Earthquake with magnitude of Md 1.6 on date 25-11-2021 and time 22:28:39 (UTC) in region 3 km N Sant'Angelo in Pontano (MC)

A magnitude Md 1.6 earthquake occured in region: 3 km N Sant'Angelo in Pontano (MC), on

  • 25-11-2021 22:28:39 (UTC)
  • 25-11-2021 23:28:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.124, 13.405 at 26 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
Sant'Angelo in Pontano MC 3 1436 1436
Ripe San Ginesio MC 4 852 2288
Loro Piceno MC 5 2401 4689
Montappone FM 6 1682 6371
Colmurano MC 6 1263 7634
Falerone FM 6 3337 10971
Monte Vidon Corrado FM 7 731 11702
Massa Fermana FM 7 963 12665
San Ginesio MC 7 3498 16163
Penna San Giovanni MC 8 1108 17271
Gualdo MC 8 815 18086
Urbisaglia MC 9 2628 20714
Servigliano FM 9 2336 23050
Mogliano MC 9 4696 27746
Monte San Martino MC 11 765 28511
Montegiorgio FM 11 6851 35362
Camporotondo di Fiastrone MC 11 563 35925
Belmonte Piceno FM 12 646 36571
Cessapalombo MC 12 512 37083
Petriolo MC 12 1998 39081
Sarnano MC 13 3264 42345
Monteleone di Fermo FM 13 395 42740
Francavilla d'Ete FM 13 964 43704
Smerillo FM 14 365 44069
Tolentino MC 14 20069 64138
Santa Vittoria in Matenano FM 14 1330 65468
Monsampietro Morico FM 14 659 66127
Belforte del Chienti MC 14 1886 68013
Caldarola MC 15 1823 69836
Magliano di Tenna FM 15 1452 71288
Montefalcone Appennino FM 16 424 71712
Montelparo FM 16 778 72490
Rapagnano FM 16 2145 74635
Grottazzolina FM 16 3398 78033
Monte San Pietrangeli FM 16 2458 80491
Montottone FM 16 979 81470
Corridonia MC 16 15430 96900
Amandola FM 16 3629 100529
Pollenza MC 17 6618 107147
Monte Rinaldo FM 18 379 107526
Torre San Patrizio FM 18 2048 109574
Serrapetrona MC 18 966 110540
Comunanza AP 18 3166 113706
Monte Giberto FM 19 801 114507
Force AP 19 1354 115861
Ortezzano FM 19 774 116635
Monte San Giusto MC 20 8191 124826
Macerata MC 20 42473 167299

Municipalities with at least 50000 inhabitants

An earthquake occurred to
56 Km S of Ancona (100861 inhabitants)
57 Km NW of Teramo (54892 inhabitants)
60 Km E of Foligno (57155 inhabitants)
83 Km E of Perugia (166134 inhabitants)
86 Km N of L'Aquila (69753 inhabitants)
86 Km SE of Fano (60888 inhabitants)
88 Km NE of Terni (111501 inhabitants)
91 Km NW of Montesilvano (53738 inhabitants)
96 Km SE of Pesaro (94582 inhabitants)
99 Km NW of Pescara (121014 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
Md 1.6 2021-11-25
22:28:39
43.1242 13.4052 26 2021-11-25
22:35:24
Sala Sismica INGV-Roma 97794491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-25 22:28:39 ± 0.38
Latitude 43.1242 ± 0.0279
Longitude 13.4052 ± 0.0136
Depth (km) 26 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97794491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3018
Semi-minor axis of confidence ellipse (meter) 1071
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 188
Circular confidence region, given by single value of horizontal uncertainty (meter) 3020
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 216
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 10
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) 0.2644
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 5
Magnitude information

Md:1.6

Field Value
Value 1.6
Uncertainty 0.9
Num. used stations 4
Type of magnitude Md
Reference to an origin 97794491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-25 22:35:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MTMR.EHZ. 2021-11-25T22:30:10.05 3.0 undecidable manual Sg 10.49 0
IV.SARZ.HHZ. 2021-11-25T22:30:00.12 3.0 undecidable manual Sn 1.41 0
IV.PIPA.HHZ. 2021-11-25T22:29:55.04 3.0 undecidable manual Pg 14.11 0
IV.APRC.HHZ. 2021-11-25T22:29:44.48 3.0 undecidable manual Sg 0.6 0
ST.RONC.EHZ. 2021-11-25T22:29:38.91 3.0 undecidable manual Sn -1.92 0
IV.ZEN8.EHZ. 2021-11-25T22:29:34.38 3.0 undecidable manual Sn -0.31 0
GU.POPM.HHZ. 2021-11-25T22:29:32.79 3.0 undecidable manual Sg 6.53 0
IV.SBPO.HNZ. 2021-11-25T22:29:28.38 3.0 undecidable manual Sn 2.69 0
OX.MPRI.HHZ. 2021-11-25T22:29:25.55 3.0 undecidable manual Sn 3.44 0
IV.TREM.HHZ. 2021-11-25T22:29:01.11 3.0 positive manual Pn -1.38 0
GU.GSCL.HHZ. 2021-11-25T22:28:59.96 3.0 positive manual Pn 1.44 0
IV.RMP.HHZ. 2021-11-25T22:28:59.77 3.0 positive manual Pn -3.66 0
IV.MC2.EHZ. 2021-11-25T22:28:51.38 0.1 undecidable manual S 217 0.2644 125 0.53 88
IV.FDMO.HHZ. 2021-11-25T22:28:50.50 0.1 undecidable manual S 249 0.2482 128 0.05 98
IV.CSP1.EHZ. 2021-11-25T22:28:48.27 0.1 undecidable manual S 258 0.1493 143 -0.12 97
IV.MNTT.EHZ. 2021-11-25T22:28:48.62 0.1 undecidable manual S 114 0.152 143 0.17 96
IV.MF5.EHZ. 2021-11-25T22:28:47.92 0.1 undecidable manual S 164 0.1421 145 -0.34 94
IV.FDMO.HHZ. 2021-11-25T22:28:45.73 1.0 positive manual P 249 0.2482 128 0.02 25
IV.MC2.EHZ. 2021-11-25T22:28:45.84 1.0 undecidable manual P 217 0.2644 125 -0.09 24
IV.MNTT.EHZ. 2021-11-25T22:28:44.52 0.1 negative manual P 114 0.152 143 -0.02 100
IV.CSP1.EHZ. 2021-11-25T22:28:44.42 0.1 undecidable manual P 258 0.1493 143 -0.09 98
IV.MF5.EHZ. 2021-11-25T22:28:44.30 0.1 positive manual P 164 0.1421 145 -0.14 98
IV.APEC.HHZ. 2021-11-25T22:28:41.90 3.0 negative manual P -2.33 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MF5.EHZ. Md:1.4 13 END duration s
IV.MNTT.EHZ. Md:1.6 16 END duration s
IV.FDMO.HHZ. Md:1.6 16 END duration s
IV.MC2.EHZ. Md:1.6 15 END duration s
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