Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 16-08-2021 and time 10:38:13 (Italy) in region 2 km W Montappone (FM)

A magnitude ML 1.3 earthquake occured in region: 2 km W Montappone (FM), on

  • 16-08-2021 08:38:13 (UTC)
  • 16-08-2021 10:38:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1360, 13.4410 at 21 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
Montappone FM 2 1682 1682
Massa Fermana FM 3 963 2645
Monte Vidon Corrado FM 4 731 3376
Loro Piceno MC 4 2401 5777
Falerone FM 4 3337 9114
Sant'Angelo in Pontano MC 5 1436 10550
Ripe San Ginesio MC 6 852 11402
Mogliano MC 7 4696 16098
Servigliano FM 7 2336 18434
Colmurano MC 8 1263 19697
Montegiorgio FM 8 6851 26548
Urbisaglia MC 9 2628 29176
Penna San Giovanni MC 9 1108 30284
Belmonte Piceno FM 9 646 30930
Petriolo MC 10 1998 32928
Francavilla d'Ete FM 10 964 33892
San Ginesio MC 10 3498 37390
Gualdo MC 11 815 38205
Monte San Martino MC 12 765 38970
Magliano di Tenna FM 12 1452 40422
Monsampietro Morico FM 12 659 41081
Monteleone di Fermo FM 12 395 41476
Rapagnano FM 13 2145 43621
Monte San Pietrangeli FM 13 2458 46079
Grottazzolina FM 13 3398 49477
Santa Vittoria in Matenano FM 14 1330 50807
Corridonia MC 14 15430 66237
Camporotondo di Fiastrone MC 14 563 66800
Montottone FM 14 979 67779
Smerillo FM 15 365 68144
Torre San Patrizio FM 15 2048 70192
Cessapalombo MC 15 512 70704
Tolentino MC 15 20069 90773
Montelparo FM 15 778 91551
Sarnano MC 16 3264 94815
Monte Giberto FM 16 801 95616
Montefalcone Appennino FM 16 424 96040
Monte Rinaldo FM 17 379 96419
Pollenza MC 17 6618 103037
Belforte del Chienti MC 17 1886 104923
Monte San Giusto MC 17 8191 113114
Caldarola MC 17 1823 114937
Ortezzano FM 18 774 115711
Ponzano di Fermo FM 18 1674 117385
Monte Vidon Combatte FM 18 433 117818
Macerata MC 18 42473 160291
Amandola FM 19 3629 163920
Montegranaro FM 19 12990 176910
Petritoli FM 19 2335 179245
Force AP 20 1354 180599
Comunanza AP 20 3166 183765

Municipalities with at least 50000 inhabitants

An earthquake occurred to
54 Km S of Ancona (100861 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
63 Km E of Foligno (57155 inhabitants)
85 Km E of Perugia (166134 inhabitants)
86 Km SE of Fano (60888 inhabitants)
87 Km N of L'Aquila (69753 inhabitants)
90 Km NW of Montesilvano (53738 inhabitants)
91 Km NE of Terni (111501 inhabitants)
96 Km SE of Pesaro (94582 inhabitants)
98 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 1.3 2021-08-16
08:38:13		 43.1358 13.4407 21 2021-12-29
11:12:21		 Bollettino Sismico Italiano INGV 94401611
Reviewed
Rev100 		ML 1.2 2021-08-16
08:38:13		 43.1315 13.4473 19 2021-08-16
08:44:44		 Sala Sismica INGV-Roma 94242861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-16 08:38:13 ± 0.13
Latitude 43.1358 ± 0.0054
Longitude 13.4407 ± 0.0074
Depth (km) 21 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 94401611

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 622
Semi-minor axis of confidence ellipse (meter) 381
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 349
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 53
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38491
Number of stations at which the event was observed 40
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 24
Type of magnitude ML
Reference to an origin 94401611
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-17 18:57:20

