 2401 40524
Monte Vidon Corrado FM 19 731 41255
Montappone FM 19 1682 42937
Palmiano AP 19 196 43133
Monteleone di Fermo FM 19 395 43528
Serrapetrona MC 19 966 44494
Montelparo FM 19 778 45272
Visso MC 20 1107 46379

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)
74 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 1.2 2020-08-28
01:27:40		 43.0243 13.2982 24 2020-11-19
12:37:07		 Bollettino Sismico Italiano INGV 84784791
Reviewed
Rev100 		ML 1.2 2020-08-28
01:27:40		 43.0183 13.2727 23 2020-08-28
02:18:41		 Sala Sismica INGV-Roma 82395801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-28 01:27:40 ± 0.11
Latitude 43.0243 ± 0.0045
Longitude 13.2982 ± 0.0074
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 84784791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 485
Semi-minor axis of confidence ellipse (meter) 425
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 224
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.04676
Epicentral distance of station farthest from the epicenter (degree) 0.50632
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 84784791
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-17 01:06:20

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 82395801
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-28 02:18:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2020-08-28T01:27:59.49 0.6 undecidable manual S 289 56.1993 107 0.76 37
IV.ASSB.HHZ. 2020-08-28T01:27:58.28 0.6 undecidable manual S 272 51.9036 108 0.65 39
IV.TERO.HHZ. 2020-08-28T01:27:57.86 0.6 undecidable manual S 151 51.0156 109 0.45 43
IV.SMA1.EHZ. 2020-08-28T01:27:55.70 0.6 undecidable manual S 176 43.8228 112 0.1 47
IV.EL6.EHZ. 2020-08-28T01:27:54.30 0.6 undecidable manual S 335 37.3293 116 0.27 45
IV.CESI.HHZ. 2020-08-28T01:27:53.07 0.6 undecidable manual S 266 32.0457 121 0.3 46
IV.ATCC.EHZ. 2020-08-28T01:27:51.09 0.3 undecidable manual P 289 56.1993 107 -0.04 69
IV.NRCA.HHZ. 2020-08-28T01:27:51.42 0.6 undecidable manual S 215 25.9518 127 0 49
IV.TERO.HHZ. 2020-08-28T01:27:50.10 0.3 undecidable manual P 151 51.0156 109 -0.27 67
IV.MNTP.HNZ. 2020-08-28T01:27:50.58 0.6 undecidable manual S 48 18.6702 138 0.59 43
IV.ASSB.HHZ. 2020-08-28T01:27:50.29 0.1 undecidable manual P 272 51.9036 108 -0.2 90
IV.MF5.EHZ. 2020-08-28T01:27:49.51 0.3 undecidable manual S 107 13.6752 147 0.33 70
IV.MMO1.EHN. 2020-08-28T01:27:49.19 0.3 undecidable manual S 170 14.0748 146 -0.04 74
IV.MC2.EHZ. 2020-08-28T01:27:49.76 0.3 undecidable manual S 215 15.3735 144 0.33 70
IV.SMA1.EHZ. 2020-08-28T01:27:49.22 0.1 undecidable manual P 176 43.8228 112 -0.1 93
IV.FDMO.HHZ. 2020-08-28T01:27:49.51 0.3 undecidable manual S 275 17.1717 140 -0.21 71
IV.PF6.EHN. 2020-08-28T01:27:48.99 0.3 undecidable manual S 326 15.1737 144 -0.4 68
IV.EL6.EHZ. 2020-08-28T01:27:48.49 0.3 undecidable manual P 335 37.3293 116 0.07 70
IV.CSP1.EHZ. 2020-08-28T01:27:48.57 0.3 undecidable manual S 315 10.6782 153 -0.2 72
IV.GUMA.HNN. 2020-08-28T01:27:48.39 0.3 undecidable manual S 35 5.1948 166 0.12 75
IV.SAP2.EHE. 2020-08-28T01:27:48.86 0.3 undecidable manual S 46 11.4774 152 -0.01 75
IV.CESI.HHZ. 2020-08-28T01:27:47.68 0.1 undecidable manual P 266 32.0457 121 -0.01 97
IV.MNTP.HNZ. 2020-08-28T01:27:46.08 0.3 undecidable manual P 48 18.6702 138 0 74
IV.NRCA.HHZ. 2020-08-28T01:27:46.80 0.1 undecidable manual P 215 25.9518 127 -0.11 96
IV.FDMO.HHZ. 2020-08-28T01:27:45.73 0.1 positive manual P 275 17.1717 140 -0.2 95
IV.SAP2.EHE. 2020-08-28T01:27:45.48 0.3 undecidable manual P 46 11.4774 152 0.04 74
IV.MF5.EHZ. 2020-08-28T01:27:45.75 0.1 positive manual P 107 13.6752 147 0.14 97
IV.MMO1.EHN. 2020-08-28T01:27:45.49 0.1 undecidable manual P 170 14.0748 146 -0.16 96
IV.MC2.EHZ. 2020-08-28T01:27:45.81 0.1 undecidable manual P 215 15.3735 144 0.05 99
IV.PF6.EHN. 2020-08-28T01:27:45.41 0.3 undecidable manual P 326 15.1737 144 -0.33 70
IV.CSP1.EHZ. 2020-08-28T01:27:45.18 0.1 undecidable manual P 315 10.6782 153 -0.2 96
IV.GUMA.HNN. 2020-08-28T01:27:45.03 0.1 undecidable manual P 35 5.1948 166 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MF5.EHN. ML:1.4 0.0001365 0.12 AML other m 2020-08-28T01:27:49.62
IV.FDMO.HHE. ML:1.2 0.0000877 0.18 AML other m 2020-08-28T01:27:49.70
IV.MF5.EHE. ML:1.1 0.0000772 0.5 AML other m 2020-08-28T01:27:49.60
IV.FDMO.HHN. ML:1.0 0.0000512 0.78 AML other m 2020-08-28T01:27:50.44
IV.NRCA.HHE. ML:1.7 0.00023050000000000002 1.64 AML other m 2020-08-28T01:27:52.03
IV.NRCA.HHN. ML:1.6 0.000174 1.84 AML other m 2020-08-28T01:27:52.04
IV.CESI.HHE. ML:1.1 0.000042749999999999996 0.44 AML other m 2020-08-28T01:27:53.69
IV.CESI.HHN. ML:1.3 0.0000639 0.4 AML other m 2020-08-28T01:27:53.35
IV.ASSB.HHE. ML:1.0 0.000019549999999999997 1.32 AML other m 2020-08-28T01:27:58.10
IV.ASSB.HHN. ML:1.0 0.000019849999999999998 0.6 AML other m 2020-08-28T01:27:59.40
IV.ATCC.EHE. ML:1.1 0.0000266 0.26 AML other m 2020-08-28T01:27:59.83
IV.ATCC.EHN. ML:1.0 0.0000204 1.42 AML other m 2020-08-28T01:28:00.06
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