Earthquake with magnitude of Md 2.8 on date 06-07-1997 and time 16:15:47 (UTC) in region 4 km E Bolognola (MC)

A magnitude Md 2.8 earthquake occured in region: 4 km E Bolognola (MC), on

  • 06-07-1997 16:15:47 (UTC)
  • 06-07-1997 18:15:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.98, 13.27 at 2 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Bolognola MC 4 142 142
Sarnano MC 7 3264 3406
Amandola FM 7 3629 7035
Montefortino FM 7 1178 8213
Acquacanina MC 10 121 8334
Montemonaco AP 10 604 8938
Gualdo MC 11 815 9753
Fiastra MC 11 559 10312
Ussita MC 12 444 10756
Comunanza AP 12 3166 13922
Castelsantangelo sul Nera MC 14 281 14203
Cessapalombo MC 14 512 14715
Smerillo FM 14 365 15080
San Ginesio MC 15 3498 18578
Monte San Martino MC 15 765 19343
Penna San Giovanni MC 15 1108 20451
Montefalcone Appennino FM 15 424 20875
Visso MC 16 1107 21982
Fiordimonte MC 16 202 22184
Montegallo AP 16 523 22707
Sant'Angelo in Pontano MC 17 1436 24143
Camporotondo di Fiastrone MC 17 563 24706
Pievebovigliana MC 18 866 25572
Palmiano AP 18 196 25768
Caldarola MC 18 1823 27591
Force AP 18 1354 28945
Santa Vittoria in Matenano FM 19 1330 30275
Pieve Torina MC 19 1458 31733
Ripe San Ginesio MC 20 852 32585

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km E of Foligno (57155 inhabitants)
50 Km NW of Teramo (54892 inhabitants)
69 Km NE of Terni (111501 inhabitants)
71 Km N of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
74 Km S of Ancona (100861 inhabitants)
89 Km NW of Montesilvano (53738 inhabitants)
96 Km NW of Pescara (121014 inhabitants)
98 Km S of Fano (60888 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
Rev 1000 Md 2.8 1997-07-06
16:15:47
42.98 13.27 2 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 272749
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-07-06 16:15:47 ± 0.307
Latitude 42.98 ± 0.01
Longitude 13.27 ± 0.02
Depth (km) 2 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 272749

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 1549.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 187
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00413
Epicentral distance of station farthest from the epicenter (degree) 0.01198
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.8

Field Value
Value 2.8
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 272749
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:17:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SDI.Z. 1997-07-06T16:16:31.23 10.0 undecidable manual SN 162 0.012 -0.39 0.3
--.PQ9.Z. 1997-07-06T16:16:21.58 10.0 undecidable manual SG 173 0.0087 -0.11 0.7
--.MNS.Z. 1997-07-06T16:16:14.30 10.0 undecidable manual SG 215 0.0066 -0.14 0.7
--.SDI.Z. 1997-07-06T16:16:13.41 10.0 undecidable manual PN 162 0.012 0.51 0.7
--.RSM.Z. 1997-07-06T16:16:10.48 10.0 undecidable manual PN 327 0.01 0.54 0.7
--.ARV.Z. 1997-07-06T16:16:08.94 10.0 undecidable manual SG 334 0.0051 -0.05 0.8
--.PQ9.Z. 1997-07-06T16:16:07.49 10.0 undecidable manual PG 173 0.0087 0.32 1.3
--.ASS.Z. 1997-07-06T16:16:05.29 10.0 undecidable manual SG 279 0.0041 0.24 0.7
--.MNS.Z. 1997-07-06T16:16:03.00 10.0 undecidable manual PG 215 0.0066 0.02 2.1
--.AQU.Z. 1997-07-06T16:16:00.58 10.0 undecidable manual PG 170 0.0057 -0.48 0.9
--.ARV.Z. 1997-07-06T16:15:59.33 10.0 undecidable manual PG 334 0.0051 -0.5 0.8
--.ASS.Z. 1997-07-06T16:15:57.46 10.0 undecidable manual PG 279 0.0041 -0.09 2.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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