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 94242861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-16 08:44:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TDS.HHZ. 2021-08-16T08:40:02.99 3.0 undecidable manual Sn -1.5 0
IV.LINA.HHZ. 2021-08-16T08:40:02.98 3.0 undecidable manual Pn 3.98 0
IV.MAGA.HHZ. 2021-08-16T08:40:01.94 3.0 undecidable manual Sg 13.34 0
CR.STON.BHZ. 2021-08-16T08:39:58.26 3.0 undecidable manual Sg 13.92 0
IV.ZEN8.EHZ. 2021-08-16T08:39:53.38 3.0 undecidable manual Sg 8.54 0
IV.CADC.EHZ. 2021-08-16T08:39:52.96 3.0 undecidable manual Sg 4.81 0
AC.VLO.HHZ. 2021-08-16T08:39:46.86 3.0 positive manual Pg 13.49 0
IV.PZUN.HHZ. 2021-08-16T08:39:42.78 3.0 undecidable manual Sg 3.71 0
IV.CMDO.HHZ. 2021-08-16T08:39:37.92 3.0 positive manual Pn 0.69 0
IX.SCL3.EHZ.02 2021-08-16T08:39:34.73 3.0 undecidable manual Sn -0.14 0
TV.SU26.HHZ. 2021-08-16T08:39:33.44 3.0 positive manual Pn -0.9 0
IV.MTMR.EHZ. 2021-08-16T08:39:32.60 3.0 undecidable manual Sg 7.39 0
IV.SPS2.HHZ. 2021-08-16T08:39:30.33 3.0 undecidable manual Pg 9.54 0
IV.SELL.HHZ. 2021-08-16T08:39:26.36 3.0 undecidable manual Pn 0.36 0
GU.IMI.HHZ. 2021-08-16T08:39:25.79 3.0 positive manual Pg 8.85 0
GU.GSCL.HHZ. 2021-08-16T08:39:25.46 3.0 undecidable manual Sn 0.73 0
IV.MDI.HHZ. 2021-08-16T08:39:25.45 3.0 undecidable manual Pg 12.27 0
IV.BDI.HHZ. 2021-08-16T08:39:22.29 3.0 undecidable manual Sn 1.21 0
GU.RNCA.HHZ. 2021-08-16T08:39:22.08 3.0 undecidable manual Pg 12.91 0
IV.SCHR.EHZ. 2021-08-16T08:39:18.42 3.0 positive manual Pg 9.6 0
IV.ZEN8.EHZ. 2021-08-16T08:39:13.56 3.0 undecidable manual Pg 8.11 0
IV.IMOL.HNZ. 2021-08-16T08:39:11.58 3.0 undecidable manual Sg 2.11 0
IV.EUCT.HNZ. 2021-08-16T08:39:08.52 3.0 positive manual Pn -3.95 0
IV.MIDA.HHZ. 2021-08-16T08:38:59.91 3.0 undecidable manual Sn -3.21 0
IV.FREG.EHZ. 2021-08-16T08:38:57.25 3.0 positive manual Pn -6.36 0
IV.NDIM.HHZ. 2021-08-16T08:38:54.81 3.0 negative manual Pn -1.7 0
OT.OT14.EHZ. 2021-08-16T08:38:52.86 3.0 undecidable manual Pg 1.52 0
IV.BDI.HHZ. 2021-08-16T08:38:51.50 3.0 undecidable manual Pn -0.6 0
OT.OT05.EHZ. 2021-08-16T08:38:47.57 3.0 undecidable manual Pn -3.09 0
IV.MURB.HNZ. 2021-08-16T08:38:35.88 3.0 undecidable manual S -2.55 0
IV.ATFO.HHZ. 2021-08-16T08:38:29.09 3.0 negative manual P 0.6 0
IV.MML1.EHZ. 2021-08-16T08:38:27.11 0.6 undecidable manual S 266 38.0286 110 0.63 41
IV.NRCA.HHZ. 2021-08-16T08:38:27.83 0.6 undecidable manual S 218 42.7239 107 0.17 47
IV.MC2.EHZ. 2021-08-16T08:38:25.29 0.6 undecidable manual S 219 32.2455 114 0.26 47
IV.CING.HHZ. 2021-08-16T08:38:25.70 0.6 undecidable manual S 323 33.1446 113 0.44 44
IV.FDMO.HHZ. 2021-08-16T08:38:24.78 0.6 undecidable manual S 249 30.6471 116 0.12 48
IV.CSP1.EHZ. 2021-08-16T08:38:22.11 0.6 undecidable manual S 256 19.6692 130 -0.07 50
IV.PF6.EHN. 2021-08-16T08:38:22.16 0.6 undecidable manual S 271 19.9689 129 -0.07 50
IV.NRCA.HHZ. 2021-08-16T08:38:21.53 0.3 undecidable manual P 218 42.7239 107 -0.11 70
IV.MF5.EHZ. 2021-08-16T08:38:21.60 0.3 undecidable manual S 175 16.4724 135 0.05 76
IV.MNTT.EHZ. 2021-08-16T08:38:21.92 0.6 undecidable manual S 123 14.9739 139 0.65 44
IV.GUMA.HHZ. 2021-08-16T08:38:20.68 0.3 undecidable manual S 226 11.7771 146 -0.07 75
IV.CING.HHZ. 2021-08-16T08:38:20.35 0.1 undecidable manual P 323 33.1446 113 0.1 95
IV.MC2.EHZ. 2021-08-16T08:38:20.02 0.1 undecidable manual P 219 32.2455 114 -0.09 96
IV.MML1.EHZ. 2021-08-16T08:38:20.89 0.1 undecidable manual P 266 38.0286 110 -0.06 96
IV.FDMO.HHZ. 2021-08-16T08:38:19.75 0.1 undecidable manual P 249 30.6471 116 -0.15 96
IV.MNTP.HNZ. 2021-08-16T08:38:19.73 0.6 undecidable manual S 86 2.2977 173 -0.11 51
IV.MF5.EHZ. 2021-08-16T08:38:18.08 0.1 positive manual P 175 16.4724 135 -0.03 100
IV.CSP1.EHZ. 2021-08-16T08:38:18.33 0.1 undecidable manual P 256 19.6692 130 -0.14 98
IV.PF6.EHN. 2021-08-16T08:38:18.32 0.1 undecidable manual P 271 19.9689 129 -0.18 97
IV.MNTT.EHZ. 2021-08-16T08:38:18.04 0.1 undecidable manual P 123 14.9739 139 0.09 100
IV.GUMA.HHZ. 2021-08-16T08:38:17.46 0.1 undecidable manual P 226 11.7771 146 -0.18 98
IV.MNTP.HNZ. 2021-08-16T08:38:16.94 0.1 undecidable manual P 86 2.2977 173 -0.18 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUMA.HNE. ML:1.5 0.00021318721999999998 2.4512 AML other m 2021-08-16T08:38:20.78
IV.MML1.HNE. ML:1.6 0.0001325546 1.0304 AML other m 2021-08-16T08:38:20.52
IV.GUMA.HNN. ML:1.4 0.00017507835 0.0896 AML other m 2021-08-16T08:38:20.78
IV.GUMA.HHE. ML:1.6 0.00028700000000000004 0.18 AML other m 2021-08-16T08:38:20.79
IV.GUMA.HHN. ML:1.4 0.00016549999999999998 0.26 AML other m 2021-08-16T08:38:20.84
IV.CING.HNE. ML:3.2 0.0063901315 2.0928 AML other m 2021-08-16T08:38:20.14
IV.MF5.EHN. ML:1.1 0.00006937388 0.7744 AML other m 2021-08-16T08:38:21.82
IV.CSP1.EHN. ML:1.1 0.000072194175 0.1984 AML other m 2021-08-16T08:38:22.41
IV.CSP1.EHE. ML:1.0 0.000061937055 0.3008 AML other m 2021-08-16T08:38:22.56
IV.MF5.EHE. ML:1.1 0.000081675755 3.8592 AML other m 2021-08-16T08:38:22.62
IV.MNTT.EHN. ML:1.6 0.00023378874999999998 0.16 AML other m 2021-08-16T08:38:23.56
IV.MNTT.EHE. ML:1.9 0.0005484999999999999 0.16 AML other m 2021-08-16T08:38:23.56
IV.NRCA.HNE. ML:1.7 0.00013488095 1.0816 AML other m 2021-08-16T08:38:23.84
IV.FDMO.HHE. ML:0.7 0.00001966076 0.0576 AML other m 2021-08-16T08:38:25.22
IV.FDMO.HHN. ML:0.8 0.000023968795 0.1152 AML other m 2021-08-16T08:38:26.09
IV.CING.HHN. ML:0.8 0.0000252 0.26 AML other m 2021-08-16T08:38:26.22
IV.CING.HHE. ML:0.7 0.000020450000000000002 0.48 AML other m 2021-08-16T08:38:26.56
IV.CING.HNN. ML:3.3 0.007084516 1.12 AML other m 2021-08-16T08:38:27.36
IV.MML1.EHE. ML:1.0 0.000029900000000000002 0.12 AML other m 2021-08-16T08:38:27.66
IV.NRCA.HHE. ML:1.4 0.00006321504 0.1408 AML other m 2021-08-16T08:38:28.04
IV.MML1.EHN. ML:1.1 0.000041099999999999996 0.22 AML other m 2021-08-16T08:38:28.19
IV.NRCA.HHN. ML:1.3 0.000057300000000000004 0.92 AML other m 2021-08-16T08:38:28.00
IV.NRCA.HNN. ML:1.8 0.0001699662 0.608 AML other m 2021-08-16T08:38:39.18
IV.MML1.HNN. ML:1.6 0.0001129649 1.4016 AML other m 2021-08-16T08:38:40.74
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